12kv Indoor High Voltage Lbs-Fuse Combination Load Break Switch (VACFR25-12D)

China 12kv Indoor High Voltage Lbs-Fuse Combination Load Break Switch (VACFR25-12D), Find details about China Switch, Load Break Switch from 12kv Indoor High Voltage Lbs-Fuse Combination Load Break Switch (VACFR25-12D)

Basic Info.

Model NO.

VACFR25-12D/T125-31.5

Rated Short-Circuit Making Current

50ka

Rated Voltage of Auxiliary Loop

AC/DC220,110V

Mechanical Life

6000times

Trademark

VACEM

Origin

Wenzhou, China

Model NO.

VACFR25-12D/T125-31.5

Rated Short-Circuit Making Current

50ka

Rated Voltage of Auxiliary Loop

AC/DC220,110V

Mechanical Life

6000times

Trademark

VACEM

Origin

Wenzhou, China

Product Desciption

1.General description
VACFR25-12D/T125-31.5indoor AC M.V. vacuum load break switch-fuse combined electric appliance is the indoor installment with tri-phase AC 50Hz,rated voltage 12kv,which is suitable for load control and short-circuit protection using in industry and mining situation and so on enterprise substation and transformer substation.It is equipped with an earthing switch that may withstand short-circuit current.The operating mechanism can be possible manually and electrically operated that is advantageous to realize three remote controls requirement of electrical power system
VACFR25-12D load switch and combination electric appliance are suitable for load control and short-circuit protection,using in urban power station and industrial electric appliance supply by tri-phase ring network or terminal.For the protection of combined electric appliance on electrical appliance equipment is more reliable,economical than circuit breaker electrical appliance equipment such as the transformer,especially is for the ring net,double radiation power supply unit and box type transformer substation.
2.Main technical parameter
a:Main technical parameter of load break switch and combined appliance is seen in Table.1

Item		Unit	VACFR25-12D/T125-31.5
Rated voltage		kV	12
Rated frequency		Hz	50
Rated current		A	125
Rated insulation level	1 min P.F. withstand voltage(effective value)	kV	Vacuum interrupter fracture30kV
			Phase to phase,to earth42;isolating
	lightning impulse withstand voltage(peak)	kV	Vacuum interrupter fracture60kV
			Phase to phase,to earth75;isolating fracture85
Rated breaking no-load transformer capacity		kVA	1600
Rated shift current		A	2000
Fuse type			SDLAJ-12
			SFLAJ-12
Output energy of fuse ram		J	2-5(middle)
Rated short-circuit making current		kA	50
Rated dynamic stability current of earth switch		kA	50
2s thermal stability current of earth switch		kA	20
Rated voltage of auxiliary loop		V	AC/DC220,110
Mechanical life		times	6000

b:Main technical parameter of load break switch and combined appliance is seen in Table.2

Item	Unit	Data
Item	Unit	VACFR25-12D/T125-31.5
Air distance between electrics and earth	mm	≥125
Depth of conductive tube inserted into fixed contact-base	mm	≥18
Opening distance of vacuum interrupter	mm	6(+1,0)
Contact spring compression of vacuum interrupter	mm	2(+1,0)
Average closing speed of vacuum interrupter	m/s	0.6±0.2
Average opening speed of vacuum interrupter	m/s	1±0.2
Closing bounce time	ms	≤2
Tri-phase opening synchronous	ms	≤3
Main circuit resistance	μΩ	≤300
Manual operation max.torque	N.m	≤160
Opening time of fuse triggering	ms	30~40
Opening time of release triggering	ms	40~45

c:Energy-stored motor data is seen in Table.3

Type	Rated voltage(kV)	Rated current(A)	Rated power(W)	Normal operation voltage range
66ZY-CJ01B8	DC220	0.7	70	85%~110% rated voltage
66ZY-CJ02B	DC110	1.5	70	85%~110% rated voltage