Air Break 330kV Switch Disconnector Isolator 4000A Outdoor 40KA

Product Details:

Place of Origin:	China
Brand Name:	Tianan Electric
Certification:	GS RoHS CE
Model Number:	GW7B-145

Payment & Shipping Terms:

Minimum Order Quantity:	1 unit
Price:	Pending
Packaging Details:	Wooden Case
Delivery Time:	35 work days
Payment Terms:	L/C, T/T
Supply Ability:	12500 PCS/year

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Detailed Product Description

Installation:	Outdoor High-voltage	Series:	Single-Stage
Voltage Rating:	330kV	Current Rating:	Up To 4000A
Grounding:	Single Ground	Switching Mode:	Single Throw-in
Structure Of Operating:	Electric	Product Name:	Air Break 330kV Switch Disconnector Isolator 4000A Outdoor 40KA
High Light:	330kV switch disconnector isolator , switch disconnector isolator 4000A , air break switch disconnector Outdoor 40KA

Air Break 330kV Switch Disconnector Isolator 4000A Outdoor 40KA

Product Description

General
GW7B isolating switch is a kind of outdoor HV electricity transmission equipments at three-phase AC frequency of 50/60Hz. It is used for breaking or connecting HV lines under no loads so that these lines can be changed and connected and the way the electricity runs is changed. In addition, it can be used to exercise safe electrical insulation for such HV electric apparatuses as bus and breaker. The switch can open and close inductance/ capacitance current and is able to open the bus to switch current.
This product has three posts with horizontal open breaks. JW10 grounding switches may be attached to the product at one or two sides. 72.5~252kV isoalting siwtch adopts CJ2 or SRCJ2 manual actuator to realize the tri-ole linkage. The grounding switch adopts CS11 or SRCS manual actuator to actualize tri-pole linkage. 363kV isoalting switch adopts SRCJ2 motor's actuator to realize the single pole operation; while the grounding switch takes SRCS manual actuator or SRCJ2 motor's actuator to realize the single pole operation and also tri-pole linkage.

Air Break 330kV Switch Disconnector Isolator 4000A Outdoor 40KA Technical data

S/N	Item	Unit	Parameter
1	Rated voltage	kV	72.5	145	252	363	420
2	Rated insulation level
3	Rated power frequency withstand voltage (1 min)
4	To earth	kV	160	275	460	210	520
5	Across open breaks	kV	200	275+85	460+145	210+210	610
6	Rated lightning impulse withstand voltage
7	To earth	kV	350	650	1050	1175	1425
8	Across open breaks	kV	410	650+120	1050+200	1175+295	1425+240
9	Rated switch impulse withstand voltage (peak)
10	between phase/ to earth	kV	--	--	--	1425/950	1574/1050
11	Across open breaks	kV	--	--	--	850+295	900+345
12	Rated frequency	Hz	50/60	50/60	50/60	50/60	50/60
13	Rated current	A	1250 2000 2500 3150 4000	1250/2000	2000 2500 3150 4000 5000	31,505,000	3150
14	Rated short-time withstand current	kA	40 50	31.5/40	50/63	160	160
15	Rated peak withstand current	kA	100 125	80/100	125/160	63	63
16	Rated duration of short circuit	s	4	4	3	3	2
17	Rated terminal mechanical load
18	Horizontal -logntitudinal	N	750/1000	1250	1500	2500	2000
19	Horizontal- vertical	N	500/750	750	1000	2000	660
20	Vertical force	N	750	1000	1250	1500	1500
21	Isolating switch bus capacity of switching currents and opening/ closing		100V, 1600A, 100 times	100V, 1600A, 100 times	300V, 1600A, 100 times	450V, 3200A, 3times 400V, 1600A, 100 times	300V, 1600A, 100 times
22	Grounding switch induction current open/ closing capacity
23	Electromagnetic induction-typ current (current/ voltage)	A/kV	100/4 (80/2)	100/6 (80/2)	160/15 (80/3)	1250/35 (160/10)	160/10 (80/2)
24	electrostatic induction current (current/ voltage)	A/kV	2/6	5/6 (2/6)	10/15 (3/12)	50/50 (18/17)	18/20 (1.25/5)
25	Times of opening and closing	times	10	10	10	10	10
26	isolating switch small current open/ closing capacity
27	capacitive current	A	--	1	1	1	1
28	Inductive current	A	--	0.5	0.5	0.5	0.5
29	RIV radio interference voltage	uV	<500	<500	<500	<500	<500
30	Creepage distance	mm	>1813 2248	>3625 4495	>6300 7812	>9450	>10500
31	Mechnical endurance	times	5000	5000	1000	5000	10000
32	Applicable altitudes		<2000	<2000	<2000	<3000	<1000
33	Motor operating mechanism
34	Model		CJ2	CJ2	SRCJ2	SRCJ2	SRCJ2
35	Motor voltage	V	AC 380 DC220	AC 380 DC220	AC 380 DC220	AC 380 DC220	AC 380 DC220
36	Control circuit's voltage	V	AC 220 DC220 DC110	AC 220 DC220 DC110	AC 220 DC220 DC110	AC 220 DC220 DC110	AC 220 DC220 DC110
37	Opening time and closing time	s	7+1	7+1	16+1	16+1	16+1
38	Output shaft rotation		180	180	180	180	180
39	Manual operating mechanism
40	Model		CS11	CS11	SRCS	SRCS	SRCS
41	control circuit voltage	V	AC 220	AC 220	AC 220	AC 220	AC 220

Purpose
High voltage disconnectors are divided into indoor type and outdoor type. The outdoor type includes single pole switch and three pole disconnector, which is often used as the first circuit breaker isolating switch to separate the power supply line from the user; the indoor type is often connected in series with the high-voltage circuit breaker to ensure the reliability of power failure. In addition, in the high-voltage complete set of power distribution equipment, the disconnector is commonly used as voltage transformer, lightning arrester, transformer used in power distribution station and high-voltage control appliance of metering cabinet.