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Ningbo Ville Electric Co., Ltd.

Protector, Transformer Protector Device, Protector Device for Transformer manufacturer / supplier in China, offering Transformer Overvoltage Protector Device Neatral Gap Protector, 1.6mva S11 Series 35kv Power Transformer with on Load Tap Changer, Lb6-110 Type Current Transformer CT and so on.

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Transformer Overvoltage Protector Device Neatral Gap Protector

FOB Price: US $100-3,000 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $100-3,000/ Piece
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Production Capacity: 50000 Sets/Year
Transport Package: Wooden Cases
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: VLMRD
  • Phase: Three
  • Cooling Method: Oil-immersed Type Transformer
  • Certification: ISO9001-2000, ISO9001
  • Frequency Characteristics: Power Frequency
  • Brand: Ville
  • Suitable: AC Electrical Equipment
  • Trademark: VILLE INDUSTRY
  • Origin: Ningbo China
  • Application: Power
  • Core: Core-type Transformer
  • Winding Type: Two-winding Transformer
  • Usage: Single-phase Transformer, Combined Transformer, Power Transformer, Distribution Transformer
  • Shape of Core: Ring
  • Voltage Grade: 110kv,220kv
  • Transformer: Power Transformer
  • Specification: IEC STANDARD
  • HS Code: 85
Product Description
Transformer neutral gap protector device


110KV and 220KV is the main voltage grades in power supply grid, due to high voltage the neutral point usually grounds solidly or neutral point of some transformers does not ground based on requirements of relay setting and avoiding communication interference for limiting single-phase short-circuit current. By this way, the neutral point would be overvoltage caused by lightning stroke or single-phase grounding faults. Moreover most transformers are graded insulation, so the the overvoltage hazards to neutral insulation is huge. We must set a protective device preventing such accidents from occuring. Transformer neutral gap protector of our company is such a device for it. It is produced strictly as per DL/T620-1997 overvoltage protection and insulation co-ordination of AC electrical equipments, applicable to 110 kv and 220kv power system where transformer neutral point does not ground.
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