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 HXGN-12 AC Metal enclosed 12kv Ring Main Unit

 HXGN-12 AC Metal enclosed 12kv Ring Main Unit

HXGN-12 AC Metal enclosed 12kv Ring Main Unit

HXGN / -12ZF ( R ) Fixed metal closed switchgear Product Description HXGN / -12ZF ( R ) Fixed metal closed switchgear is suitable for use in AC. 50HZ , 12KV power system, as breaking load and short circuit current or/and closing short circuit current
Published in2018-08-03
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Detailed description

HXGN / -12ZF ( R )  Fixed metal closed switchgear

Product Description

HXGN / -12ZF ( R )  Fixed metal closed switchgear is suitable for use in AC. 50HZ , 12KV  power system, as breaking load and short circuit current or/and closing short circuit current . The ring main unit is equipped with manual and electric spring mechanism to operate load break switch, grounding switch and lsolating switch.


It is a new product self-designed and self-developed by introducing oversea advanced techniques and the requirements of rural and urban power network reform. The core parts are load switch, switch-fuse combinations or circuit breaker.


Application

Itis applicable tothering network or terminal power supply system withthree-phase AC 50Hz, rated voltage of 12kV, rated current of up to 630A. It is widely used inthe load center powder distribution station of urban residential area, high-rise building, large public buildings, factories and enterprises as power receiving and distribution or overload protection, short circuit protection; As a ring network power supply unit and terminal equipment, it plays role in the power distribution, power controlling and electrical equipment protection, so it is widely installed in prefabricated substations.

Normal Conditions

Ambient air temperature : -5°C ~ +40°C; Daily average temperature(Within 24h): ≤+35℃ Altitude:≤1000m; Relative humidity: within 24h, daily average value ≤ 95% , daily average vapor pressure≤ 2.2KPa; monthly average value ≤ 90%, monthly average vapor pressure≤ 1.8KPa Ambient air is not significantly polluted by dust, smoke, corrosive and / or flammable gas, vapor or salt contamination.


Special Conditions


If the switchgear will be used in conditions that exceed the normal environmental conditions, users should consult with the manufacturer.

Product Parameter

Item(Unit)

Data

Load Switch

Switch-fuse Combinations

Rated Voltage(kV)

12

Rated Current(A)

630

125

Rated Frequency(Hz)

50

Rated Short-time Power Frequency Withstand Voltage(kV)

42

Rated Lightning Impulse Withstand Voltage(kV)

75

Rated Peak Withstand Current(kA)

20


4S Rated Short-time Withstand Current(kA)

50


Rated Short-circuit Making Current(kA)

50

80

Rated Power load Drop-out Current(A)

630


Rated Short-circuit Drop-out Current(kA)


31.5

Rated Transfer Current(A)


1700

Standard

GB3906,GB3804

GB3906,GB12926

Protection Degree

≤IP3X

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