Three Phase Ac 50hz 40.5kv（36kv ) Rated Voltage Zn85 High Voltage Vacuum Circuit Breaker

Name: Three Phase Ac 50hz 40.5kv（36kv ) Rated Voltage Zn85 High Voltage Vacuum Circuit Breaker
Brand: Ningbo Mingde Electrical Science&Technology Co.,Ltd
Rating: 4.2 (2 reviews)

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Three Phase AC 50HZ 40.5kv(36kv ) Rated Voltage ZN85 High Voltage Vacuum Circuit Breaker
4.1 circuit breakers main fixed parameters (table 1)

Serial number	Parameter name	Unit	Specification parameter
1	Rated voltage	kV	40.5
2	1min labor frequency durable voltage (has effect value)	kV	95
3	Lightning surge withstanding voltage (peak value)	kV	185
4	Nominal frequency	Hz	50
5	Nominal current	A	1250 , 1600 , 2000
6	Fixed short-time withstanding electric current	kA	25 , 31.5
7	Fixed peak value withstanding electric current	kA	63 , 80
8	The rating short-circuits the duration	s	4
9	The rating short-circuits the drop-out current	kA	25 , 31.5
10	The rating short-circuits the pass to gather the electric current	kA	63 , 80
11	Fixed operation sequence		O—0.3s—CO—180s—CO
12	Opens breaks the time	ms	≤80
13	The rating short-circuits the drop-out current to open breaks the number of times	time	20
14	Single condenser bank drop-out current	A	630
15	Back to back condenser bank drop-out current	A	400
16	Fixed operation voltage	V	AC110/220 , DC1100/220
17	Mechanical life	time	10000

4.2, Circuit breaker main physical characteristics parameter (table 2)

Serial number	Parameter name	Unit	Specification parameter
1	The contact opens the distance	mm	20±2
2	Front the contact overtravel	mm	7.5±1.5
3	after the average Gathers floodg speed (contact just gathered 12mm)	m/s	0.8±0.2
4	evenly to divide equally the floodgate speed (contact just to divide 12mm)	m/s	1.8±0.2
5	Gathers floodg time	ms	≤ 100
6	minute floodgate time	ms	≤ 60
7	The contact Gathers floodg bounces the time	ms	≤ 3
8	Three coincides, divides the floodgate no same time	ms	≤ 2
9	Buffer cushion travelling schedule	mm	13±1
10	Each return route resistance (including does not touch arm)	μΩ	≤ 40
11	contact permission attrition thickness	mm	3

Outline Dimension Drawing

Dear friends, pls contact us for the outline dimension drawing, we will give you quick reply.

ZN85-40.5 indoors a.c. high voltage vacuum circuit-breaker (hereafter refers to as circuit breaker) is three phase ac 50HZ, the rated voltage 40.5kV indoors switching gear.

The circuit breaker conforms to GB1984-1989 " high voltage Circuit breaker", JB3855-1996 "3.6 - 40.5kV Indoors.

high voltage Vacuum circuit-breaker" and the IEC related standard. The circuit breaker may supply the industry and mining enterprise,

the power plant and the transformer substation using of as the analysis and synthesis load current,

the excess current, the fault current, and is suitable for the frequent operation place.

2 Using Environmental Condition
2.1 altitudes above sea level: <= 1000m
2.2 ambient temperatures: Highest does not surpass 40 ℃ , the daily average value does not surpass 35 ℃ ;

Most is lower than -15 ℃ .
2.3 environment humidities: The date relative humidity mean value is not bigger than 95%;

The date steam pressure mean value does not surpass 2.2kpa;

The month relative humidity mean value is not bigger than 90%;

The month steam pressure mean value does not surpass 1.8kpa.
2.4 earthquake intensities: Is lower than 8 levels of
2.5 circuit breakers to have to install is not having the fire, the non- explosion hazard,

non-corrosiveness gas and the not fierce vibration place.
2.6 the electronmagetic interference peak-to-peak value which induces in two systems does not surpass 1.6kv.
2.7 power sources conditions: Direct current 110V, 220V; Exchanges 110V, the 220V
2.8 customers like has other special requests, may when the ordering proposed,

the our company may give most greatly satisfies.

Scope Of Application

It is universally used in power plant , electric network ,

metallurgy industry petrochemical industry and infrastructures, such as airport , subway, building.

More Information,Please See Our Official Website: www.meletek.com

Three Phase Ac 50hz 40.5kv（36kv ) Rated Voltage Zn85 High Voltage Vacuum Circuit Breaker

Three Phase AC 50HZ 40.5kv(36kv ) Rated Voltage ZN85 High Voltage Vacuum Circuit Breaker 4.1 circuit breakers main fixed parameters (table 1)

Three Phase AC 50HZ 40.5kv(36kv ) Rated Voltage ZN85 High Voltage Vacuum Circuit Breaker
4.1 circuit breakers main fixed parameters (table 1)