1. Aluminum alloy casting material G-AlSi7Mg, G-AlSi8Cu3

2. General tolerances according to DIN ISO 2768-2:89.

3. Casting parts should be gas-tight. Leakproofness test with compressed air pressure 5 ATM for 10 min.

4.SF6 Gas annual leakage rate is <0.5%

EN 1706 AlSi7Mg0.3 T6/alloy AK7(A/19) 1583-93/ 444.0 /A04440 / EN AC-42000/Al-Si7Mg aluminium alloy foundry-precision castings-CNC machining-leak testing-painting

Aluminum casting enclosures|tank | flanges and other AL cast parts manufacture for

POWER TRANSFORMER
1.Oil-immersed Power Transformer (35~500kV 6.3~300MVA)
2.Mobile Transformer directly connected to GIS , self-cooling, lightweight designed with aluminum tank
3.Furnace Transformer (up to 110kV, up to 70MVA)
4.Rectifier Transformer (up to 35kV)

GIS
ZF28-420 TYPE SF6 GAS INSULATED SWITCHGEAR
72.5-550kV HYBRID GIS INSULATED SWITCHGEAR
LW28 (A) TYPE 72.5-550 SF6 DEAD TANK CIRCUIT BREAKER

AIS
Live Tank Vacuum Circuit Breakers （40.5 kv）
Center- breaker disconnectors GW4（up to 550kV）
LVB(T) series oil-immersed current transformer(Live tank)

NEUTRAL EQUIPMENT
XHK-Ⅱ Automatic tuning Arc Suppression Coil Device
ENGR Neutral Earthing Resistor

POWER QUALITY TREATMENT EQUIPMENT
Capacitor
Reactor
High voltage statcom
Low voltage statcom
Low voltage APF

TEST EQUIPMENT