Email:i-trade1@lnjldq.comLiaoning Jinli Electric Power Electrical Appliance Co.,Ltd

Liaoning Jinli Electric Power Electrical Appliance Co.,Ltd

Transformer Switch Oil-Immersed on-Load Tap Changer

Basic Info

  • Model NO.: SYXZZ

  • Structure: Single-column Disconnector

  • Operation: Automatic

  • Movement Mode: Vertical Rotary Type

  • Grounding: Single Ground

  • Run: Vertical Rotation

  • Brand: Jinli Tap Changer

  • Connection Method: Y,D

  • Trademark: Jilni

  • Specification: IEC CE, ISO

  • HS Code: 8535900090

  • Type: High-voltage

  • Installation: Indoor High-voltage

  • Grounding Mode: Not Grounding

  • Number of Poles: Three Pole

  • Series: Single-Stage

  • Switching Mode: Single Throw-in

  • Certification: ISO, RoHS, CE, ISO9001

  • Rated Voltage: 35kv

  • Transport Package: Wooden Cases

  • Origin: Liaoning

Product Description

Transformer switch Oil-Immersed on-Load Tap Changer


On Load Tap Changer is developed as a high quality and high-tech product through several
years of technical creativity and experience of Jinli. Since it keeps part of structure that
operated and validated for many years and combines with Jinli's creativity in structure design,OLTC improves the reliability of long-term usage.

The operating condition of OLTC

a. The temperature of oil in which the tap changer operates is - 25ºC ~ 100ºC .
b. The ambient temperature under which the tap changer operates is - 25ºC ~ 65ºC .
c. The vertical inclination level of the OLTC on the transformer towards ground level should not
exceed 2%.
d. The operation site should be free from serious dust and other explosive and corrosive gases.

Mechanical operation principle of the tap changer

The operation of tap changing begins with the electric motor of the motor drive unit. The driving
force is transmitted to the bevel gear box through vertical driving shaft, and then transmitted to
reducer on the top cover of the tap changer through horizontal driving shaft. The output shaft of
this mechanism drives the insulation shaft. Through turning of the main insulation shaft, it drives the operation of main driving system of tap changer. One is transmitted to the energy storage mechanism of the diverter switch (then the energy released by the energy storage mechanism will drive the diverter switch operation). The other is transmitted to Geneva wheel mechanism of tap selector. The rotation of Geneva wheel makes the odd and even moving contact of tap selector to change the operating position.


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