The indicator of short-circuited turns with their own hands.

Today it will be about this necessary to all and everyone who is at least a little engaged in the repair of impulse equipment and an electrician instrument - the indicator of short-circuited turns. In the network you can find quite a lot of different schemes, and mostly only on Russian-speaking sites, foreigners probably use only ready-made devices unlike us.

Homemade tester
Homemade tester

The schemes in the network almost all are in their composition of the inductor coil, which imposes certain difficulties in their manufacture and complexity when working with them. The scheme presented below is deprived of these flaws and does not contain scarce parts. The author of this scheme was written at the end of the article, to patent it did not work out due to bureaucracy in all areas in our country. Here is the scheme itself, it can be checked by impulse and power transformers with its help:

Simple scheme
Simple scheme

The main elements of the scheme:

C1-56 NF, serves to check the pulse transformers, the generation frequency is about 40 kHz;

C2-10 ICF, serves to check transformers by 50 Hz, power, when it is connected, the generation frequency is about 100 Hz;

R2, R4 - current transistors for transistors;

R3- restrictive resistor for probe;

VD1 is a 12 volt stabilion (with a diagram from 12 volts);

HL1- Indicator LED (when the winding breaks is not lit, when the closure, the closure may be slightly smoldering, with a good winding - it burns);

VT1-transistor VSR100, I put the IRF740, CT829 and everything worked fine;

VT2-transistor bipolar C945, such many in computer power supplies;

DD1- K155L3, you can put K561L7, only by recounting on any calculator in the network elements of the generator. You can collect the generator on the NE555.

Operation: Apply meals, the LED does not burn, connect any winding of the test transformer, the LED should light up with a good and not to burn when climbing or turning the closure. However, not every throttle can be checked by this device, low inductance does not allow checking. To check the transformers by 50 Hz, it is necessary to change the generator frequency by connecting the condenser by 10 μF through the switch, toggle switch, etc.

Installation on the knee for checking
Installation on the knee for checking

I collected this scheme while only on the knee mounting on the knee, heathed from the battery by 12.6 volts - everything works. Made a printed fee for this scheme, but I have not yet managed to make it and check it out, I'll post it too.

Already quizgalena
Already quizgalena

When printing from the Lay file, you will need to mirror if anyone else does and notice the error - be sure to write, we will do and correct together. Link to the author's channel: https://www.youtube.com/watch?v=he7xnj6x8es&t=1825s Thank you for your attention! Write mail to whom you need my searches in Lay!

Good day. I bring to your attention your own embodiment of a fairly popular and simple circuit of the inter-touch circuit indicator in the rotors of collector electric motors.

On the Internet, many options for the manufacture of similar schemes collected using different combinations of transistors and the same work principle are described. The main ideas were: 1. Collect this device from the disassembly of different electronic trash details after dismantling.

2. Make a finished design, i.e. including hull.

3. In the manufacture of getting rid of themselves from searching or self-winding inductance coils specified in the schemes found schemes, and use those that were at hand!

4. Conduct comparative testing of construction with factory manufacture.

This design uses: - Fluorescent lamps "Era".

- Corps from the burnt start of a luminescent lamp.

- Folgized fiberglass one-sided 109x28mm.

- Screws 3mm.

- Pieces of plastic.

- Radioetal according to the scheme.

From the tools used: - MFI type "Dremel".

- soldering iron.

- Super glue.

- screwdriver, nippers, etc.

Since the schemes with different inductors are used in the internet found on the Internet, the idea of ​​the experiment came to make two coils with the same rates work normally. Therefore, for the beginning, the scheme was collected and was tested on a dumping board. Customized using Time Equipment more than the USSR.

Circuit diagram of the device, according to the details used.

The diagram used coils from two identical fluorescent light bulbs "ERA" (long ago, I have been lying around without a reason, I use LED). Because I did not have an LC-meter at hand, and there was no desire to calculate the parameters in other ways, then their inductance is not yet known to me.

In the descriptions found on the Internet, similar device schemes were indicated by different operating frequencies from 30kHz to 120kHz. The selection of frequency condenser C1 was able to achieve sinusoids relative to the correct shape on the radiating coil L1. The operating frequency turned out to be about 91kHz.

At the receiving coil L2, the signal had a distortion in the form of uneven sinusoids and "Zyuki" on it. Or at the expense of mutual filing, or because of the appearance of harmonics (I did not understand deeply).

Using the "Scientific Tyk" method, parallel to the receiving coil was mounted capacitor C5 (which is absent in similar schemes), based on the idea C5 = C1. Which adjusted the receiving lc circuit under the operating frequency. As a result, the amplitude of the signal rose on the receiving coil and the shape of the sinusoids was leveled, which significantly increased the sensitivity of the device.

The distance between the coils was selected minimal, in which there is no strong direct flooring between the coils, subject to the absence of a number of closed conductor (for convenience of checking relatively short anchors).

The printed circuit board was made with the possibility of installing coils at a distance of 21mm and 27mm between their centers (for the convenience of a possible experiment with different coils). Also on the board left free fields for the convenience of installing the board in the case.

The printed circuit board is made on a piece of unilateral foil fiberglass with dimensions of 109x28mm.

Mounting on the board turned out not very presentable species, because A piece of fibercstolite was used, I had from Soviet times from Soviet times. Apparently, he had incomprehensible divorces and spots of brown, which were strongly confused, but did not affect the performance of the instructor.

The valve body was made of a housing of a burnt pad from a fluorescent lamp.

Using the MFI type "Dremel" installed in the homemade machine

The upper part of the case was cut around the edge of the wire holes. Sleep interfering ribs. The lower part of the case is adjusted with the nap.

Further, plastic feet for boards and holes for switches, LEDs and holes are cut into the housing with a superclone. Then drilled holes for the screw 3mm to fasten the case.

The result was a sufficiently convenient case with dimensions of 113x33x17mm. Which is easy to understand the battery replacement. Holes for adjustment can be sealed with a piece of tape.

For ease of operation of the instructorrine, the arrow on the sticker indicates the locations of the centers of inductors. Red dots on the housing are centers of coils.

First, the instructor was checked at home on an anchor where a closed turn was simulated by a piece of wire. Also, the device reacts perfectly on any piece of closed wire (i.e. without the presence of a core). The device is very sensitive and reacts to any closed conductor including rims of glasses, the ring for keys, etc. This is very convenient to have two pre-tuned range of sensitivity.

Also, the results of the verification of the anchors with this dormitory were compared with the results obtained on the specialized equipment of the company "Bosch" in the workshop.

The results of the comparative diagnostics of the anchors on the KZ I was very satisfied because They completely coincided. The instructor confidently showed the presence of KZ on the "killed" anchors and did not show false positives on "healthy".

Already after testing in the workshop. Experimenting with an already finished tidworm, an interesting ability to set up not only two sensitivity modes of the instructor, but also two different modes of operation:

1. When you turn on the green, when checking the "healthy" anchor, the green continues to burn green, if there is a short circuit, the red is on the anchor, and it works on a simple piece of closed wire, does not respond to a metal surface.

2. When you turn on the red, when checking the "healthy" anchor lights up and the green lights up, if you have a short-circuit, the red shore lights up, while it does not work on a simple piece of closed wire, reacts to the metal surface green.

In the workshop, the instrument was tested in the first mode. As it turned out, due to the presence of a switch and two trimming resistors, the instrument can be configured either by two levels of sensitivity or two different modes of operation.

If something in the description is missed, I hope these nuances can be considered on the presented photos. I apologize in advance for possible errors and typos.

If you need additional information, write to the mail, I will definitely try to answer. Reviews, ideas, suggestions for improving the design and comments are very welcome.

January 2020

Stanislav Shrukkin.

Email: [email protected]

Become an author of the site, publish your own articles, descriptions of homemade with payment for text. Read more here

.

Electrical machines consist of a rotor and stator. The stator is a fixed winding laid in the housing. Anchor is a movable part, so the particles of dirt and lubrication are usually falling onto it and the oxidized flare is formed under the influence of temperature.

It can cause a faulty work or failure of the rotor of the electric machine. It is detected by a visual inspection. Nagar can cause intersensional closure in anchor. As such, the rotor of the electric motor under normal operating conditions is not wearing.

Over time, only current-grapple brushes are subject to replacement if their length is no longer matched to the permissible size. However, long-term loads are the cause of the heating of the stator windings, which as a result and contributes to the formation of Nagara. Anchor interstitious circuit can happen in mechanical damage.

Invalid on rubbing surfaces, the presence of chips, dents, scratches and cracks. The closure between the turns of the windings of the anchor occurs in the event of an exit of the bearing nodes. Then anchor is thrown out, which leads to damage to the lamellas. Another reason for the closure is the impact of moisture.

If dripping water drops on metal surfaces begins corrosion process. Rust makes it difficult to rotate the anchor, the current loads grow, the heating occurs in the result of which it can be squeezed by solder, which in turn during long-term operation can lead to intersensional closure.

Diagnose this malfunction is possible at home. Conduct this procedure with inductor inductor called choke. The indicator of short-circuited turns with their own hands: why does KOROTIT

  • With this device, you will be able to learn the reference direction, as well as the order in which the winding coils are connected to the collector lamella.
  • Thus, an anchor check is performed on the inter-touch closure.
  • It is not difficult to make such a device with your own hands, it is enough to get acquainted with the content of our step-by-step instructions.

For the assembly of the device, the P-shaped transformer iron will be required. It can be removed from the vibration pump type kid.

  1. The indicator of short-circuited turns with their own hands: why does KOROTIT
  2. Step number 1
  3. The indicator of short-circuited turns with their own hands: why does KOROTIT

We disassemble the structure and get the p-shaped transformer iron. That this is predetermined to heat the lower part of the pump so that the polymer to which the coils are flooded.

  • The indicator of short-circuited turns with their own hands: why does KOROTIT
  • Step number 2.
  • The indicator of short-circuited turns with their own hands: why does KOROTIT

Next, with the help of a girlish tool, cut the edge on the transformer gland, as shown in the photo. When processing, remember that iron is puff, so all operations need to be performed carefully so that there are no deposits formed. After the emulsion machine, remove all the sharp edges on the product. This is necessary to preserve the integrity of the enamel wire.

  1. The indicator of short-circuited turns with their own hands: why does KOROTIT
  2. Observe strict angles dimensions not necessarily, the main thing is that the anchors of different sizes are easily located in the cooked place.
  3. Step number 3.

The next action will be the manufacture of coils. To win in the size of the device and the choke did not turn out to be too cumbersome, we will produce not alone, but two coils that will be placed on both sides of the P-shaped iron. To do this, you will need:

  • cardboard;
  • measure tool;
  • pencil;
  • sharp knife;
  • scissors.

The indicator of short-circuited turns with their own hands: why does KOROTIT

We measure all the sizes of the P-shaped transformer iron by their maximum values. Next, we transfer them to the cardboard and draw the scan of the body of the future coil. At the same time, it is necessary to take into account the size of the groove of the core. Next, we spend the blunt end of the scissors on all lines of inflection.

This will help curb cardboard without problems. Cut the scan. In the same way, we make the pattern on the other side. Now we need to prepare covers for coils. They will need 8 pieces. Location on cardboard blanks for covers. The outer contour cut out with scissors, an inner sharp knife.

  • The indicator of short-circuited turns with their own hands: why does KOROTIT
  • Next, glue the covers with the prepared sweeps and get two island of future coils.
  • Step number 4.
  • The indicator of short-circuited turns with their own hands: why does KOROTIT

Now it is necessary to wind the wire on the coil. To do this, we use the calculation of the transformer. First, determine the core cross section by multiplying its length and width. In our case, the area was 3.7 cm x 2.2 cm = 8.14 cm2. Next, we divide 13200 / 8.14 = 1621 turns.

This number is rounded up to 1700 turns and equally distributed between two coils, it turns out 850 turns. Such a number can be coherent in manual mode. In this case, the error in 20-40 turns will not affect the result. But it is still better to make a mistake in the direction of magnification.

Before starting winding, you need to make holes in which the ends of the wire will go. A shrinkable cambrick is put on the free end of the wire. The end of the wire is inserted into the hole and then goes the process of winding.

At its end, on the other end we solder the wiring with the cambrick and insert into another hole. Exactly so we wake the second coil.

Step№5

The indicator of short-circuited turns with their own hands: why does KOROTIT

After both coils are ready, we put them on the P-shaped core, while the conclusions of the wires should be located downstairs on the one hand. It is important that the coils are checked identically, the turns are directed equally, and their endings are bred in one direction. Next, the connection should be the beginning of induction coils and supply voltage (220V) for their ends.

Step number 6.

To test the homemade choke, we use the device of the factory manufacture. First, check the anchor on the intersensive closure of the industrial device and the plates sticking the plates in chalk. When checking the rotor, our choke plate will be modeled in the same places. Let us sum up, the device is correct, the results are identical.

Step number 7.

Remove the coils from the core and insulating the tape. We put them back come up food. The throttle is ready to operate, you can proceed to check for the presence of an interstetic closure in anchor.

To do this, you must enable the device manufactured by us, put an anchor into the neckline and slowly turn it.

Checking the inter-touch closure using analog tester

However, check the anchor to the inter-touch closure can be used with the help of a multimer. In this case, it will only be possible to know there is a break in the windings of anchor or not. A more accurate device will be an analog tester.

With it, measure the resistance between each two lamellas. It must be identical. After installing the device for 200 kΩ, one probe is closed on the ground, and we apply to each lamella.

If anchor does not call for a mass, then it is most likely a good or need to be checked with a throttle.

Indicator for the detection of intersensate anchor closure

  1. You can use a simple indicator that can be used to detect an interteen circuit that can be collected according to the scheme below.
  2. In order to discharge such an elementary indicator, it will take some money, free time and your hands.

We purchase 5 transistors, 8 resistors, 4 condenser, 2 LEDs and a battery. In addition, we independently wear two coils.

We prepare the printed circuit board and collect the device. Perform an inspection of inter-touch closure using such an indicator is very convenient. The weighty argument in favor of the device is that it can easily find inter-touch closure and on stators as indicated below in the video.

If an intersensional closure is detected at anchor, what to do?

  • It is necessary to check everything if the metal line is attracted in a specific groove, it means that its coils take place to be an intersless closure.
  • In addition, carefully view the collector.
  • If a closure occurs between its lamellas, it also indicates the presence of an intercity closure.
  • Most often in such situations, it is necessary to fully rewind anchor, since even one winding without damage to the rest seems very problematic.
  • In addition, you can learn about the presence of inter-touch closure, just carefully examined the wire and the armature savings.
  • For example, it may be found that the turns are dropped or bent, as well as that between them are visible different types of particles, conducting current, for example, solder, flowing after the proper.
  • In this case, the breakdown can be eliminated by removing foreign bodies or by correcting the reference to the tire.
  • Therefore, the anchors on the inter-touch closure to reflect is much easier than it seems.
  • In addition, it is recommended to cover the details of the varnish after removing the closure.
  • Among other things, another sign of the presence of an inter-touch closure is sparking brushes.
  • We are talking about situations when local heating windings are observed.
  • These are the main features that you can detect an intersensional circuit in anchor.

And also you can see Video Check Anchor Starter

Pick out for you:

A source: http://stroysvoy-dom.ru/proverka-yakorya-na-mezhvitkovoe-zamykanie/

Multi-touch Rotor Circuit Indicator

The indicator of short-circuited turns with their own hands: why does KOROTITGood day. I bring to your attention your own embodiment of a fairly popular and simple circuit of the inter-touch circuit indicator in the rotors of collector electric motors. The indicator of short-circuited turns with their own hands: why does KOROTITOn the Internet, many options for the manufacture of similar schemes collected using different combinations of transistors and the same work principle are described.

The main ideas were:

1. Collect this device from the disassembly of different electronic trash details after dismantling. 2. Make a finished design, i.e. including hull. 3. In the manufacture of getting rid of themselves from searching or self-winding the inductance coils listed in the found schemes of the nominal, and use those that were at hand! 4. Conduct comparative testing of construction with factory manufacture equipment. This design uses: - Fluorescent lamps "ERA". - Corps from the burnt puncture of the fluorescent lamp. - Fungalized fiberglass one-sided 109x28mm.- screws 3mm.- plastic pieces. - Radioetal according to the scheme. From the tools used: - MFI type "Dremel". - Soldering lock. - Superclauses. - Screwdriver, plumbage, etc. Since the schemes with different inductors are used in the internet found on the Internet, the idea of ​​the experiment came to make two coils with the same rates work normally. Therefore, for the beginning, the scheme was collected and was tested on a dumping board. Configured using Time Equipment Times more USSR. Procipient diagram of the device, according to the parts used. The indicator of short-circuited turns with their own hands: why does KOROTITThe diagram used coils from two identical fluorescent light bulbs "ERA" (long ago, I have been lying around without a reason, I use LED). Because I did not have an LC-meter at hand, and there was no desire to calculate the parameters in other ways, then their inductance is not yet known to me. The indicator of short-circuited turns with their own hands: why does KOROTITThe indicator of short-circuited turns with their own hands: why does KOROTITThe indicator of short-circuited turns with their own hands: why does KOROTITIn the descriptions found on the Internet, similar device schemes were indicated by different operating frequencies from 30kHz to 120kHz. The selection of frequency condenser C1 was able to achieve sinusoids relative to the correct shape on the radiating coil L1. The operating frequency turned out to be about 91kHz. The indicator of short-circuited turns with their own hands: why does KOROTITAt the receiving coil L2, the signal had a distortion in the form of uneven sinusoids and "Zyuki" on it. Or at the expense of mutual filing, or because of the appearance of harmonics (I did not understand deeply). The indicator of short-circuited turns with their own hands: why does KOROTITUsing the "Scientific Tyk" method, parallel to the receiving coil was mounted capacitor C5 (which is absent in similar schemes), based on the idea C5 = C1. Which adjusted the receiving lc circuit under the operating frequency. As a result, the amplitude of the signal rose on the receiving coil and the shape of the sinusoids was leveled, which significantly increased the sensitivity of the device. The indicator of short-circuited turns with their own hands: why does KOROTITThe distance between the coils was selected minimal, in which there is no strong direct flooring between the coils, subject to the absence of a number of closed conductor (for convenience of checking relatively short anchors). The indicator of short-circuited turns with their own hands: why does KOROTITThe printed circuit board was made with the possibility of installing coils at a distance of 21mm and 27mm between their centers (for the convenience of a possible experiment with different coils). Also on the board left free fields for the convenience of installing the board in the case. The printed circuit board is made on a piece of one-sided foil fiberglass with dimensions of 109x28mm. Mondation on the board turned out not very presentable species, because A piece of fibercstolite was used, I had from Soviet times from Soviet times. Apparently, he had incomprehensible divorces and spots of brown color inside, which was strongly embarrassed me, but did not affect the operability of the instrument. The instrument was made of the body of the burnt pad from the fluorescent lamp.

With the help of MFI type "Dremel" installed in a homemade machine, the upper part of the housing was cut around the edge of the holes for the wires. Sleep interfering ribs. The lower part of the case is adjusted with the nap.

Further, plastic feet for boards and holes for switches, LEDs and holes are cut into the housing with a superclone. Then the holes for the screw of 3mm for fastening the case are drilled. The result was a sufficiently convenient case with dimensions of 113x33x17mm. Which is easy to understand the battery replacement.

The adjustment holes can be sealed with a piece of tape. For the convenience of the instruction of the instructor, the arrow on the sticker indicates the locations of the centers of inductor coils. Red dots on the housing are the centers of the coils. At first, the instrument was checked at home on an anchor, where a closed round was simulated by a piece of wire.

Also, the device reacts perfectly on any piece of closed wire (i.e. without the presence of a core). The device is very sensitive and reacts to any closed conductor including rims of glasses, the ring for keys, etc. This is very convenient to have two pre-tuned range of sensitivity.

Also, the results of the verification of the anchors with this ductor were compared with the results obtained on the specialized equipment of the company "Bosch" in the face of the workshop. The results of the comparative diagnostics of the anchors on the KZ I remained very pleased because They completely coincided. The instructor confidently showed the presence of KZ on the "killed" anchors and did not show false positives on "healthy".

Already after testing in the workshop. Experimenting with the already finished tidwear, an interesting ability to set up not only two sensitivity modes of the instructor, but also two different operating modes are: 1.

When you turn on the green, when checking the "healthy" anchor continues to burn green, if the shortcut, the KZ is on the anchor, the red lights up, while it works on a simple piece of closed wire, does not respond to a metal surface.2.

When switching on, red is on, when checking the "healthy" anchor, green lights up and burns, in the presence of the shortcut, the red shore lights up, while it does not work on a simple piece of closed wire, reacts to the metal surface lights up the green. In the instrument's workshop tested in the first mode.

As it turned out, due to the presence of a switch and two trimming resistors, the instrument can be configured either by two levels of sensitivity or two different modes of operation. If something in the description is missed, I hope these nuances can be considered on the photos represented. I apologize in advance for possible errors and typos. If you need additional information, write to the mail, I will try to answer. Reviews, ideas, suggestions for improving design and comments are very welcome.

Email: [email protected]

Become an author of the site, publish your own articles, descriptions of homemade with payment for text. Read more here.

9.8.

Idea

9.7

Description

9.7

Execution

Final grade: 9.75

A source: https://usamodelkina.ru/17000-indikator-mezhvitkovyh-zamykanij-rotora.html.

INDICATOR OF INTERVICE CAMATIONS OF IKZ (IKZ)

The diagram of the device was found on the network and repeated. The board tracing had to produce from scratch taking into account the availability of SMD elements. This option is collected entirely on inapproprous radio elements to obtain maximum compactness. Power is carried out from the CR2032 battery (3 volts). It has two indicators and a button.

The verification procedure is: the device is calibrated with a resistor in the on state. Green LED - no closures. Red - closure. For testing for example an anchor, the device is located in the coils perpendicular to an anchor at a distance of 1-2 mm and rotated.

If the winding falls in the field with a closure - the red LED lights up.

The indicator of short-circuited turns with their own hands: why does KOROTIT  The indicator of short-circuited turns with their own hands: why does KOROTIT

This looks like a device without housing. Convenient tester and has the right to occupy a place in the garage. When checking generators saves time. To check the same anchor through a multimeter, you will have to check each winding separately on resistance, and the windings can be N-O Number.

The indicator of short-circuited turns with their own hands: why does KOROTIT  The indicator of short-circuited turns with their own hands: why does KOROTIT

Simple testing on a closed ring from a piece of wire. Finding into the field, a closed conductor brings the EMF and tears the connection of the contours - the red indicator lights up.

The indicator of short-circuited turns with their own hands: why does KOROTIT  The indicator of short-circuited turns with their own hands: why does KOROTIT  

Compact and reliably. Very useful for testing various windings. For example, in the case of the generator repair.

  • The indicator of short-circuited turns with their own hands: why does KOROTIT  The indicator of short-circuited turns with their own hands: why does KOROTIT
  • Scheme and wiring board. The indicator of short-circuited turns with their own hands: why does KOROTIT
  • File in Format - Layout 6.0 -> Download
  • I can send a ready-made kit for assembly yourself (fee + components) Write in comments.
  • An anchor checking example and closure detection in the video in the video below.

As a result of the fact that there were no few requests for the finished ICZ device - a limited batch of 8pcs and 2 Kit (set) for self-assembly was made. Build date 08.02.2018

The indicator of short-circuited turns with their own hands: why does KOROTIT- The cost of the finished device is 1k. - The cost of a set for self-assembly is 0.5K. - Price excluding delivery.

- sending either TC, or by Russian Post. Sending from Chelyabinsk.

You can pay for transfer to the CAT card. Write in a personal VK on the issue of payment. The order of this, you pay on the card, send, throw off the track, for receipt, calculate with the TC or Mail.

The next party will be as you desire and free time.

TOTAL: Parts of instruments from 8 pcs. And 2 sets for self-assembly sold and scattered into different cities and villages. Currently, there are no devices and sets too. Will there be I do not know.

Collect the party and start it spread me prompted comments on the article. Experience interesting. But, in all this there is a couple of moments that they stop at the organization of the following: the first, this is what some customers have expected a wonder-device, which is clearly and accurately show such a fault as an intersensional KZ.

The second point, this is of course Russian Post, comments are too unnecessary. At the first time, it is strange to me that there is no comments by those who received the device about how to use and with what difficulties are facing.

From myself I can add, only the fact that the device is analog, requires calibration before use and there are some factors that can not make clarity into the operation of the device, namely the design of the object being checked. Some of the customers sent video calibration and examples of testing the device itself.

In most cases, no one writes about positive work and most likely because the device works and suits everything. Anyone who wanted, I sent the device and did not throw anyone. Thanks to all.

11/20/2019 Latest news:

The cost of the finished device is 1000 p.

The cost of the set for self-assembly is 500r. Delivery is charged separately with TC or Mail.

Sending "Russian Post" I-Class ~ 200r - 250r.

  1. What are sent to: After sending, you will have a track number and photo of sending.
  2. Important moments:

1. Reviews almost no one leaves here. Sometimes they write to VC in PM. Save here in the form of screenshots.

Personally, I use the device extremely rarely, since it is not related to similar repairs where the indicator would be used, because I can only focus on feedback.

2. Sometimes they still write in a personal "not working, you checked yourself when I sent?" Yes, of course, each device previously checking on a piece of closed wire in the ring.

At the beginning, calibrate the device with a trimmed resistor on the board, exhibiting the trigger threshold and check. If the device shows closures in the wire ring, and there is no one - I consider the device to be operational.

I also re-test the rotor on me with the presence of an inter-zone closure (the one that is on video.)

Usually after people are calibrated, then everything is possible. And I would also like to note that this device is analog, it may well be something and not to show for a number of reasons, such as: no interstitious KZ, the closure does not form rings where it is possible to attach the field, sensitivity is not exhibited, sensitivity is unscrewed to maximum.

3.

If you are not ready to assemble the device yourself, do not order the assembly kit! Installation is important and if you do not have the experience of assembly and soldering, it is not recommended to do it yourself.

If you still decide on it, then the responsibility for the operation of the device you are independently. Practice shows that not everyone can cope with this and subsequently may occur.

For example, as not to be installed:

Attention, in the roller https://www.youtube.com/watch?v=18nyhuzwkks, a person used my photos, but I don't know anything about him.

A source: http://irssy.ru/ikz.

Indicator of the Mixed Circuit With Your Hands

The indicator of short-circuited turns with their own hands: why does KOROTIT

People who are often engaged in the repair of engines and transformers, as well as other devices where windings or inductors are used, are constantly faced with the need to verify their condition and integrity. If the opening can be determined using even the most primitive tester, it becomes much more difficult to identify the inter-touch closure. So, today we have an emergency closure indicator with your own hands and his Real tests , go!

Instrument for checking inter-touch closure - Scheme

To determine the intersensive closure, there are special probes testers, which are based on various physical phenomena. The scheme of one of such devices we have already considered earlier.

But today we have a more exotic scheme that was described in the journal " Radio constructor 03/2007 p. 17.

Such a device is able to automatically determine if the opening is in the winding, or identify the intersensile closure.

The indicator of short-circuited turns with their own hands: why does KOROTIT

The basis of this indicator is the principle of self-induction. A sound frequency pulses are served on the tested coil.

Impulse generator assembled on VT1-VT2. and the frequency of it depends on C1-C2. (must be in the sound range).

Transistors VT3-VT. 4 Unleash the generator from the tested coil and provide the desired value of the current pulses that are fed to the coil.

If the coil is properly, impulses of reverse polarity will appear on its outputs. Diode D1 allocates these self-induction of the tested coil and submits them to the database VT5. . Transistors VT5-VT6. Improve self-induction pulses and feed the reinforced signal on the speaker GR.1 .

If there is an intersless closure in the coil - its inductance falls strongly, self-induction EMF will have a minor value, insufficient for opening VT5. and sound speaker GR.1 .

Transistors VT7-VT. 8 are responsible for the work of LEDs HL1 и HL2. . When there is a break in the coil - burns HL2. if there is no cliff - transistors open VT7. VT8. and lights up HL1 , but HL2. Shunt and sweeps.

How to get bibolar food from unipolar - artificial average point

One of the largest drawbacks of this scheme is two-polar nutrition.

More practical and convenient to feed the intersless closure tester from the Croon type battery ( 9 B. ) And form an artificial average point.

Using a simple scheme, the work of which is described in the book " Voltage and current stabilizers for IMS (SI) »Uspensky B. You can get an artificial average point.

The indicator of short-circuited turns with their own hands: why does KOROTIT

Of the parts used in the scheme:

  • operational amplifier: MC34072. (or any other type analog LM393. )
  • Transistors SS8050. и SS8550. (You can and a weak pair, with a collector's working current of at least 200-300 mA)
  • Electrolytic capacitors 22 μF. with a working voltage 16 B. .

Attention! When adjusting the scheme, in no case should you arrange a CZ with an average point, one of the transistors instantly fails, and also fails.

We sketched the sketch of the board in which the feed from the crown is already taken into account, the size of the board is 45x70 mm.

The indicator of short-circuited turns with their own hands: why does KOROTIT

  • PNP Transistors - CT209
  • NPN Transistors - BC239
  • Diode D1 - Germany AA119
  • C3 - film capacitor, 4.7 MKF, 100 V
  • GR.1 - dynamic head 0.5 W, 8 ohms.

This tester fits in the old building from the Soviet DomoFon. Current consumed with open terminals - 11a , with closed terminals - 38 Ma , when the test is a good coil 65 Ma . Generator frequency - 1 kg c.

  • The indicator of short-circuited turns with their own hands: why does KOROTIT
  • In the manufacture of the board, when she was ready, noticed that she was forgotten to mirror, but they left as it is, it does not affect the functionality.
  • The indicator of short-circuited turns with their own hands: why does KOROTIT
  • An additional button with a small inductance is connected to the terminal output to check the device's health.
  • The indicator of short-circuited turns with their own hands: why does KOROTIT

Tests of the instrument for checking inter-touch closure

The tester is turned on, the terminals are open, HL2 is burning " Obust is "

The indicator of short-circuited turns with their own hands: why does KOROTIT

A pulse transformer winding is connected, HL1 is lit. No cliff "GR.1 sounds at a frequency of 1 kHz.

The indicator of short-circuited turns with their own hands: why does KOROTIT

Minimal inductance that determines the device - 100 μH . When connecting such a coil, the sound on GR.1 is not loud, the device reacts to the inductance of less than 100 μg. The device reacts only by the HL1 diode "Out."

If the Multi-Timing Indicator does not work

The correctly assembled scheme starts to work immediately and does not require additional adjustment.

If HL1 and HL2 work correctly, but there is no sound G.1 When connecting a good coil - you need to check the operation of the generator and its amplifier. To do this, you need to connect any speaker to output terminals. When the generator runs, you can immediately hear a loud and clear sound on the dynamics that is connected to the terminals.

If HL1 and HL2 do not work correctly. When the device is turned on immediately, both are both, no sound G.1 when connecting a good coil - it is necessary to check the polarity of the diode diode diode.

Multi-touch indicator - Demonstration of work

Lay Multivitton Tester Tester Format, you can download the link below.

A source: http://diodnik.com/indikator-mezhvitkovogo-zamykaniya-svoimi-rukami/

The indicator of short-circuited turns

This article I want to start the rubric of useful articles from other resources, articles that will largely help us to radio amateurs, I hope they will be as useful for you as for me. This device will become an excellent addition to the inductor meter.

People who are often engaged in the repair of engines and transformers, as well as other devices where windings or inductors are used, are constantly faced with the need to verify their condition and integrity.

If the opening can be determined using even the most primitive tester, it becomes much more difficult to identify the inter-touch closure.

So, today we have an indicator of inter-touch closure with your own hands and his real tests, went

Instrument for checking inter-touch closure - Scheme To determine the intersensive closure, there are special probes testers, which are based on various physical phenomena.

The scheme of one of such devices we have already considered earlier. But today we have a more exotic scheme that was described in the journal " Radio constructor 03/2007 p. 17. Such a device is able to automatically determine if there is a breakdown in the winding, or reveal the interstitious closure

The indicator of short-circuited turns with their own hands: why does KOROTIT

The basis of this indicator is the principle of self-induction. A sound frequency pulses are served on the tested coil.

Impulse generator assembled on VT1-VT2. and the frequency of it depends on C1-C2. (must be in the sound range).

Transistors VT3-VT. 4 Unleash the generator from the tested coil and provide the desired value of the current pulses that are fed to the coil.

If the coil is properly, impulses of reverse polarity will appear on its outputs. Diode D1 allocates these self-induction of the tested coil and submits them to the database VT5. . Transistors VT5-VT6. Improve self-induction pulses and feed the reinforced signal on the speaker GR.1 .

If there is an intersless closure in the coil - its inductance falls strongly, self-induction EMF will have a minor value, insufficient for opening VT5. and sound speaker GR.1 .

Transistors VT7-VT. 8 are responsible for the work of LEDs HL1  и HL2. . When there is a break in the coil - burns HL2. if there is no cliff - transistors open VT7. VT8. and lights up HL1 , but HL2. Shunt and sweeps.

How to get bibolar food from unipolar - artificial average point One of the largest drawbacks of this scheme is two-polar nutrition.

More practical and convenient to feed the intersless closure tester from the Croon type battery (9 V) and form an artificial average point.

Using a simple scheme, the work of which is described in the book "Stabilizers of voltage and current on IS (C)" Uspensky B. You can get an artificial average point.

The indicator of short-circuited turns with their own hands: why does KOROTIT

Of the parts used in the scheme:

  • operational amplifier: MC34072. (or any other type analog LM393. )
  • Transistors SS8050.  и SS8550. (You can and a weak pair, with a collector's working current of at least 200-300 mA)
  • Electrolytic capacitors 22 μF. with a working voltage 16 B. .

Attention! When adjusting the scheme, in no case should you arrange a CZ with an average point, one of the transistors instantly fails, and also fails.

Indicator of the Mixed Circuit With Your Hands We sketched the sketch of the board in which the feed from the crown is already taken into account, the size of the board is 45x70 mm.

The indicator of short-circuited turns with their own hands: why does KOROTIT

A source: https://rustaste.ru/indikator-mezhvitkovogo-zamykaniya.html

Short-braided turns in the transformer: Description, Schemes

The short-circuited turns in the transformer is a phenomenon that causes a change in the magnetic flux, opposing or currging a constant flow. This is a general function, but also it leads to the fact that the accumulated energy is dissipated in the magnetic pipeline. For some devices, it is important that the phenomena have been detected and deleted.

A short-circuited turn in the transformer: What is it?

A short-circuit defect is an increase in magnetic energy stream. This occurs when the electromagnet is turned on with average transformer voltage. Flow drop is observed when disabling.

Located on two core rods. But depending on the design nodes and the characteristics of the transformer changes.

Its feature is that folded by the main energy flow. The parameter is established towards the backlog, while the angle observed between the primary and secondary currents is reduced. In this case, not only the flow rate changes, but the phase, which is an important indicator. Mandatory use of special mechanisms to determine this angle.

The indicator of short-circuited turns with their own hands: why does KOROTIT

The mechanism of formation of vitkov

The mechanism for formation of twists in the transformer is standard for any type of equipment.

The total flow during passage is divided into the first stream, which is distributed across planes that are not covered by the poles. The second flow of the electromagnet is on the plane, which belongs to square.

The second is formed by EMF, leading to a current pulse. At the same time, a certain value arises, which is determined by inductance.

Simultaneously with the passage of the flow arises the force of attraction. It consists of two components that are shifted over time.

Pulsation (amplitude ratios) is determined by a purely angle of a shear that occurs between two streams in the field of action. The angle never exceeds the value of 90 degrees.

Usually its value lies between 50 and 80 degrees. This is explained by the fact that it is impossible to achieve streaming shift to a straight angle.

Purpose of insulating transformers

What is dangerous for the appearance of short-circuited turns in the winding of the transformer

The appearance on the winding is considered a defect of the equipment that should be eliminated. The electrical scheme indicates that the primary part of the winding is confirmed. The one on which they are, is secondary. To eliminate defects, techniques based on knowledge of the parameters of the arising magnetic bond between the parts of the winding are used.

The indicator of short-circuited turns with their own hands: why does KOROTIT

The pulse voltage effect is inextricably connected not only with a damaged part of the winding. Impact affects the operation of the primary part, which has no defects. The effect of short-circuited contours is primarily in sharp and no cause of voltage jumps. Note that:

  • To eliminate the problem, you need to calculate the parameters of the turn;
  • If the characteristics of the primary and secondary turns are similar, then the voltage jump will be maximum;
  • Identical characteristics of turns lead to an increase in the scattering coefficient.

As a result of the presence of a short-circuited circuit, voltage jumps occur. But this is not the only serious problem that requires consideration and solutions. The secondary winding is affected due to the dissipation of the magnetic flux, there is a short circuit in this part.

The phenomenon threatens their building the structural assemblies of the mechanism and those devices that it feeds (at least simultaneous disconnection from the network or transfers to the atomic mode of operation from batteries). There is also a danger of electric shock.

Of course, the diagnosis of the transformer (mandatory visual and using the instrument) is a mandatory method of safety in production.



How to detect short-circuited turns

Detection should be a paramount task. These negative phenomena are manifested in half cases during self-assembly of the transformer, in most part in the manufacture of contour coils and chokes.

It will identify and eliminate the defect necessarily, since the existing drawback will affect the negative way on the efficiency of the device, will lead to a breakdown, which is hard to fix, causes the risk of an employee serving the device.

The definition occurs at the external features initially. If there are visible changes in technical indicators without reasons for this, cracking is heard, then diagnostics should be diagnosed. The causes of the emergence are the defects of the coil.

For example, the imposition of cross-shit, and not symmetric turns, use of low-quality winding from the unverified manufacturer, damage to the insulation during the work or when the instrument is moved, mechanical damage. But the effective way to find the turn is non-use of electronic devices.

Only with their help you can define the source of the winding damage, identify its characteristics.

Which device is used to detect

The short-circuited turn is not detected using an ohmmeter in standard transformers. Used oscilloscope with great accuracy.

A specialist collects a compact device independently or sets the necessary characteristics on the standard one. Collected according to the scheme using a resistor (resistance of at least 10 ohms), the winding that is subject to the study.

The indicator of short-circuited turns with their own hands: why does KOROTIT

The device for determining short-circuited turns is essentially a sound frequency generator functioning continuously. Responsible for the generation of resists, while establishing a transformer coil to the base of the device, the generation phenomenon for physical reasons will stop. The device will show that there are defects in that it will turn off the LED, will stop working.

Collect the device at home. It will take a ferritic rod, a wire (a certain number of turns is selected), a card sleeve, a LED, several elements for power. As an assembly plane uses a regular fee.

How to check on short-circuited turns toroidal transformer

The toroidal transformer cannot be checked in a standard way. A car generator is used with a frequency of 85 kHz (up to 30 turns). The end of the wire is connected in two inputs that corresponds to the toroid.

After installing the wires in the terminals and the location of the resistor, the amplitude and measurement is set. The presence of a short-circuited turn is stated by distorting the voltage.

A source: https://otransformatore.ru/vopros-otvet/opisanie-shemy-i-proverka-korotkozamknutogo-vitka-v-transformatore/

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