Winding and winding probe

To protect all types of motors, there are temperature sensors for the winding and winding. 

What are temperature sensors for electric motor windings?

These are wired temperature sensors protected by heat shrink tubing. 

These sensors are distinguished by their high electrical resistance. We offer PTC (Positive Temperature Coefficient) probes made in accordance with DIN VDE V098-1-401 standards. They consist of resistors based on semiconductor materials. Thus, their level of electrical resistance increases as the temperature exceeds the nominal operating value (this is the threshold effect). 

The winding and winding probe has many advantages for professionals in the electronics sector: 

  • the precision of its operating threshold; 
  • ergonomics thanks to its small size; 
  • low thermal inertia; 
  • advantageous cost.
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What are winding and winding probes used for?

Winding and winding probes are used in electronics and electrical engineering. 

Their most common application is the measurement of temperature in the windings of electric motors and transformers. They can also be used for protection against winding overloads, monitoring and limiting temperature regulation in measurement techniques or controlling the temperature of power semiconductors, bearings of rotating machines, etc. 

In addition to the products on this page, Guilcor also offers the production of specific products according to your needs (three-phase, asynchronous, single-phase, synchronous motor, etc.) 

How to position the probes for motor control?

For three-phase motors, here are some recommendations: 

It is preferable to implant the leads before winding. Moreover, we advise you to leave a space in the middle of the winding head in order to deposit the temperature sensor. 

Each winding must be equipped with a probe, to be placed at the level of the hottest point (generally opposite the fan). As such, good thermal contact between the two is required. To do this, do not hesitate to squeeze the winding wires. 

Connect the connecting wires to the free terminals. 

There must be parallelism between the conductors of the probe and the wires of the winding

In the event of overheating, the motor will be disconnected from the mains. It will be connected to it again when it cools down. 

Good to know: For test procedures, the measurement voltage must not exceed 2,5V direct current. Beyond that, there is a risk of overheating the sensor. 

Where can I find the winding and winding probes?

For professionals in the electronics sector, it is essential to check the correct operation of the motor. For this purpose, Guilcor offers several winding and winding probes.

You can then choose your sensor according to your needs (single, double or triple, cable length, temperature range, etc.). 

Once you have found the model that suits you, do not hesitate to contact us for a tailor-made offer. Then, we guarantee you a fast delivery in France and abroad. 

Basic Parameters of Heat Shrink Sleeve Insulated Temperature Sensors:

Detection element: Pt 100, Pt 1000, Ni 1000, NTC, PTC, KTY, other as requested

Operating temperature range: temperature class H -20 ° C to 200 ° C

Connecting wires: Teflon FEP or PFA 0,22 mm 2

Connection: 2 wire, 3 wire or 4 wire

Certificate for ATEX probe on request.

Probe for insertion into windings, rotating machines, transformers or other applications