ZN85-40.5 Series Indoor High Voltage Vacuum Circuit Breaker

Product Detail

ZN85-40.5 indoor HV vacuum circuit breaker is a 3-phase AC 50Hz 40.5kV indoor switch equipment.

♦ Installation way: withdrawable type;

♦ Operating mechanism: spring operating mechanism;

♦ Pole type: assembled pole, embedded pole;

♦ Application: switchgear KYN61-40.5.

♦ Secondary plug: 58pins, 64pins.

Environmental Conditions

♦ Ambient temperature: -15r~+40r;

♦ Altitude:

♦ Relative humidity: daily average ;

♦ Earthquake intensity:

♦ Places without fire, explosion hazard, serious filthy, chemical corrosion, as well as intense vibration.

Main Technical Parameters

No	Item	Unit	Value
1	Rated voltage	kV	40.5
2	Rated current	A	1250 1600, 2000, 2500
3	Rated short circuit breaking current	kA	25, 31.5
4	Dynamic current (peak)		63, 80
5	4s thermal stability current		25, 31.5
6	Rated short circuit making current (peak)		63, 80
7	Rated short circuit current breaking number	Times	20
8	Rated operating sequence		O-0.3s-CO-180s-CO
9	1 min power frequency withstand voltage	kV	95
10	Rated lightning impulse withstand voltage	kV	185
11	Mechanical life	Times	10000
12	Rated single capacitor bank switching current	A	630
13	Rated back-to-back capacitor bank current	A	400
14	Rated voltage of energy storage motor	IN	AC/DC 220/110
15	Power of energy storage motor	IN	≤230
16	Energy storage time	s	≤15
17	Ratea voltage of closing/opening coil	IN	DC 220/110
18	Rated current of closing/opening coil	A	1.05(110V) 0.96(220V)
19	Clearance between open contacts	mm	20±2
20	Contact travel	mm	7.5±1.5
twenty one	Three phase opening and closing asynchronism	ms	≤2
twenty two	Contact closing bounce time	ms	≤3
twenty three	Main circuit resistance (not include contact arm)	mΩ	≤40