Manufacturer Supplies Hot-Selling Zw7 Waterproof Disconnect Switches for Transformers, Cables

• Customization: Available
• Type: High-voltage
• Structure: Three-column Disconnector
• Model NO.: unspecified
• Installation: Indoor High-voltage
• Operation: Manual Electric
• Grounding Mode: Grounding
• Movement Mode: Horizontal Rotary Type
• Number of Poles: Three Pole
• Grounding: Contact Us
• Series: Three
• Run: Swing
• Switching Mode: Double-Throw Type
• Common Model: Fkn1
• Structure of Operating: Electric
• Certification: ISO, GS, RoHS, CE, IS9001, ISO9001, ISO9002, ISO2000
• Brand: Mingzhe
• Rated Voltage: 12kv
• Rated Frequency: 50Hz
• Rated Dynamic Current: 50kv
• Characterization: Rapid Disconnection
• Transport Package: Pallet Wooden
• Specification: Please contact the merchant for detailed specifica
• Trademark: MINGZHE
• Origin: China

Product Description

 

Product Description

 

Product Description:

  ZW7-40.5 type outdoor AC high-voltage vacuum circuit breaker is the control and protection equipment of power lines, used in AC 50Hz three-phase power system, as a division of full load current, overload current and short-circuit current. 
ZW7-40.5 series outdoor AC high-voltage vacuum circuit breaker is a new type of high-quality circuit breaker developed and produced by our company with the introduction of domestic and foreign advanced technology and according to the actual situation of China's power grid. The product has the advantages of reasonable design, strong complete set, novel appearance, safety and reliability, easy maintenance, long electric life, etc. It is the ideal equipment for upgrading 35KV outdoor multi-oil circuit breaker, and has reached the international level of the 1990s. 

  ZW7-40.5 outdoor AC high-voltage vacuum circuit breaker meets the following standards: 
National Standard GB1984-1989 
National Standard IEC56


 

Product Parameters

NO.	Items	Unit	Data
			FKN12-12D/630	FKN12-12(R)D/630
1	Rated voltage	KV	12
2	Rated frequency	Hz	50
3	Rated Current	A	630	1250
4	Lightning impulse withstand voltage	KV	To earth and phase to phase 75, isolation fracture 85
5	1 min power frequency withstand voltage	KA	To earth and phase to phase 42, isolation fracture 48
6	Rated thermal stability current	KA	20(4s)
7	Rated dynamic current	KA	50
8	Rated dosing current (peak)	KA	50	50
9	Rated short circuit breaking current (Expected value)	KA		31.5
10	Maximum at critical breaking current	A2S	According to the fuse characteristic curve
11	Minimum breaking current	KA	According to the fuse characteristic curve
12	Rated transfer current	KA		1.5
13	Maximum breaking current (reference value)	KA	1.8
14	Breaking the capacity of the no-load transformer	KVA	1250
15	Rated cable charging current	A	10
16	Rated active load current breaking times	Times	>100
17	The impactor touches the load switch opening time	S		>0.06
18	Earthing switch thermal stability current	KA	20(2S)
19	Earthing switch thermal stability current (peak)	KA	50
20	Motor operating power supply voltage	V	AC DC 110, 220

 

No.	Name	Unit	Data
1	Fracture from	mm	>175
2	Phase center distance	mm	210±2
3	Interphase air gap	mm	> 125
4	Trip	mm	210
5	Over Trip	mm	>40
6	Three-phase closing is not the same period	ms	<10
7	Three-phase opening is not the same period	ms	<5
8	The inherent opening time of divider exciter	ms	40-65
9	Main circuit resistance	uΩ	<300

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