Zw7-40.5f (M) Outdoor Three-Phase High Voltage 12kv Indoor Electrical Vacuum Switch

Product Description

Product Description

ZW7-40.5 outdoor HV vacuum circuit breaker is a 3-phase AC 50Hz 40.5kV outdoor switch equipment.

♦ Installation way: foundation installation;

♦ Operating mechanism: spring operating mechanism and electromagnetic operating mechanism;

♦ Pole material: silicone rubber, ceramic;

♦ Application: outdoor 33kV substation, power plant.

♦ Current transformer: in-buit installation, external installation.

 

 

Product Parameters

Product Standards

♦ IEC62271-100 High Voltage Switchgear and Controlgear Part 100: AC Circuit-breakers

♦ GB1984 High Voltage AC Circuit-breakers

♦ GB/T11022 Common Specifications for High-voltage Switchgear and Controlgear Standards

♦ JB/T 3855 High Voltage AC Vacuum Circuit-breakers

♦ DL/T402 Specification of High-voltage AC Circuit-breakers

Environmental Conditions

♦ Ambient temperature: -40°C~+40°C;

♦ Altitude: <1000m;

♦ Maximum wind speed is 10km/h, minimum wind speed for the rated level (132/230kv) is 3.2km/h;

♦ Earthquake intensity: <8 level;

♦ Minimum nominal creepage distance: 31mm/kV;

♦ Air pollution degree: Class IV.

 

Technical parameters

 

No	Item		Unit	Value
1	Rated voltage		kV	40.5
2	Rated insulation level	1 min power frequencyDry test(fracture, inter-phase,to earth)Wet test(to earth, external insulation)	kV	95                     85
		Lightning impulse withstand voltage(peak)		185
3	Rated current		A	1250,1600,2000, 2500
4	Rated short circuit breaking current		kA	20,25,31.5
5	Rated short circuit making current(peak)		kA	50,63,80
6	Rated peak withstand current		kA	50,63,80
7	Rated short time withstand current		kA	20,25,31.5
8	Rated operating sequence			0-0.3S-CO-180S-CO
9	Rated short circuit breaking current breaking number		times	20
10	Rated short circuit duration		s	4
11	Breaking time		S	≤0.09
12	Mechanical life		times	10000
13	Newly manufactured vacuum interrupter		Ps	≤1.33×10-3
	Vacuum interrupter during 20-year storage time			<6.6×10-2
14	Circuit breaker net weight		kg	800
15	Clearance between open contacts		mm	22±2
16	Contact travel		mm	4±1
17	Average opening speed		m/s	1.4-1.7
18	Average closing speed		m/s	0.4-0.7
19	Contact closing bounce time		ms	≤3
20	Inter-phase opening and closing synchronism		ms	≤2
21	Closing time		ms	50≤t≤200
22	Opening time		ms	30≤t≤60
23	Each phase main circuit DC resistance (not includeCT internal resistance)		μQ	≤100
24	Dynamic and fixed contact cumulative thickness allowed to wear		mm	3
25	Rated contact pressure		N	2500±200

Company Profile

Certifications

company workshop

 

Packaging & Shipping

1. Are you a trading company or manufacturer ?
We are a professional factory with 10 years experience in the field of High and Low voltage switchgears,Substation,transformers,cable distribution box and various electrical equipment, such as vacuum circuit breaker , load break switch etc.
Our factory is the excellent supplier of State Grid Corporation of China.
2. Do you accept customized serveice ?
We offer OEM/ODM service , can print your logo on product . our professional technical and quotation team can provice a satisfied project according to your drawing and parameters.
3. What is your MOQ?
Our MOQ is 1 piece.
4. How long is your delivery lead time ?
It depends on your product requirement and quantity . Generally , 5~10 working days is available
5. How do you solve quality problems?
Please porvide detailed photoes of quality problems. our technical and quality testing department will analyse.we will make a satisfied soluton within 2 days .
6. What is your payment terms ?
30%T/T in advance,70% before shipment . West union , L/C are also acceptable .