Automatic Circuit Breaker / Recloser (VCB/ACR)

Detailed Product Description

Automatic Circuit Breaker / Recloser (VCB/ACR)

General
rated voltage12kV, 15kV and three-phase AC 50Hz~60Hz. It is used for protecting and controlling distribution systems in transformer substations and industrial and mining enterprises. It can also be used for frequently operation in country electric net-works. Combining with the disconnecting switch, it can be used as a section switch for switching off/on load current, over-load current and short circuit current in power systems.

Using compact and high reliability spring operating mechanism, the operating mechanism structure is simple and has long life up to 2000 times.

    Salient feature
1.  Epoxy resin solid insulation,no oil and SF6,harmless to environment
2.  Vacuum breaking and longitudinal magnetic-field arc extinction,steady and reliable
3.  Outdoor special epoxy resin,ultraviolet ray withstand,flashover proof and aging again
4.  CTB-S spring operating mechanism is widely used.The mechanical life is 10000~3000 times
5.  With compact structure,small size and light weight.It is easy install and transport it
6.  Dealt case body,no corrosion,outline remains good looking long(Choose stainless steel case body)
7.  Intelligent computer controller,provides miscellaneous functions
8.  It realizes supervisory control,monitoring and SCADA by matchingFTU

     Normal working environment
1.  Ambient temperature:+70~-30
2.  Altitude:≤2000m(If the place is at higher altitude,enhance rated insulation level)
3.  Wind pressure:≤700Pa(Equival to wind speed 35m/s)              
4.  Pollution class:Grade
5.  Maximum day temperature difference: ≤35
6.  No burning or explosion hazard,chemical corrosion or excessive vibration

     Advantages

• Lower circuit resistance and temperature rise ;
• Higher breaking capacity , excellent insulating performance ;
• True maintence free products ;
• Long service time of operating mechanism ;
• All being strictly tested before going out of factory ;

    Technical Parameter

Item			Unit	Parameter
Rated voltage			KV	12	15
Frequenty			Hz	50/60 Hz
Rated insulation level	1min power frequency	Dry	KV	50
	withstand voltage	Wet	KV	45
	Lightning impulse withstand voltage (peak)		KV	75	110
Rated current			A	200/400/630/1250
Rated short circuit breaking current			KA	12.5/16/20/25/31.5
Rated operation sequence				O-0.3S-CO-180S-CO
Times of breaking rated short circuit breaking current.			times	30
Rated short circuit making current (peak)			KA	50/80
Rated peak withstand current			KA
Rated short time withstand current			KA	12.5/16/20/25/31.5
Duration of rated short time withstand current			S	4
Switch-off time(Rated operating voltage			ms	2045		≤85
Switch-on time				2550		≤50
Switch-on power			J	70		90
Energy storage motor rated input power			W	≤40		≤50
Rated operating voltage and auxiliary circuit rated voltage			V	DC220		DC220
				AC220		AC220
Ambient temperature				-3070
Maximum mechnical and electrical operations			times	10000/20000/30000