Product Overview

The BWY2-804 / BWY2-806 Type II Transformer Oil Temperature Controller is designed for monitoring, indicating and controlling oil temperature of oil-immersed transformers. It is a Type II transformer oil temperature instrument for on-site indication, alarm control, cooling system control and remote temperature monitoring.

This series adopts pointer-type temperature indication and can directly display transformer oil temperature on site. The instrument can be configured with 4 or 6 adjustable control switches for transformer cooling system control, temperature alarm and protection control.

According to different configurations, the product can 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, PLC systems or automation control systems.

The product can also be used with the BL-FC oil temperature composite sensor according to project requirements. The BL-FC sensor can be used as a matching component for transformer oil temperature detection, signal collection and system installation. Detailed specifications should be confirmed according to the selected project configuration.

Key Features

1. Type II instrument for oil-immersed transformer oil temperature monitoring and control.
2. Local pointer-type temperature indication for on-site inspection.
3. Available with 4 or 6 adjustable switch groups.
4. Switch settings can be adjusted freely within the full measuring range.
5. Supports Pt100 resistance signal output for remote temperature acquisition.
6. Can be connected with TC-152 temperature transmitter for 4-20mA output.
7. Can be used with BL-FC oil temperature composite sensor according to project requirements.
8. Suitable for temperature alarm, cooling system 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 with stable signal output.
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. Maintenance can be performed without power shutdown.
18. IP55 protection grade for industrial operating environments.
19. Standard 6m capillary tube, with customized length available upon request.
    

Technical Specifications

BL-FC Oil Temperature Composite Sensor

Function Description

Oil Temperature Indication

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

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.

BL-FC Sensor Matching

According to project requirements, the product can be used with the BL-FC oil temperature composite sensor for oil temperature detection, temperature signal collection and system installation. The final configuration should be confirmed according to transformer structure, installation method and monitoring system requirements.

Cooling System Control

When the oil temperature reaches the preset value, the controller can output a control signal to start or stop the transformer cooling system.

Temperature Alarm

When the transformer oil temperature exceeds the preset alarm value, the controller can output an alarm signal.

Protection Control

When the oil temperature exceeds the safety limit, the controller can provide a protection control signal to support transformer safe operation.

Multi-stage Control

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

Model Code Description

Common Configurations

Applications

The BWY2-804 / BWY2-806 Type II Transformer Oil 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. Electrical control cabinets
7. Transformer cooling control systems
8. Transformer oil temperature monitoring systems
9. Transformer temperature alarm systems
10. Power equipment remote monitoring systems
11. Unattended transformer monitoring systems
12. Transformer oil temperature detection systems using BL-FC oil temperature composite sensor
    

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 Phi14 x 150mm, and the mounting thread is M27 x 2.

If the BL-FC oil temperature composite sensor is required, please provide the application equipment, mounting method, signal output requirement and monitoring system requirement when sending an inquiry.

Customized output signal, switch quantity, measuring range, capillary tube length, protection type and power supply 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: BWY2-804 / BWY2-806
2. Output signal: Pt100 / 4-20mA / Pt100 and 4-20mA
3. Whether TC-152 temperature transmitter is required
4. Whether BL-FC oil temperature composite sensor is required
5. Switch quantity: 4 groups / 6 groups
6. Measuring range: -20-140C / 0-160C
7. Capillary tube length: 6m / customized length
8. Mounting thread: M27 x 2
9. Protection type: TH / TA / T
10. Application: oil-immersed transformer / power transformer / distribution system
11. Order quantity
12. Destination country or region