1. Description
Solid insulated switch is the core of solid insulated ring main switchgear. The switch is designed to integrate vacuum breaker or load switch, disconnector and earthing switch. The structure is compact which includes front side and back side. The front side is operation mechanism, the backside is primary part. Solid insulated switch can be different functional units with switchgear as a module, multiple modules has same structure, same operation.
2. Technical Feature
---- It is the core of solid-insulated switchgear.
---- Including C unit (load break switch), V unit (circuit breaker) & F unit (fuse load break switch).
---- Operating mechanism is at the front side and primary circuit is at the backside. Easily for operation, debug and test.
---- Busbar is at the top side. Easily for assembly if extending more units at left/right side.
---- As an independent component, it can be assembled to be different unit of the switchgear.
3. Working Condition
3.1 Altitude:≤5000m
3.2 Ambient air temperature: -45℃～+70℃
3.3 Relative air humidity: daily average ≤ 95%, monthly average ≤ 90%
3.4 Earthquake degree ≤ 8
3.5 Applicable in the places without fire, without explosion risk, without chemical corrosive and without violent vibration.
(Exceeding above working condition is available as customized product)
4. Technical Data
|
Item
|
V Unit
|
C Unit
|
F Unit
|
|
Rated voltage(KV)
|
12
|
24
|
12
|
24
|
12
|
24
|
|
Rated current (A)
|
800
|
630
|
125
|
|
Rated frequency (Hz)
|
50
|
|
Power frequency withstand voltage, phase-to-phase, phase to earth/open contact
|
42/48
|
50/60
|
|
Lighting impulse withstand voltage (KV)
Phase-to-phase, phase to earth/open contact
|
75/85
|
125/145
|
|
Rated short-circuit breaking current (KA)
|
25
|
|
31.5 (Fuse)
|
|
Rated cable-charging breaking current (A)
|
25
|
10
|
|
|
Rated short time withstand current (KA)
|
25
|
20
|
|
|
Rated short time withstand time (S)
|
4
|
4
|
|
|
Rated peak withstand current (KA)
|
63
|
50
|
|
|
Rated short time making current (KA)
|
63
|
50
|
|
|
Rated breaking transfer current (A)
|
|
|
3150
|
|
Internal arc test AFLR level (KA/S)
|
25/0.5
|
|
Partial discharge (pC)
|
≤20
|
|
Protection level body/switch
|
IP4X/IP67
|
|
Main circuit resistance (μΩ)
|
≤ 150
|
≤ 150
|
≤ 150
|
|
Mechanical life (times) main switch/ disconnector
|
10000/2000
|
5000/2000
|
5000/2000
|
5. Standard
---- GB/T11022-2011
---- GB1984-2003
---- GB1985-2004
---- GB3804-2004
---- GB3906-2006
---- GB16926-2009
---- IEC62271
---- GB/T1984, GB1985
Product Tags:
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