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Transformer Fiber Optic Temperature Measurement/Fiber optic temperature monitoring system/

Fiber optic temperature measurement device for transformer winding in rail transit

Working power supply:AC220V; DC110V; DC220V; (-15%~+10%) (Multiple options available)
working frequency:50Hz or 60Hz (± 2Hz) (AC working power supply)
Measuring range:-30.0 ºC~240 ºC
resolving power:0.1 ºC
measurement accuracy:1% FS (temperature controller level 0.5; sensor level B)
Control error :≤ ± 0.5 ºC
Installation method:Embedded or wall mounted; (Customizable)
Protection level:IP54
Control contact capacity:5A/DC220V or 5A/DC110V or 5A/AC250V; (Customizable)
Fan contact capacity:5A/AC250V; (Customizable)
Temperature compensation range:-19.9 ºC~+19.9 ºC
Supporting fiber optic sensor length:Standard configuration of 5 meters (customizable length)
Number of temperature measurement channels:4 channels (expandable to 12 channels)
Working environment temperature:-20 ºC~+55 ºC
Working environment humidity:<90%
External dimensions:442mm*558mm*142mm(Customizable)
Embedded hole size:442mm*558mm*142mm(Customizable)
External dimensions:413mm * 519mm (embedded installation fixing hole size: 538 * 240)
Wall mounted installation fixing hole size:370mm * 463mm

  • Product Details
  • FAQs

The fiber optic temperature controller for rail transit is a type of temperature controller specially designed for special fields such as subways, locomotives, aviation, etc; Due to the impact current interference of traction current on track circuits in these fields, as well as the interference of unbalanced current and poor traction return current, temperature controllers are required to have good electromagnetic compatibility in these aspects.

Our independently developed fluorescent fiber optic temperature sensor is a new principle temperature measurement device. Its principle is that the fiber optic module emits laser, which is transmitted to the end of the temperature sensing probe through the fiber optic. The rare earth material at the end receives light, and the reflected light is transmitted back to the fiber optic module. The fiber optic module decomposes the temperature information in the reflected light.

This product uses our company’s independently developed fluorescent fiber optic temperature sensor as the temperature sensing element. This temperature sensing element is immune to electromagnetic interference and resistant to high voltage (100KV/fiber to ground lead distance of 0.4m). Fluorescent fiber optic temperature measurement completely cuts off the interference transmitted from the temperature measuring element to the temperature controller from the temperature measurement source. The overall anti-interference ability of the temperature controller is extremely strong, the output contact capacity is large, the functions are complete, the LCD interface is illustrated, the setting is simple, and easy to operate, with reliable EMC and EMI performance.

basic function 1. Provide three-way winding temperature measurement; Automatic/manual start stop cooling fan function; Digital compensation function for display values of each channel; LCD display, LED display light, with operation keyboard; Provide clock function;
2. Provide black box function, which can record temperature data before power failure and historical maximum temperature;
3. Provide transformer door cabinet point opening alarm function:
4. Provide one set of over temperature alarm contacts (one normally open and one normally closed);
5. Provide two sets of over temperature trip contacts (two normally open and two normally closed);
6. Provide one set of iron core alarm contacts (one normally open and one normally closed);
7. Provide one set of remote transmission contacts for the fan (one normally open and one normally closed);
8. Provide one set of temperature controller power-off alarm contacts (one normally open and one normally closed);
9. Provide one set of temperature controller fault alarm contacts (one normally open and one normally closed);
10. Fan fault diagnosis function, and provide a set of fan fault alarm contacts (L function);
11. Iron core temperature measurement function, and provide a set of iron core over temperature alarm contacts (I function):
12. Provide RS485 communication function, communication with time markers, and can receive time synchronization (F function: standard MODBUS-RTU protocol);
Additional features (customizable) 1. Provide 4-8 channels of 4-20mA analog current output function (E function)
2. Local or remote confirmation and reset function for fault information:
3. The communication protocol can use methods such as Profibus, IEC60870-5-103, Ethernet communication, etc;

Standard of Execution:

Production standards JB/T7631-2005″Electronic temperature controller for Transformers”Industry standards
Adoption of accreditation standards: ISO9001:2008International Quality Management System Certification
Pass the test standard: IEC61000-4:1995 International standard
GB/T17626-2008″Electromagnetic compatibility test and measurement techniques”standard
Product Characteristics

Characteristics of temperature controllers for rail transit:
1. The protection level is IP54.
2. The output contact capacity is large.
3. Fiber optic temperature measurement is the first in China and at the international leading level.
4. The temperature controller uses the ARM architecture CPU, which has strong data processing capabilities and stable system performance.
5. Large LCD screen with digital and Chinese display.
The design concept of the circuit board for button operation and LED signal indication display of the temperature controller is modular design, with strong and weak electrical separation to avoid spatial crosstalk.
7. The temperature controller contains a clock chip and an external FLASH, which can be customized for high-capacity, time marked historical data storage

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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