Introduction

Model BWY—804 Transformer Thermoregulator is a new generation product derived from Model BWY—802/803 one in compliance with JB/T 6302-92 Standard of Pressure-type Thermoregulator For Transformer issued by The National Machinery Ministry. It is suitable for taking measurement and control of oil temperature in a medium-sized or Large-sized transformer.

The BWY—804 has the following new points:

  1.  Wide scope of application

To meet the need of intelligent control in an unattended transformer house, the BWY—804 can output following controlling signals

(1)  Pt100 platinum resistance signal

(2)  4-20mA direct current signal

(3)  RS232/RS485 communication interface

2. Four sets of switch, which can be set within a whole span, are employed to respectively control over the transformer cooling system, overheating alarming and tripping, etc.

Main technical parameters

1.  Normal operating conditions:(-30~+55

2.  Measuring range:0-150

3.  Measurement accuracygrade 2.0

4.  Bulb and mounting screw size: φ14×150mm;M27×2

5.  Control function

(1)  setting range: adjustable within the whole span

(2)  setting accuracy±4

(3)  switch difference6±2

(4)  rated powerAC 220V/5A

(5)  standard set pointK155  K265  K380  K4120

6.  Ouput: Pt100 platinum resistance signalDC4-20mA, 0-5V or 1-5V signal;

7.  Shielding gradeIP55


BWY(WTYK)-804ATH
Model BWY—804 Transformer Thermoregulator is a new generation product derived from Model BWY—802/803 one in compliance with JB/T 6302-92 Standard of Pressure-type Thermoregulator For Transformer issued by The National Machinery Ministry. It is suitable for taking measurement and control of oil temperature in a medium-sized or Large-sized transformer.
  • Range:  0~150℃

  • Accuracy: 2.0

  • STANDARD PERSET VALUE OF SWITCH: K1=55℃  K2=65℃  K3=80℃  K4=120℃

  • Output signal: Pt100


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Title:BWY(WTYK)-804ATH