Page 13 - YINGMING POWER(HIGH & LOW VOLTAGE SWITCHGEARS)

HXGN15-12(SF6)
UNIT TYPE AC METAL-ENCLOSED
RING NETWORK SWITCHGEAR YINGMING POWER
Conditions of Use

◆ Ambient temperature: upper limit +40℃ , lower limit -25℃ ;
◆ Altitude: The altitude does not exceed 2000m;
◆ Relative temperature: the daily average is not more than 95%; the monthly average is not more than 90%;
◆ Ambient environment: The surrounding air is not obviously polluted by corrosive gases or flammable gases, water vapor, etc.
◆ No frequent and severe vibrations.

The main technical parameters

Project Unit Parameter

Rated voltage kV 12

Rated frequency Hz 50

Main bus rated current / fuse maximum rated current A 630，125

Main circuit, ground loop rated short time withstand current kA/S 20，3

Main circuit, ground loop rated peak withstand current kA 50

Main circuit, ground loop rated short circuit closing current kA 50

Load switch full capacity breaking number Times 100

Fuse breaking current kA 31.5，40

Rated closed loop breaking current A 630

Rated transfer current A 1600

Mechanical life Times 2000

1 min power frequency withstand voltage (peak) relative to the ground / isolation fracture kV 42，48

Lightning impulse withstand voltage (peak) phase, ground / isolation fracture kV 75，85

Secondary circuit 1min power frequency withstand voltage kV 2

Protection class IP3X

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