Chinese Manufacturers Gw4 High-Capacity Loads Earthing Switch for Power Distribution for Industrial Enterprises

• 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:

  Gw4-12, 15, 24, 35, 40.5, 72.5, 126 series outdoor AC high voltage isolation switch (hereinafter referred to as isolation switch).  Suitable for power system with frequency of 50Hz and rated voltage of 11, 24, 35, 40.5, 72.5, 126kV, as voltage load time division circuit.  Among them, the isolation start of anti-pollution type can meet the requirements of users in heavy pollution areas, and can effectively solve the pollution flash problem in the operation of the isolation switch.  

The disconnector and earthing switch attached, each with independent operation mechanism, to ensure that the disconnector and earthing switch between operating sequence is correct, this product is the interlocking device is equipped with institutions, 30-110 kv for I and II grounding switch points, 15, 220 kv for II, II the dynamic thermal stability of the grounding switch is the same as the isolating switch.  

This product has the following different specifications:  

1. According to whether there is a grounding switch, there are three types: ungrounded, single grounded, and double grounded  
2. According to the area of use, it is divided into: common type, anti-pollution type.  
 
The characteristics of this series of disconnecting switches are as follows :

(1) the electric end is transferred through soft connection, and the reliability of conductive contact is ensured; 
(2) the ground knife is arranged outside to ensure the reliable insulation distance between the ground knife and the other electrical end during the closing process; 
(3) gw4-220 is equipped with folding and folding ground knife, which reduces the space taken up by the ground knife. 

Product Parameters

Name		Unit	GW4-12	GW4-40.5	GW4-72.5	GW4-126	GW4-126G	GW4-145
Rated Voltage		KV	12	40.5	72.5	126	126	145
Rated current		A	200	630	630	630	630	630
			400	1000	1250	1250	1250	1250
			630	2000	2000	2000		2000
			1000	2500	2500	2500		2500
			1250
Rated short-circuit withstand current (RMS)		KA	16	20	20	20	20	20
			20	31.5	31.5	31.5	31.5	31.5
			25	40(46)	40(46)	40(46)		40(46)
Rated peak withstand current (RMS)		KA	40	50	50	50	50	50
			50	80	80	80	80	80
			63	100(104)	100(104)	100(104)		100(104)
1min power frequency withstand voltage (peak)	To the ground	KV	42	80	140	185	185	275
						-230
	Fracture		48	90	160	210	210	315
						-265
Lightning impulse withstand voltage (peak)	To the ground		75	185	325	450	450	650
						-550
	Fracture		85	215	375	520	550	750
						-530
Terminal horizontal tension		N	250	490	735	735	735	980
				-735
Monopolar weight		KG	60	80	200	240	240	300
Remarks							Suitable for altitude 2000m	Suitable for 110kv altitude 4000m

 

Rated Voltage	The max Rated Voltage	Rated Current	Dynamic stable current (peak value)	Thermal stable current (effective value)	One-minute power frequency voltage withstand (effective value)		Lightning shock withstand (peak value)		Open and Close Time	Terminal static tension rating	Turn off capacitive current	creep distance		Unipolar weight	Remark
					Earthing	Opening	Earthing	Closeing
KV	KV	A	KA	KA-S	KV		KV		S	N	A	Mm		Kg
												Normal	Antifouling
12	12	630	50	20--4	75	85	165	200		450		625	875	120
24	24	1250	80	31.5-4										145
		1600	100	40--2									1225	170
		2000
35	40.5	630	50	20--4	80	90	185	215		500		625	875	120
-40.5		1250	80	31.5-4										145
		1600	100	40--2									1225	170
		2000
63	72.5	630	50	20--4	140	160	325	375		500		1100	1600	180
-72.5		1250	80	31.5-4										200
		1600	100	50--2									1813	225
		2000
		2500	125	20--4									2205	260
110	126	630	50	31.5-4	230	265	550	630		750		1870	2750	200	International pressure standards in parentheses are available for altitude 2500m
-126		1250	80		-185	-450	-450	-520						230
		1600	100	40--2									3150	260
		2000
-145	145	1250	80	31.5-4	275	315	650	750	6+1	Vertical 500		2400	3800	300	It can be used for 110kV system with altitude of 4000m
		1600	100	40--2						Horizontal 170				320
		2000
		3150	125	50--3						Vertical 1250 Horizontal 420				380
220	252	1250	100	40--3	450	530	1050	1200	6+1	1000	0.5	3740	5500	630~710
-245		1600	125	50--3									6300	650~750

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