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138kV Center Break High Voltage Disconnect Switch Substation Isolator Disconnector (GW7B-145)

Categories High Voltage Disconnect Switch
Brand Name: Tianan Electric
Model Number: GW7B-145
Certification: GS RoHS CE
Place of Origin: China
MOQ: 1 unit
Price: Pending
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 12500 PCS/year
Delivery Time: 35 work days
Packaging Details: Wooden Case
Installation: Outdoor High-voltage
Series: Single-Stage
Voltage Rating: 330kV
Current rating: up to 4000A
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    138kV Center Break High Voltage Disconnect Switch Substation Isolator Disconnector (GW7B-145)

    138kV Center Break Disconnect Switch Substation isolator Disconnector (GW7B-145)
    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.
    Technical data
    S/NItemUnitParameter
    1Rated voltagekV72.5145252363420
    2Rated insulation level
    3Rated power frequency withstand voltage (1 min)
    4To earthkV160275460210520
    5Across open breakskV200275+85460+145210+210610
    6Rated lightning impulse withstand voltage
    7To earthkV350650105011751425
    8Across open breakskV410650+1201050+2001175+2951425+240
    9Rated switch impulse withstand voltage (peak)
    10between phase/ to earthkV------1425/9501574/1050
    11Across open breakskV------850+295900+345
    12Rated frequencyHz50/6050/6050/6050/6050/60
    13Rated currentA1250
    2000
    2500
    3150
    4000
    1250/20002000
    2500
    3150
    4000
    5000
    31,505,0003150
    14Rated short-time withstand currentkA
    40
    50
    31.5/4050/63160160
    15Rated peak withstand currentkA
    100
    125
    80/100125/1606363
    16Rated duration of short circuits44332
    17Rated terminal mechanical load
    18Horizontal -logntitudinalN750/10001250150025002000
    19Horizontal- verticalN500/75075010002000660
    20Vertical forceN7501000125015001500
    21Isolating 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
    22Grounding switch induction current open/ closing capacity
    23Electromagnetic induction-typ current (current/ voltage)A/kV100/4 (80/2)100/6 (80/2)160/15 (80/3)1250/35 (160/10)160/10 (80/2)
    24electrostatic induction current (current/ voltage)A/kV2/65/6 (2/6)10/15 (3/12)50/50 (18/17)18/20 (1.25/5)
    25Times of opening and closingtimes1010101010
    26isolating switch small current open/ closing capacity
    27capacitive currentA--1111
    28Inductive currentA--0.50.50.50.5
    29RIV radio interference voltageuV<500<500<500<500<500
    30Creepage distancemm>1813
    2248
    >3625
    4495
    >6300
    7812
    >9450>10500
    31Mechnical endurancetimes500050001000500010000
    32Applicable altitudes<2000<2000<2000<3000<1000
    33Motor operating mechanism
    34ModelCJ2CJ2SRCJ2SRCJ2SRCJ2
    35Motor voltageVAC 380
    DC220
    AC 380
    DC220
    AC 380
    DC220
    AC 380
    DC220
    AC 380
    DC220
    36Control circuit's voltageV
    AC 220
    DC220
    DC110

    AC 220
    DC220
    DC110

    AC 220
    DC220
    DC110

    AC 220
    DC220
    DC110

    AC 220
    DC220
    DC110
    37Opening time and closing times7+17+116+116+116+1
    38Output shaft rotation180180180180180
    39Manual operating mechanism
    40ModelCS11CS11SRCSSRCSSRCS
    41control circuit voltageVAC 220AC 220AC 220AC 220AC 220





















































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