Gold Member Since 2007
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Ningbo Ville Electric Co., Ltd.

Current Transformer, Transformer, Protect Current Transformer manufacturer / supplier in China, offering Oil Immersed Inverted Current Transformers, 230kv Auto Power Transformer / Power Distribution Transmission /Power Transformer, Gas Insulation Metal-Clad Switchgear Gis and so on.

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Oil Immersed Inverted Current Transformers

FOB Price: US $1,000-4,000 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $1,000-4,000/ Piece
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Port: Ningbo, China
Production Capacity: 50000 Sets/Year
Payment Terms: L/C, T/T, D/P, Western Union

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Basic Info
  • Model NO.: LVB
  • Type: Current Transformer
  • Operation Condition: Outdoor
  • Winding Form: Multilayer Honeycomb Type
  • Installation: Active Type
  • Voltage Transformation Principle: Photoelectric Type
  • Cooling Method: Dry-Type Transformer
  • Trademark: VILLE INDUSTRY
  • Specification: IEC CE, ISO
  • HS Code: 8504220000
  • Application: Instrument
  • Phase: Single
  • Usage: Protection, Measurement
  • Insulating Medium: Insulating Gas
  • Magnetic Circuit Structure: Combined Type
  • Coil: Core-Type Transformer
  • Winding Type: Separated Winding Transformer
  • Transport Package: Wooden Case or as Per Requirement
  • Origin: Ningbo China
Product Description
40.5kV - 550kV Current Transformer
LVB (T) series current transformer has an inverted structure with oil-immersed paper insulation (Please see the left figure).
It is connected in series with electric energy measurement, measuring, relay protection and transient protection functions.
Primary coil has a through-type conducting rod structure with good dynamic and thermal stability; its maximum thermal
current can be up to 63kA/3s (when primary coil is connected in series).
Primary coil passes through the center of secondary coil without flux leakage. Measurement precision can be up to 0.1and
0.2S grades.
Secondary coil is fixed in an aluminum shielded-case by casting organic materials; secondary measurement and
protection circuits cannot be damaged by insulation breakdown.
Optimal capacitor screen bushing is made of a complete piece of imported broadsheet cable paper; it is coiled by an
automatic wrapping machine which is controlled by a computer with high performance. It has a technological de-centrality
and an excellent insulation property. Partial discharge test is carried out under power frequency test voltage.
Use the automatic vacuum drying treatment system produced by LEYBOLD in Germany, carry out pressure-changing
vacuum drying treatment and oiling after a product is assembled completely, and all insulation materials are imported from
foreign countries. All these ensure that the dielectric dissipation factor of complete product tan is less than 0.3%.
External insulation uses a porcelain cover with high strength, optimal surface field intensity together with lower field
intensity of internal bushing make the porcelain cover avoid explosion.
Secondary outlet box is a complete structure by casting the aluminum alloy; its sealing structure meets the requirement
of IP55, which is dust proof, water proof and air permeable; secondary terminal for wiring uses Phoenix special terminal; it
is more convenient for operations such as plug-in, pull-out and wiring etc.
Connection between components uses argon-arc welding, fill in high pressure nitrogen to detect leakage after assembly
is complete, so oil penetration and oil leakage caused by oil-immersed products are resolved at root.
Use an aluminum alloy cast case, all components including the base, connection box, stainless steel expander, and
nameplate etc do not rust forever.
It is light and handy with a small volume and light weight.
This product is free-maintenance.
Oil Immersed Inverted Current Transformers

Oil Immersed Inverted Current Transformers
Oil Immersed Inverted Current Transformers

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