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Dis Sub-12 Compact fixed air-insulated switchgear

Dis Sub-12 Series of Compact fixed air-insulated switchgear is a new generation of miniaturized, modular.scalable, maintainable, environmental metal switchgear, which has the main feature that the main circuit withthree-phase vertical layout, the three lsolation switch and fixed vacuum circuit breaker function together, Thisequipment is widely used in 3-12kV three-phase AC 50Hz power system, suitable for box-type substation.ring network distribution system.

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Ring Main Unit

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0575-88620950

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Dis Sub-12 Compact fixed air-insulated switchgear

DETAIL

Product Introduction

Product Features

1.Sarety: The structure of the vacuum interuoter is solid. There are sare pressure relief channel both on the top of and behind the cabinet. which reduce the risk of internal combustion. It's maintainable and ensures the safety of operators and property.

2.Environmental protection: lt has no gas filling and no harmful gas emissions into the air.

3.Miniaturization. modulariy, intelioence: The cabinet width is oniy 500mm. occupying less space, the inlet and outlet cable installation height≥600mm, all conductor with hard connection, easy to maintain, any Combinaton, protection control and montoring functions, fuly integrated, to meet the distribution network automation.

4.Realization plan: *C load switch," circuit breakers, *F load switch + fuse, *PT voltage transtormer; " M metering; *D bus lift cabinet,etc. Out of the isolation on the ground; on the isolation under the ground.

Technical Parameter

Dis Sub-12系列 Dis Sub-12 Series			V	C	F
项目 Items		单位 Unit	参数 Parameter
额定电压 Ur Rated voltage Ur		kV	12
额定频率fr Rated frequency fr		Hz	50
额定电流Ir Rated current Ir		A	1250	1250	125*
额定绝缘水平 Rated insulation level	1min额定短时工频耐受电压ud(主回路) 1min rated short duration power-frequency withstand voltage ud (main circuit)
	相间、相对地 Phase to phase, phase to earth	kV	42
	隔离断口 isolated fracture	kV	48
	额定雷电冲击耐受电压 upRated lightning impulse withstand voltage up
	相间、相对地 Phase to phase, phase to earth	kV	75
	隔离断口 isolated fracture	kV	85
	1min额定短时工频耐受电压ud(C) 1min rated short duration power-frequency withstand voltage ud
	辅助回路 Auxiliary circuit	kV	2
额定短时耐受电流 KRated short-time withstand current lk	主回路/接地开关tk=4s Main circuit / ground switch tk=4s	kA	31.5	31.5
额定短时耐受电流 KRated short-time withstand current lk	接地连接回路 tk=2s Earth circuit tk=4s	kA	27.4	27.4
额定峰值耐受电流ip Rated peak withstand current lp	主回路/接地开关 Main circuit / ground switch	kA	80	80
额定峰值耐受电流ip Rated peak withstand current lp	接地连接回路 Earth circuit	kA	68.5
额定短路关合电流 ImaRated short-circuit closing current ima		kA	80	63
额定短路开断电流 lsc Rated short-circuit breakina current lsc		kA	31.5		31.5*
额定转移电流 Rated transfer current		A			3150
操作顺序 Operation sequence			0-0.3s-00-180s-00
额定短路电流开断次数 The amount of short arcuit cument breaking times			30
机械寿命(断路器/负荷开关) Mechanical life (circuit breaker load switch)			10000
机械寿命(三工位隔离开关) Mechanical life (Three-station disconnector			5000
防护等级(外壳) level of protection			IP4X