12kv Indoor High Voltage Air-Compression Load Break Switch ( VACF25 -12D)

China 12kv Indoor High Voltage Air-Compression Load Break Switch (VACF25-12D), Find details about China Load Break Switch, Air-Compression Load Break Switch from 12kv Indoor High Voltage Air-Compression Load Break Switch (VACF25-12D)

Basic Info.

Model NO.

VACF25-12D/T630-20

Rated Dynamic Stability Current(Peak)

50ka

4s Thermal Stability Current

20ka

Rated Power Load Breaking Current

630A

Rated Cable Charge Breaking Current

10A

Mechanical Life

6000times

Trademark

VACEM

Origin

Wenzhou, China

Model NO.

VACF25-12D/T630-20

Rated Dynamic Stability Current(Peak)

50ka

4s Thermal Stability Current

20ka

Rated Power Load Breaking Current

630A

Rated Cable Charge Breaking Current

10A

Mechanical Life

6000times

Trademark

VACEM

Origin

Wenzhou, China

Product Desciption

1.General description
VACF25-12D/T630-20 indoor AC M.V. load break switch is the indoor installation with tri-phase AC 50Hz,rated voltage 12kv,which is suitable for using in industry and mining situation and so on enterprise substation and transformer substation.As protection and controlling the electrical facility,using in OFF and On load current,closed loop current,including transformer and cable charging current.It has manual and electrical motor operating mechanism that is advantageous to realize three remote controls requirement of power system.
VACF25-12D 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	VACF25-12D/T630-20
Rated voltage		kV	12kV
Rated frequency		Hz	50Hz
Rated current		A	630A
Rated insulation level	1 min P.F. withstand voltage(effective value)	kV	Vacuum interrupter fracture30kV
		kV	Phase to phase,to earth42;isolating fracture48
	lightning impulse withstand voltage(peak)		Vacuum interrupter fracture60kV
			Phase to phase,to earth75;isolating fracture85
Rated dynamic stability current(peak)		kA	50kA
4s thermal stability current		kA	20kA
Rated power load breaking current		A	630A
Rated closing loop breaking current		A	630A
Rated cable charge breaking current		A	10A
Rated breaking no-load transformer capacity		kVA	1600kVA
Rated short-circuit making current		kA	50kA
Rated dynamic stability current of earth switch		kA	50kA
2s thermal stability current of earth switch		kA	20kA
Rated voltage of auxiliary loop		V	AC/DC220,110V
Mechanical life		times	6000times

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

Item	Unit	Data
		VACF25-12D/T630-20
Air distance between electrics and earth	mm	≥12
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	≤150
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