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Home > Products > HV-Disconnect Switch > 145kV Outdoor Double Side Break Disconnect Switch Substation Isolator Disconnector

145kV Outdoor Double Side Break Disconnect Switch Substation Isolator Disconnector

Basic Info

Model No.:  GW7B-145

Product Description

Model NO.: GW7B-145 Structure: Double-column Disconnector Operation: Electric Movement Mode: Horizontal Rotary Type Grounding: Single Ground Run: Turn the Horizontal Common Model: Gw4a Certification: ISO, GS, RoHS, CE, IS9001, ISO9001 Application: Outdoor Voltage rating: up to 420kV Trademark: Tianan Electric Specification: Center break HS Code: 8535300000 Type: High-voltage Installation: Outdoor High-voltage Grounding Mode: Grounding Number of Poles: Three Pole Series: Single-Stage Switching Mode: Single Throw-in Structure of Operating: Electric Brand: Tianan Standards: IEC, ANSI, GB Current rating: upto 4000A Transport Package: Wooden Case Origin: Ningbo, China 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.

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

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Product Categories : HV-Disconnect Switch