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Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: Sihu
  • Model Number: LVQB-220W1
  • Usage: Current
  • Phase: Single, Single
  • Coil Structure: Toroidal
  • Coil Number: Optional
  • Rated Voltage: 220kV
  • Highest Voltage: 252kV
  • Rated Dynamic Current: 79kA
  • Arcing Distance: more than 1010mm
  • Creepage Distance of Outer Insulation: more than 2520mm
  • Power Frequency Withstand Voltage: 460kV
  • Rated Lightning Imulse Withstand Voltage: 1050kV
  • Manufacturing Standard: IEC60044-1:2003, GB1208-2006
  • Color: White

Packaging & Delivery

Packaging Details Goods are packed in wooden cases, with foam inside for protection
Delivery Time Shipped in 10 days after payment

LVQB-220W1   220kV CT VT SF6 Gas Insulation Inversion Type High Voltage Transformer

Product Description   

1. Possessing those advantages of light structure, oil-free, gas-free, porcelain-free, fire-proof and explosion-proof etc, it has been serviced in current measurement and relay protection in power system at the rated voltage of 35 kV. 

2 Technical Parameters for LGB-35W (1~3) Current Transformers

2.1 Rated voltage 35 kV

2.2 Highest voltage for equipment 40.5 kV

2.3 Rated primary current 50 A~4000 A

2.4 Rated secondary current 5 A or 1A

2.5 Rated frequency 50 (60) Hz

2.6 Rated output

20~40VA (If any other rated output required, We can satisfy it.)

2.7 Accuracy class and accuracy classes combination

Steady accuracy classes are 0.2S, 0.2, 0.5S, 0.5, 5P, 10P, PR and PX; transient accuracy classes are TPS, TPX, TPY and TPZ. There are 1~6 pcs secondary windings in a CT.

2.8 Instrument security factor (FS) of measuring class 5 or 10

2.9 Accuracy limit factor (ALF) of protective class 5, 10, 15, 20, 30 or 40

2.10 Rated continuous thermal current Icth 1.2In

Packaging & Shipping

1 The voltage transformers are packing with wooden packages, and must always stand up according to the direction mark of the packages (except for the 220kV current transformers, they are always packing and transport by lying down).

2 You must remove the wood plates of the top and obverse when you open the package, and then dismantle the 4 pcs M16 bolts which fix in the frame of the package, lift up the voltage transformer vertically and slowly from the package.

3 The clients must check the packages when they receive the voltage transformers, if a package has been broken, they must open the package to check the product together with the forwarder, note down the process and send to the manufacturer.



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Our Services

Pre-sale Service

Quick response: We promise to quote you the best price within 24h.

 Professional customized design: We have a professional team to meet any of your requirements. 

Service During Sale

Any consultation about the production progress, delivery time and other kind of products will be received warmly and timely. 

After-sale Service 

Good after-sale service: Any consultation and problem will be received warmly.

18-month warranty: Product can be repaired, returned and exchanged if problem occurs within warranty period.

Company Information

  Guangdong Sihui instrument voltage transformers have a full range of indoor or outdoor, as well as single phase or three phases. Our voltage transformers are widely used in various switchgears of power grid, power plants, substations, railway, and coal mining industries and so on. 

· For epoxy resin insulated low voltage and medium voltage VTs, we have fused type, V-connection type, plateau type, pole-mounted type and post type and so on; For high voltage VTs, we have SF6 inductive voltage transformer, SF6 capacitor voltage transformer and oil- immerged voltage transformer and so on.


1.  Do you provide products for world renowned companies?

     We are one of the suppliers of ABB Groups and Schneider. 

2. What are your main markets?

    Our main markets are Asia, Europe, America and Australia. 

Company Profile




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China (Mainland) | Manufacturer, Trading Company
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