ZN85-40.5/T 33kv circuit breaker electrical power circuit breaker

High precision mechanical structure High conductivity copper

Description

ZN85-40.5/T (3AV3) series handcart type indoor vacuum circuit breaker for three- phase AC 50Hz, 40.5kV power system, for industrial and mining enterprises, power plants and substations as the division and load current, overload current fault current purposes, and occasions for frequent operation.

The circuit breaker arrangement with upper and lower structure, effectively reduce the depth of circuit breakers. And the use of composite structure , three-phase interrupter and associated charged body by the three independent separation of epoxy resin insulation casing, using a composite structure, the circuit breaker to meet the air under normal operating conditions from the required distance and climb and effectively reduce the size of circuit breakers, electrical circuit interrupter, a leading and dynamic and static conductive connection installed in the insulating tube, so that the distance only 300mm. All main circuit electrical connection fixed to connect with high reliability.

ZN85-40.5/T 33kv circuit breaker electrical power circuit breaker

Technical data

NO	Item		Units	Technical parameters
1	Rated voltage		kV	40.5
2	Rated current		A	1250		1600	2000,2500
3	Rated short-circuit breaking current		kA	25	31.5	25	31.5
4	Dynamic current(peak)		kA	63	80	63	80
5	4S Thernal current		kA	25	31.5	25	31.5
6	Rated short-circuit closing current (peak)		kA	63	80	63	80
7	Rated short-circuit breaking cuerrent breaking number		Times	20
8	Rated operating sequence			O-0.3s-CO-180s-CO
9	Rated insulation level	1 min Frequency voltage	kV	95
		Lighthning Impulse voltage tolerance(peak)		185
10	Mechanical life		Times	10000
11	Rated single capacitor device ON-OFF current		A	630
12	Rated single back-to-back capacitor device current		A	400
13	Rated voltage electrical energy storage		V	AC,DC:  110; 120
14	Energy storage power Rating		W	≤230
15	Electrical Energy Storage Energy storage time		S	≤15
16	Hop Tripping coil rated voltage		V	AC,DC:  110; 120
17	Hop Tripping coil rated current		A	1.05(110V), 0.96(220V)
18	Contactor opening distance		mm	20±2
19	Contactor Contact trip		mm	7.5±1.5
20	At the different period of three consistency		ms	≤2
21	Contact closing bounce time		ms	≤3
22	Leading electrical circuit resistance(excluding contactor arm)		μΩ	≤40

Overall Dimension

ZN85-40.5/T (3AV3) series electrical breaker switchgear electrical power circuit breaker

ZN85-40.5/T 33kv circuit breaker electrical power circuit breaker