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Dry Type Transformer Temperature Controller/Temperature Controller/

Dry type transformer temperature controller BWDK-PQ201

Temperature range:-30.0℃~240.0℃

Ambient temperature:-20ºC~+55ºC

Ambient humidity:<95% (25ºC)
Working voltage:AC 220V (+10%,-15%)

Working frequency rate :50Hz OR 60Hz(±2Hz)

Measurement accuracy :±1%FS(Thermostat level 0.5,Sensor class B)

Resolution ratio :0.1ºC

Fan output total capacity :5A/250VAC

Control output capacity :5A/250VAC;5A/30VDC(resistivity)

Power dissipation:≤8W

Production standards:JB/T7631-2005 Electronic temperature controller for Transformers”Industry standards

Adoption of accreditation standards:ISO9001:2008 International Quality Management System Certification

Pass the test standard:IEC61000-4:1995 International standard
GB/T17626-2008 Electromagnetic compatibility test and measurement techniques”standard

  • Product Details
  • FAQs

The temperature controller for dry-type transformers is an intelligent controller designed specifically for the safe operation of dry-type transformers. The temperature controller adopts microcontroller technology and uses the platinum thermistor embedded in the dry-type transformer winding to detect and display the temperature rise of the transformer winding. It can automatically start and stop the cooling fan to force air cooling of the winding, avoiding or reducing faults caused by high temperature in the transformer. It can also control the output of over temperature alarm and over temperature trip to ensure that the transformer operates in a safe state, thereby extending the working life of the transformer.


Product Selection:

model function
  1. Monitor up to three dry-type transformer windings;
  2. Display maximum temperature;
  3. Built-in fan control, fan exerciser;
  4. Alarming function and relay output control;
  5. Trip function and relay output control;
  6. Automatic fault detection function;
  7. Historical record function;
  8. Range in temperature revise;
  9. Self-inspection;
  10. Switch input judging function.
BWDK-PQ201E 4-20mA output for integration with SCADA systems
BWDK-PQ201F RS485 or RS232 serial communication function.
BWDK-PQ201G An additional sensor is added to measure the ambient temperature
BWDK-PQ201I An additional sensor is added to measure the temperature of silicon steel sheet
BWDK-PQ201L Fan phase failure
BWDK-PQ201H Increase environmental humidity measurement
BWDK-PQ201C PTC150 thermistor combined with PT100 for over temperature trip interlock control; PTC150 and PTC130 thermistors combined with PT100 for over temperature trip interlock control;
BWDK-PQ201TH Three protections (anti mold, anti moisture, and anti salt spray)

Example: BWDK-PQ201F, PQ represents the extended embedded temperature control box, 2 represents the AC220V working power supply, and 3 represents the AC380V working power supply, F represents function code (RS485 communication)
The function codes can be combined according to the requirements, in the order of E F、G、I、L、H、C、TH, If it only contains L H. C. TH function, D needs to be added before the code name.

If there are other special technical or functional requirements, such as Ethernet communication Profibus communication, multi-channel temperature measurement, fiber optic temperature measurement, etc. can all be contacted with us.

Finished product drawing and installation dimension diagram of BWDK-PQ embedded temperature control box (extended)

Appearance of BWDK-PQ embedded temperature control box (extended) product
External dimensions: 324x200x85mm (length x width x height)

BWDK-PQ installation method: embedded
Embedded installation hole size: 182mm x 296mm

Dry type transformer temperature controller

Application scenarios
Customized OEM solutions for your industry,
We offer original equipment manufacturer (OEM) solutions in multiple vertical markets,
These markets rely on high-quality, stable, and carefully designed technologies tailored to their industries.
The payment term: We accept TT,30% deposit and 70% balance against copy of BL.
The delivery time: Usually it will take about 15-20 days.
The standard of package: Usually use strong plywood case for protection.
The logo: lf you have good quantity, it absolute no problem to do OEM.
Our market: our products are popular in Indonesia, Philippines, Russia, USA, Middle East and soon. Some of them are our regular customers and some of them are developing. We hope you canjoin us and make mutual benefit from our cooperation..
Warranty: in 12 month since BL date.
Quick response in before sales period help you got order.
Excellent service in production time let you know each step we made.
Reliable quality solve you after sale headache.
Long period quality warranty ensure you can buy without hesitate.
1. One-stop supplier globally.
2. More than 13 years professional experiences in electrical appliance industry.
3. We offer professional online technology support for perfecting your electrical solution free
4. Experienced sales service and suggestion.
5. All the products with accessories under strict quality control and final inspection before shipping.
6. We can assure the powerful competitive price and reliable quality products.
7. Most competitive shipping rate from our own shipping forwarder.
8. Warranty assurance: 12 month
9.Whatever big or small order, we can provide you one-to-one service!




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