Outdoor Pole Switchgear KS-215
up to 10 kV
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Description
Pole switchgears (KS) are designed for operation in 3-phase 50 Hz and 60 Hz, 6 kV and 10 kV rated AC voltage overhead systems electric networks for a system with a neutral insulated or earthed via arc suppression coil, in moderate (N) climate, placement category 1 according to GOST 15150.
Specifications
| Parameter designation | Parameter value |
|---|---|
| High-voltage (HV) side rated voltage, kV | 6; 10 |
| High-voltage (HV) side maximum operating voltage, kV | 7,2; 12 |
| Rated current of main circuits, A | 630; 1000 |
| Rated breaking current of the chamber SUM with vacuum circuit breaker, kA | 20; 31,5 |
| Peak withstand current of cells with vacuum circuit breaker, kA | 32; 51 |
| Rated voltage of auxiliary circuits, V: – AC and DC protection, control and alarm circuits – voltage measuring transformers circuits – lighting | 220 100 36 |
Symbol structure
KS is a pole switchgear manufactured by Chelyabinsk Electric Equipment Plant LLC
Modification: 215
Rated current, A
Rated Voltage: 6, 10 kV
Climatic modification and placement category according to GOST15150-69
Structural design
Pole switchgear KS-215 consists of two modules: 1 - power equipment cabinet, 2 - control and protection cabinet.
Power equipment cabinet is a welded housing made of bent panels from 1 to 5 mm thick.
Two doors located on the cabinet side faces are used to provide access to the power equipment.
Vacuum circuit breaker, auxiliary transformer (AT), mating parts of feedthrough insulators and current transformers, as well as mechanical shutdown and vacuum circuit breaker position indication elements are arranged inside the cabinet. Auxiliary transformer may be installed out of the bounds of the cabinet if required. Slip-over current transformers, insulators and excess-voltage suppressors are located on the housing roof.
The housing design provides special load-lifting rings for KS-215 assembly. Cased socket is provided at the end surface for the control cabinet connection. Besides, valve designed for excessive pressure release is provided at the housing end surface. KS-215 mechanical shutdown is carried out by pulling the special ring located at the base of the cabinet using the hookswitch.
Low-voltage control cabinet is made of bent panels not less than 2 mm thick. Doubled-up door located at the front is used to provide access to the cabinet inner space. The cabinet accommodates relay protection and automationdevices.
If required the cabinet can be equipped with current DC circuits self-contained power supply unit and chamber (switchgear) GSM control.
Environmental durability requirements
Pole switchgears (KS) are operated in the open air at any time in a 24-hour period in all weather and seasons, and have the following resistance characteristics against environmental factors:
- ambient air temperature:
- for modification N1 – from -45 to +40°С;
- for modification NF1 – from -60 to +40°С;
- elevation above the sea level – 1000 m, max.;
- relative air humidity – 75 % at temperature of +15°С;
- atmospheric pressure – from 86.6 to 106.7 kPa;
- atmosphere type as per GOST 15150 – II (industrial);
- environment – non-explosive, free of explosive dust and aggressive gases which concentrations can destroy metals and insulation;
- seismic impact resistance as per GOST 17516.1 – up to 9 points on MSK-64 scale.