Single-phase enclosure SF6 GIS (72.5-300kV)

Ratings Specification :

Ratings (Based on IEC 517)

  Rated voltage (kV)
72.5 100 123 145 170 245 300
Insulation level (kV)
Lightning impulse withstand voltage
Power frequency withstand voltage
325 450 550 650 750 950 1050
140 185 230 275 325 395 460
Circuit Breaker
Type
Rated current (A)
Rated short-time current (kA)
Rated interrupting current (kA)
Rated interrupting time (cycles)
Operating mechanism
Single-pressure puffer
1250/2000/3150/4000
50/63 25/31.5/40/50/63
50/63 25/31.5/40/50/63
3/5
Pneumatic
Disconnector
(isolator)1
Type
Rated current (A)
Rated short-time current (kA)
Operating mechanism
Linear Break
800/1250/1600/2000/3150/4000 2000/3150/4000
50/63 25/31.5/40/50/63
Manual, motor or pnumatic
Earthing switch
Type
Rated short-time current (kA)
Operating mechanism
Linear Break
50/63 25/31.5/40/50/63
Manual, motor-charged spring, or pneumatic
Voltage (potential)1
transformer
Type
Rated primary voltage (kV)
Rated secondary voltage (V)
Wound or capacitive
72.5/Ö3 100/Ö3 123/Ö3 145/Ö3 170/Ö3 245/Ö3 300/Ö3
110/Ö3 | 115/Ö3 | 120/Ö3 | 200/Ö3
Current
transformer
Type
Rated primary current (A)
Rated secondary current (A)
Troidal (ring) core
600/750/1000/1250/1500/2000/2500/3000/4000
1/5
Surge arrester
Type
Rated voltage (kV)2
Rated discharge current (kA)
Metal Oxide
60/84 84/102 96/126 120/150 144/186 192/264 258/312
10
Busbar
Enclosure
Rated current (A)
Rated short-time current (kA)
Three-phase or single-phase
1250/2000/3150/4000
50/63 25/31.5/40/50/63

Notes :

  1. Words in parentheses are Mitsubishi Eletric's standard nomenclature, which is used here.
  2. The surge arrester rated voltage should be determined in accordance with the system insulation design.

Ratings (Based on ANSI Standard)

  Rated voltage (kV)
72.5 121 145 169 242
Insulation level (kV)
Lightning impulse withstand voltage
Power frequency withstand voltage
350 550 650 750 900
160 215 310 365 425
Circuit Breaker
Type
Rated current (A)
Rated short-time current (kA)
Rated interrupting current (kA)
Rated interrupting time (cycles)
Operating mechanism
Single-pressure puffer
1200/1600/2000/3000
50/63 20/31.5/40/50/63
50/63 20/31.5/40/50/63
3/5
Pneumatic
Disconnecting switch
Type
Rated current (A)
Rated short-time current (kA)
Operating mechanism
Linear Break
800/1200/1600/2000/3000/4000
50/63 20/31.5/40/50/63
Manual, motor or pneumatic
Ground switch
Type
Rated short-time current (kA)
Operating mechanism
Linear Break
50/63 20/31.5/40/50/63
Manual, motor-charged spring, or pneumatic
Busbar
Enclosure
Rated current (A)
Rated short-time current (kA)
Three-phase or single-phase
1200/1600/2000/3000/4000
50/63 20/31.5/40/50/63
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