Dry Type Transformer Temperature Controller

Dry Type Transformer Temperature Controller

BWD series dry type transformer temperature controllers Summary&application BWD series dry type transformer temperature controllers use 3-4pcs Pt-resistances as the sensor, can measure three phase winding and core temperature of the dry type transformer, to realize temperature monitoring and...

Product Details

BWD series dry type transformer temperature controllers

Summary&application

BWD series dry type transformer temperature controllers use 3-4pcs Pt-resistances as the sensor, can measure three phase winding and core temperature of the dry type transformer, to realize temperature monitoring and control. It can far-transmit the measured data by adding RS485(or RS232) communication interface or analog quantity transmitting output interface. The meter conforms to the standard JB/T7631-2005《electronic temperature controllers used for the transformers》.


1. Main functions and characteristics:

◆Modular structure design for current, etc. with SMT production process.

◆Digital calibration, easy installation, high cost performance.

◆LED display, button settings and easy operation.

◆It is characterized with perfect self-checking and protection function.

 

2. Model composition and representative meanings:

3.jpg


3.Model specification and selection description:

(Unit: mm)

Model

Temperature measuring point

R
Communication

DOutput voltage

L
Output current

M

Door interlock trip

J

2-way alarm
2-way trip

F
3-phase fan

External size

Display mode

BWD-3KS

3

 

 

 

 

 

 

160×80

LED display

BWD-3KRS

3

 

 

 

 

 

BWD-3KLS

3

 

 

 

 

 

BWD-3KDS

3

 

 

 

 

 

BWD-3KMS

3

 

 

 

 

 

BWD-3KJS

3

 

 

 

 

 

BWD-3KFS

3

 

 

 

 

 

BWD-3KRLS

3

 

 

 

 

BWD-3KRDS

3

 

 

 

 

BWD-3KRMS

3

 

 

 

 

BWD-3KDMS

3

 

 

 

 

BWD-3KLMS

3

 

 

 

 

BWD-3KRJS

3

 

 

 

 

BWD-4KS

4

 

 

 

 

 

 

BWD-4KRS

4

 

 

 

 

 

BWD-4KLS

4

 

 

 

 

 

BWD-4KDS

4

 

 

 

 

 

BWD-4KMS

4

 

 

 

 

 

BWD-4KJS

4

 

 

 

 

 

BWD-4KFS

4

 

 

 

 

 

BWD-4KRLS

4

 

 

 

 

BWD-4KRDS

4

 

 

 

 

BWD-4KRMS

4

 

 

 

 

BWD-4KDMS

4

 

 

 

 

BWD-4KLMS

4

 

 

 

 

BWD-4KRJS

4

 

 

 

 


Note: 

  • indicates the intrinsic functions of the instrument 


4. Main technical performance and parameters:

Item

Type index

Accuracy

Class 0.5

Display mode

LED display, display A,B,C three phase temperature in turn in 4s interval or fixed-point display the max. temperature of each    phase, the resolution is 0.1℃

Measuring range

(-50~200) ℃

Output mode

Over temperature alarm output;
Trip output;
Sensor fault output;
Relay contact capacity AC 250V/10A.

Starting fan

Control 4~6pcs fans, relay contact total capacity: AC 250V/20A.

Analog quantity output

Output 3-way 4~20mA(or 0~5V) signals, respectively corresponding A,B,C phase temperature 0~200℃ or output 1-way 4~20mA(or 0~5V) signal, corresponding three phase temperature max. value 0~200℃.

Communication

RS485 or RS232 serial communication interface, adopt Modbus-RTU communication protocol.

Work power supply

AC220V±10%, 50Hz/60Hz, consumption<5VA


5. External  and installation size:
(Unit: mm)

Model

Panel size

Shell size

Cutting size

BWD-S series

160×80

150×74.5×135

153×77

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