1. 145 kV Isolator 2. 3-pole double-horizontal-break construction 3.Corrosion-proof 4. IEC Standard 5. KEMA Report

1. 800KV Isolator

2. Mode: GW7

3. Main Features

    GW7 Series disconnector are 3-pole outdoor HV a.c electric devices, including 40.5kV, 72.5kV, 126kV and 145 kV disconnectors, which own 3-pole double-horizontal-break construction, consist of installation base, supporting insulator, rotating insulator, moving contact, fixed contact and earthing switch, etc.

     a. Reasonable structure, excellent performance and reliable service;

     b. Excellent mechanical properties, small operating force, high reliability, long mechanical       endurance;

     c. Brilliant anticorrosive capability.

     d. Small circuit resistance and good waterproof performance.

4. Service Condition

    a. Ambient temperature: -40 to +40 degree centigrade

    b. Altitude:1000 or 2000m

    c. Wind Pressure: no more than 700Pa(34m/s)

   d. Seismic Level: 8 degree

 5. Technical Specifications

a. Rated volateg                                                                    145KV

b. Rated Current                                                                   2000A

c. Rated peak withstand current                                             80KA

d. Rated short time withstand current                                     31.5KA

e. Type of operating mechanism for isolator                            Manual or motor

f. Type of operating mechanism for earthing switch                 Manual

g. Operating mode of disconnector                                        3 phase gang operation

6. Outline Drawing

  

145kV Ioutdoor Electrical Isolator