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Liaoning Jinli Electric Power Electrical Appliance Co.,Ltd

Oil Filter Voltage Regulating Tap Changer

Oil Filter Voltage Regulating Tap Changer

O il Filter Voltage Regulating T ap C hanger An electric power system, operating as intended, is a prime illustration of slow dynamics wherein long term trends may result in less than optimal system operation. Notably, changes in the system voltage level or power losses may occur over periods of...

Product Details

Oil Filter Voltage Regulating Tap Changer

An electric power system, operating as intended, is a prime illustration of slow dynamics wherein long term trends may result in less than optimal system operation. Notably, changes in the system voltage level or power losses may occur over periods of minutes or hours to an extent where action is required to improve on those parameters. Used in concert, the switching of shunt capacitors and transformer operating tap position are the principal means of maintaining proper performance in response to daily load cycles.

Very often it is required that the transformer secondary voltage be controlled in order to hold a pre-set value within a certain tolerance. This is usually accomplished by the use of a special assembly which causes a contact to move on a dial switch in a manner to place more or fewer transformers turns in the circuit and thereby regulate the voltage in a step-change manner. This assembly is called a Load Tap Changer (LTC) due to its ability to change switch positions (taps) with load current flowing.

Model Explanation
 SYTXY - □( )/□-□(YC)
    S :  three-phase
    Y :  on load
    T :  capacity regulating
    X :  star-delta switching
    Y :  voltage regulating
    □:  Max. capacity
    ( ):  Min. capacity
    □:  voltage of high-voltage site
    □:  voltage regulation positions
    (YC): permanent magnet controlling devices

Main Technical Data

Application Scope

Under 630KVA and 10KV oil-immersed capacity & voltage regulating transformer

Connection Model

 

High-voltage Site

Low-voltage Site

High-capacity

Delta connection

Star connection

Low-capacity

Parallel connection

Series connection

Three-phase Max. Rated Current  

315KVA

30A

300A

630KVA

60A

550A

Max.Rated Voltage

5773V

Max.Voltage of Device Um

10KV

Tap Positions

7 or others

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