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

Transformer Neutral Gap Protector, Transformer Protector Device, Protector Device for Transformer manufacturer / supplier in China, offering Overvoltage Protector Device, Capacitor Voltage Transformer, Water Cooled High Current Cable and so on.

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Overvoltage Protector Device

FOB Price: Get Latest Price
Min. Order: 1 Piece
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 Phase
  • Frequency: Industrial Frequency
  • Suitable: AC Electrical Equipment
  • Trademark: VILLE INDUSTRY
  • Origin: Ningbo China
  • Current Type: AC
  • Usage: SVC, DBW, JIW
  • Voltage Grade: 110kv,220kv
  • Transformer: Power Transformer
  • Specification: IEC STANDARD
  • HS Code: 8
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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