Product Overview

The BWR2-04 / BWR2-06 Type II Transformer Winding Temperature Controller is designed for monitoring, indicating and controlling winding temperature of oil-immersed transformers. It is a Type II transformer winding temperature instrument for on-site temperature indication, alarm control, cooling fan control and remote temperature monitoring.

Based on the additional temperature rise principle, the product reflects transformer winding temperature by combining oil temperature measurement, transformer load current compensation and temperature rise calculation.

This series can be used with the BL-F composite transmitter for temperature rise sensing and signal transmission. The BL-F composite transmitter can receive transformer CT secondary current and provide Pt100 resistance signal output. It can also be connected with the TC-152 temperature transmitter to provide 4-20mA standard current signal output for secondary instruments, remote monitoring systems or automation control systems.

With compact structure, stable signal output, adjustable switches and IP55 protection, the BWR2-04 / BWR2-06 Series is suitable for power transformers, oil-immersed transformers, substations and power distribution systems.

Key Features

1. Type II transformer winding temperature instrument for oil-immersed transformers.
2. Designed for transformer winding temperature monitoring, indication and control.
3. Can be used with BL-F composite transmitter.
4. Supports Pt100 resistance signal output for remote temperature acquisition.
5. Can be connected with TC-152 temperature transmitter for 4-20mA output.
6. Available with 4 or 6 adjustable switch groups.
7. Switch settings can be adjusted freely within the full measuring range.
8. Suitable for alarm control, cooling fan control and protection control.
9. High-frequency welding process helps ensure sealing performance.
10. Mechanical fatigue-resistant structure for stable long-term operation.
11. Multiple output signal options are available.
12. Temperature transmitter output adopts photoelectric isolation with 2000V isolation voltage.
13. Lightning protection circuit design for power applications.
14. Integrated mechanical and electrical design for convenient installation and maintenance.
15. Multi-coil spring tube technology and bimetal ambient temperature compensation.
16. Low error between the instrument body and remote monitoring system.
17. IP55 protection grade for industrial operating environments.
18. Standard 6m capillary tube, with customized length available upon request.
    

Technical Specifications

BL-F Composite Transmitter Specifications

Function Description

Winding Temperature Indication

The controller provides pointer-type indication of transformer winding temperature, helping operators check transformer operating status on site.

Temperature Rise Compensation

With the BL-F composite transmitter, the controller can receive transformer CT secondary current and compensate temperature rise according to transformer load conditions.

Remote Signal Output

The product supports Pt100 resistance signal output and can be connected with the TC-152 temperature transmitter to provide 4-20mA standard current signal for remote monitoring systems, secondary instruments, PLC systems or automation control systems.

Alarm Control

When the transformer winding temperature reaches the preset value, the controller can output an alarm signal.

Cooling Fan Control

The controller can start or stop the cooling fan according to the preset temperature point.

Protection Control

When the temperature exceeds the safety limit, the controller can provide a protection output signal for transformer safety control.

Multi-stage Control

With 4 or 6 adjustable switch groups, the product can meet multi-stage alarm, fan control and protection requirements.

Model Code Description

Common Configurations

Applications

The BWR2-04 / BWR2-06 Type II Transformer Winding Temperature Controller is widely used in:

1. Oil-immersed transformers
2. Power transformers
3. Transformer substations
4. Power distribution systems
5. Industrial power equipment
6. Transformer cooling control systems
7. Transformer winding temperature monitoring systems
8. Transformer temperature alarm systems
9. Power equipment remote monitoring systems
10. Transformer temperature control applications requiring CT secondary current compensation
    

Installation and Customization

The standard capillary tube length is 6 meters. Other lengths can be customized according to project requirements. The temperature bulb size is Phi15 x 150mm, and the mounting thread is M27 x 2.

The BL-F composite transmitter mounting thread can be M27 x 2 or M33 x 2. The temperature bulb size is Phi15mm, and the insertion depth should not be less than 150mm.

Customized output signal, switch quantity, measuring range, capillary tube length, mounting thread, protection type and CT input current requirements can be confirmed according to the actual application.

Ordering Information

To help us recommend the correct model, please provide the following information when sending an inquiry:

1. Required series: BWR2-04 / BWR2-06
2. Output signal: Pt100 / 4-20mA / Pt100 and 4-20mA
3. Whether BL-F composite transmitter is required
4. Whether TC-152 temperature transmitter is required
5. CT secondary output current range: 0.5A-5.0A
6. Switch quantity: 4 groups / 6 groups
7. Measuring range: 0-160C / -20-140C
8. Capillary tube length: 6m / customized length
9. Mounting thread: M27 x 2 / M33 x 2
10. Application: oil-immersed transformer / power transformer / distribution system
11. Order quantity
12. Destination country or region