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Disconnector RD(Z)-150/1000

1501000
Disconnectors of the RDZ series for 150 kV are designed to switch on and off de-energised sections of the electrical circuit under voltage, transformer no-load currents, charging currents of overhead and cable lines, and grounding of disconnected sections using grounding devices.

Disconnectors are available in single-pole, two-pole and three-pole versions. The pole to which the actuator is connected is the leading pole. The actuators are designed to operate the disconnectors. The drive shafts of the main circuit and the earthing circuit are rotated
- manually by means of PRG drives;
- automatically by means of PD-14 motor drives (or analogues). Details
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Description
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Performance

Disconnectors of the RDZ series for 150 kV are designed to switch on and off de-energised sections of the electrical circuit under voltage, transformer no-load currents, charging currents of overhead and cable lines, and grounding of disconnected sections using grounding devices.

Disconnectors are available in single-pole, two-pole and three-pole versions. The pole to which the actuator is connected is the leading pole. The actuators are designed to operate the disconnectors. The drive shafts of the main circuit and the earthing circuit are rotated

– manually by means of PRG drives;

– automatically by means of PD-14 motor drives (or analogues).

Specifications
Rated voltage, kV 220 150
Maximum operating voltage, kV 170
Rated current, A 1000 
Rated frequency, Hz 50
Rated short-term current (thermal resistance current), kA 25
Maximum peak of rated short-term withstand current (electrodynamic resistance current), kA 63
Time of the rated short-term withstand current (short circuit time), s:

– for main knives

– for grounding knives

  

3

1
Weight of one pole, kg 370

The electrical strength of the insulation meets the requirements for disconnectors of voltage class 150 kV according to GOST 1516.3-96.

The leakage path length of the outer insulation of disconnectors I, II or III according to GOST 9920 is available upon request.

The disconnectors are designed for operation at

– altitude up to 1000 m above sea level;

– ambient temperature from minus 60 to plus 40°C;

– average annual relative humidity of 80% at a temperature of plus 15°C;

– maximum wind pressure of 700 Pa (corresponds to a wind speed of 34 m/s) in the absence of ice;

– maximum wind pressure of 140 Pa (wind speed of 15 m/s) in case of ice crust formation on the surface up to 10 mm thick.

– the maximum total mechanical load on the outputs of one pole (from the wires connected taking into account wind loads and ice formation) is 1000 N, provided that it is evenly distributed at the outputs.

The disconnectors are not intended for operation under strong shaking, vibration or shock.

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