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KSO-314У

Features

• Low price

• Simple design

• Design is free from driving rods for control of switching devices

• Serviceability

 

Design

KSO-314UM chambers are unitized and irrespective of the arrangement of the main circuit electrical connections have similar design of the main units. Each KSO chamber is a welded metal structure with main circuit equipment inside: load break switch VNA series, disconnector RVZ series, earthing switch RV series, current transformers, and voltage transformers. Switching devices are located in the middle part of the chamber on the side panel, the control drives are located on the front panel of the chamber. The drives are operated via removable handle.  The busbars are located in the top part of the camera in one horizontal plane. Busbars are accessed via the roof. In the top front part of the chamber there is a box with a door that fences the busbars on the front side and serves for laying the trunk of the switchgear auxiliary circuits. Access to the camera is provided through the door with a window to inspect the inner zone. Each chamber is lined with a metal sheet on the left end face. LED lights are used for lighting of the cell housing interior.

Interlock between the load break switch and the earthing disconnectors operates due to design features of the load break switch drives and grounding disconnectors. There is mutual mechanical interlock between the drives, which prevents tripping of the load break switch when the earthing switch disconnector is closed and vice versa. There is interlock against access to inside of the chamber, when the main blades of the load break switch (disconnector) are closed;

KSO chambers can be arranged in single-row and double-row layout. Double-row switchgear requires busbar bridges with disconnector and load break switch. Busbar bridge disconnector drives are mounted on the end panels, which also serve as fencing for the switchgear busbars. The bus bridge with disconnectors is installed only on the end chambers of the switchgear.

Grounding of the switchgear busbars can be implemented in a chamber with a voltage transformer or in separate chambers.

Basic technical parameters

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Rated voltage, kV

6; 10

Max. operating voltage, kV

7.2; 12

Rated frequency, Hz

50

Busbar rated current, A

630

Main circuit rated current, A

630

Control/auxiliary circuit rated voltages, V:

- control AC

- voltage transformer circuits

- circuits for lighting inside the chambers

- auxiliary transformer circuits

 

 

220

100

12

380

Rated switch breaking current, kA

20

Short-time withstand current, kA

20 (depends on short-time withstand currents of build-in current transformers)

Withstand current time, s

1

Peak withstand current, kA

- chamber with load break switch

- chamber with disconnector

 

51

20

Breaking capacity of the load break switch in normal mode, number of trips

10

Min. mechanical life before overhaul, number of operations

2,000

Rated primary current of current transformers, A

30; 50; 75; 100; 150; 200; 300; 400; 600

HV fuse fusible link current, А

2…100

Dimensions of chambers, (H х W х L), mm:

2,080 х 550 х 1,000

Max. weight, kg

250

Insulation as per GOST 516.3-96

Normal, level "b"

Insulation type

Air

Insulation of the main circuit busbars

With uninsulated or partially insulated busbars

Enclosure protection class as per GOST 14254-96

front side - IP 31; rest - IP00

Service type

One-side service

Withdrawable  elements

No withdrawable elements

Type of line HV bays

Cable and bus

 

 

 

One-side service chamber type depending on built-in equipment and bays

With load break switch

With disconnector

With load break switch and fuses;

With earthing switch

With current transformers

With voltage transformers

With auxiliary transformer;

Combined

Control type

Local

Climatic modification as per GOST 15150

UHLZ

Ambient operating temperature, °С

+40 … -25

Max. altitude above sea level, m

1,000

Service life, years

30

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©1999-2018 ООО TCN-electro

 

Sale Department for the Nizhny Novgorod region: +7 (831) 275-888-9

Regional sale department (Russia and CIS countries): +7 (495) 789-49-68

 

7 A, ul. Elektrovoznaya, Nizhny Novgorod, Russia, 603108

office@tcn-nn.ru