BWDK-326 Temperature Controller of Dry BWDK-326

BWDK-326 Temperature Controller of Dry BWDK-326

BWDK-326 series temperature controller of dry transformer (Referred to as temperature controller) is an intelligent controller designed especially for safe operation of dry transformer. The temperature controller features adoption of single chip computer technology and utilization of the platinum thermo-resistors embedded in the winding of the dry transformer for detection and display of temperature rise of the transformer windings. It can start or stop the cooling fan automatically for forced air cooling of windings and control over-temperature alarm and over-temperature tripping output so that the transformer will be operated safely.

Introduction

Type selection (arbitrary combination of E, F, G/I and C)

Note: BWDK-326 series are not applicable to the same utilization of G-type and I-type.

Installation instructions (inserted installation)

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An inserted hole is opened on the Transformer cabinet according to the size of the inserted installation hole of the controller.
Insert BWDK-326 Temperature controller into the inserted hole of transformer cabinet.

Wiring diagram example and instructions

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Note 1: When there is door alarm, fault alarm or over-temperature alarm, users can press “ESC” button on the thermostat panel to cancel the buzzer alarm, and such buzzer alarm function of thermostats can be restored 10 minutes later.

Note 2: D25 sensor cable is connected to Pt100 and PTC (type C) signal input; D9 signal cable is connected to RS485 signal (type F) and 4~20mA current signal (type E) output.4

Note 3: the actual definition of the terminal block is subject to the wiring diagram of the product.

Product parameters

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