SF6 manual motorize Load break switch
RPS is an SF6-insulated, outdoor pole mounted load break switch family for overhea…
SF6 manual motorize Load break switch

SF6 manual motorize Load break switch

Detailed description

  • Description
  • Technical data
  • 15kV IEC/ANSI5
  • 27kV IEC/ANSI
  • 38kV IEC/ANSI

RPS is an SF6-insulated, outdoor pole mounted load break switch family for overhead lines and specifically designed for use in modern remote controlled distribution automation systems. The RPS offers reliable maintenance free operation even in the most demanding climatic conditions including salt laden atmospheres, corrosive industrial pollution, snow and ice. It has excellent load breaking and fault making capacity and satisfies the isolation requirements specified for load break switch. The earthed metal tank prevents all possible leakage currents across an open switch. RPS can be manually operated or motor operated for local and remote electric control, upgraded.


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Insulation level

Rated voltage

kV

15

27

38

Power frequency withstand voltage, 50 Hz

- to earth and between phases

kV

28

50

70

- across the isolating distance

kV

32

60

80

Lightning impulse withstand voltage

- to earth and between phases

kV

75

125

170

- across the isolating distance

kV

85

145

195

Current ratings

Rated normal current

A

400/630/800/1250

Mainly active load breaking current

A

400/630/800/1250

Number of breaking operations CO

times

400

Line-charging breaking current

A

1

1.5

2

Cable-charging breaking current

A

10

16

20

Earth fault breaking current

A

50

50

130

Cable charging breaking current

under earth fault conditions

A

28

28

80

No-load transformer breaking current

A

20

Short-circuit ratings

Short-time withstand current, Ik

kA/s

20 kA/4 s

20 kA/4 s

20 kA/4 s

Peak withstand current

kA

50

50

50

Short-circuit making current

kA

50

50

50

Number of making operations

- main switch 50 kA (CL E3)

times

5

5

5

- main switch 31.5 kA (CL E3)

times

10

10

10

- earthing switch 50 kA (CL E2)

times

3

3

3

- earthing switch 31.5 kA (CL E3)

times

5

5

5

Ambient air temperature limits

-40°C...+60°C

Mechanical endurance (number of CO operations)

- main switch

times

5000

5000

5000

- earthing switch

times

2000

2000

2000

Filling pressure (+20°C)

bar (abs)

1.4-1.5

1.4-1.5

1.8-1.9

Alarm pressure (+20°C)

- density switch

bar (abs)

1.2

1.2

1.65

- density gauge

bar (abs)

1.2

1.2

1.6

- low gas lock-out mechanism

bar (abs)

1.1

1.1

1.6

Weight

Composite bushing

kg

115

125

135

Porcelain bushing

kg

125

135

155

Motorize

Add 20kg

Degree of protection of the mechanism box

IP67

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