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Beijing Synergy Technology Co., Ltd.

Nitrogen Injection Fire Protection, Fire Protection System for Transformer, Nitrogen Injection manufacturer / supplier in China, offering Nitrogen Injection Fire Protection System for Transformer, S N G Fire Fighting Equipment, Sng Quality CO2 Fire Extinguisher and so on.

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Nitrogen Injection Fire Protection System for Transformer

FOB Price: US $100 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $100/ Piece
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Port: Shanghai, China
Transport Package: Wooden Cases
Payment Terms: T/T

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Basic Info
  • Model NO.: SINI-001
  • Trademark: SNG
  • Function: Fire Fighting
  • Origin: China
Product Description
Principle of Extinct Fire:
When the transformer is on fire, the fire detector is activated, the gas relay closes, and the electric breaker switches off. As a result, BPZM-MRD Nitrogen Injection system is operated and the oil drain valve opens to draw off oil. Then nitrogen gas is continuously injected, the large amount nitrogen gas sufficiently cools down the transformer, extinguishes fire, and prevents any re-combustion.
Working Conditions:
1, Fire detector, drain valve, fire protection cabinet could be located outdoor. Control panel should be located indoor. Around the site there should be no violent vibration and shock, no corrosive gas.
2, Ambient Temperature
A) outdoor device (the fire prevention part): -40ºC ~ 60ºC
B) indoor device (the auto-control panel): 5ºC ~ 30ºC
3, Relative Humidity
A) outdoor device (the fire prevention part): ≤95 (@ 20ºC±5ºC)
B) indoor device (the auto-control panel): ≤85 (@ 20ºC±5ºC)
4, Power Source
Working power source:DC220V or DC110V
Explosion Prevention and Fire Extinguishing
The system can extinguishing the fire immediately thro injected the N2 gas into the Transformer Tank.
The Nitrogen can be injected continuously for 30 mins to stir and cool down the
transformer oil, which also isolated the air from the tank.

Transformer Capacity(MVA)≤50>50,≤240>240
Nitrogen Cylinder Volum(L)40604040
Nitrogen Cylinder Quantity1124
Nitrogen Cylinder Initial Pressure(Mpa)15
Nitrogen Pressure after pressure reduction (Mpa)0.6
Nitrogen Volum after pressure reduction(L)1000150020004000
Continuous Nitrogen Injection Time(min)31
Fire-extinguishing time(min)less
Nitrogen Injection Valve Outlet Flow (L/min)32.2548.464.5129
Nitrogen Flow Rate in Nitrogen Injection (Tube(m/s)1.0953.282.194.38
Nitrogen Injection Hole Quantity2246
Nitrogen Injection Flow(L/min)16.2524.232.532.5
Temperature Detector Quantity66812
Temperature Detector Operating Temperature (ºC)130ºC±10%130ºC±10%130ºC±10%130ºC±10%
Oil Drain Tube Diameter(mm)≥DN100≥DN100≥DN125mm≥DN125mm
Nitrogen Injection Tube Diameter(mm)DN25
Quick Discharge Valve Operting Time (s)<1s
Fire Extinguishing Cabinet Operating Temperature(ºC)1:-20ºC~60ºC 2:-40ºC~60ºC (2 means in
high and cold area)
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Ms. Ray Sun
Export Manager
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