Zw7-40.5kv Vacuum Circuit Breaker for Pole Transformer with Current Transformer Polymer Insulator

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Manual Type
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Fixed
• Structure: Sf6
• Model NO.: ZW7-40.5KV
• Poles Number: 1
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection)
• Certification: VDE, ISO9001-2000, CE, CB
• Using Range: Outdoor
• Insulate Medium: Sf6 Gas
• Voltage: 12/24/36kv
• Transport Package: Wooden Package
• Trademark: JUNKE
• Origin: Wenzhou
• Production Capacity: 1000PCS/Month

Product Description

Type ZW7-40.5 outdoor high-voltage vacuum circuit breaker is a kind of outdoor high-voltage switchgear under three-phase AC 50Hz, 36kv rated voltage and below. It can be used to switch on and off the loading, overloading and short-circuit current.

Features:

1. Storage, making and breaking by motor, It can operating by handle.

2. Breaking short-circuit current up to 25kA.

3. Mini motor spring mechanism (about 30W).

4. Installation method: adopt two type installation method.

5. Sealing performance: adopt reliable sealing technical.

6. Incoming & Outgoing method: adopt porcelain bushing to make enough insulate distance.

7. Safe operating: there is an equipment to protect explosion.

1.connect spring operating structure or electromagnetic actuator structure,
 2.remote controlelectric points, closing, o local manual energy storage, manual, closing. Design and performance in line
 3. The overall structure of the product for the porcelain post type vacuum interrupter with porcelain, porcelainvases under pillar Suita ble for frequent operation place. 
4.it has the advantages of good sealing performance.aging resistance, high pressure resistance, no burning, no explosion, long service life, easy installation andmaintenance

Techincal data:

 

No.	Item			Unit	Data
1	Rated voltage			KV	40.5
2	Rated current			A	1250,1600,2000
3	Rated short-circuit breaking current			KA	20,25,31.5
4	Rated insulation level	Power frequency withstand voltage	Dry	KV	95
			Wet	KV	80
		Lightning impulse withstand voltage (peak value)		KV	185
5	Rated operating sequence				O-0.3s-CO-180s-CO
6	Rated  capacitor group breaking current			A	400
7	Rated short-circuit breaking current			Time	20
8	Rated peak withstand current			KA	50,63,80
9	Rated short - time withstand current			KA	20,25,31.5
10	Rated Short-circuit Continuing Time			S	4
11	Machinery life			Time	10000
12	Permissible gross wearing thickness  for dynamic/static contacts			mm	3