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VCHRP-TM an universal VFD for AC industrial loads up to 17,500 kVA with 3 kV, 6 kV and 10 kV nominal output voltage. Due to high quality of development and production, VCHRP-TM can operate with the already installed and the new asynchronous or synchro- nous motors.
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Single-end service assembled chamber of KSO 207V series.

KSO 207V single-end service assembled chamber is designed to receive and distribute electric power in electrical facilities with three-phase 50 or 60 Hz alternating current, 6 or 10 kV voltages and with insulated neutral or neutral with Peterson-coil and made according with BKGI.674712.002 TY specification (.674712.002 ).

KSO switchgear are made for domestic use as well as for export and can be used as 6-10 kV switchgear (including installment in modular building) designed to receive and distribute electric power in industry, agriculture, electrical station and substation for railroad electrification.

Operational principal is defined by arrangements of main and auxiliary circuitries.

KSO switchgears can be used as high voltage devices for complex transformer substations of KTP-10/0,4 (-10/0,4) and BMKTP-10/0,4 (-10/0,4) series with power from 100 to 2500 kVA.

Climatic versions are Y(moderate) or T(warm), and area class is 3 according to GOST 15150-69.

Naming conventions for KSO 207V type switchgear

KSO-207 V-<A> <B> <C>

- chamber

S - assembled

- single-end service

207 - Type and year of development

V - distinguishing index of CHEAZ-ELPRY Ltd manufacturer.

<A> - Index of main-circuit arrangement

<B> - rated current

<C> - Climatic versions and area class according to GOST 15150


KSO switchgear with 630 A rated current, 01 VV main circuit arrangement and climatic version Y3:

KSO 207V-01VV-630 Y3 BKGI.674712.002 TY.

KSO-207V with 1250 rated current, 03VV main circuit arrangement and climatic version T3:

KSO 207V-03VV-1250 T3 BKGI.674712.002 TY.

General quantities and technical data

Rated values of climatic version according to GOST 15150-69 and GOST 15543.1-89:

- Ambient temperature: -45 C to +40 C, -25 C to +40 C for switchgear using SIEMENS SION breaker;

- Atmospheric type is II (industrial) as to GOST 15150-69;

- Altitude: up to 1000m.

- The environment is not explosive, not containing conductive dust, corrosive gases and vapors in high concentrations, which destroying metal and insulation.

General quantities and technical data for KSO-207V

Name of the parameter value

Linear rated voltage, kV
-    for 50 Hz frequency (for Y3 climatic version)
-   for 60 Hz frequency (for T3 climatic version)

6; 10
6,6; 11

Rated normal voltage (line), kV

7,2; 12

Main circuit rated current, A
-    for 50 Hz frequency (for Y3 climatic version)
-    for 60 Hz frequency (for T3 climatic version)

630; 1000; 1600
800; 1250; 1600

Rated breaking current, kA

12,5; 20; 25; 31,5

Thermal short-time current rating (3 seconds duration), kA

20; 31,5

Short-time withstand current, kA

51; 81

* Rated current of current transformer,

50; 75; 100; 150; 200; 300; 400; 600; 800; 1000; 1500

Rated current of busbar,
-    for 50 Hz frequency (for Y3 climatic version)
-    for 60 Hz frequency (for T3 climatic version)

 630; 1000; 1600
800; 1250; 1600

Rated current of busbar bridge, A
-    or 50 Hz frequency (for Y3 climatic version)
-    for 60 Hz frequency (for T3 climatic version)

630; 1000; 1600
800; 1250; 1600

Rated voltage of supplementary circuit, V:
-    circuits of protection, control and detection of AC and DC current, V
-    circuits of voltage transformer, V
-    circuits of auxiliary needs transformers, V
Lighting circuits:
- inside KSO panels, V
- outside KSO panels, V

220; 380


Conventional fusing current,

3,2; 5; 8; 10; 16; 20; 31,5 ÷ 160

Rated power of auxiliary needs transformers, kVA


* Thermal short-time rating and Short-time withstand rating of transformers are accorded to they technical characteristics.

Classification of KSO switchgear

Name of the parameter


Insulation level according to GOST 1516.1

with normal insulation

Type of insulation

air insulation


Presence of insulation of current conducting parts of main circuit

with uninsulated bridges

with insulated bridges

Presence of withdrawable elements in panels

With withdrawable elements

Without withdrawable elements

System of busbar

With one set of busbar

Type of service

Single-end or double-end service

Type of linear high-voltage feeders

cable or bridge

Presence of door in panels with withdrawable cart

Door is presented

Type of control

Local and remote control

Protection class as to GOST 14254


Types of switchgears depending on inline equipment

- with high voltage breakers;

- with pluggable connector;

- with voltage transformer;

- with fuses;

- with transformers;

- with static capacitors;

- with vacuum contactor;

- combined (with voltage transformers and surge arresters)


Commutation devices used in KSO switchgears is:

- /L-10/630-1000 according to TSHAG.674152.004 TY

- -10-20/630-1600 according to KYUG.674152.012 TY

- SIEMENS SION 31 800, 1250 according to IEC (DIN EN) 60265-1

In special request other types of breakers can be installed.

KSO switchgears are made according to:

- main circuit arrangements listed in appendix B

- typical schemes of auxiliary circuits listed in volume II

- main and auxiliary circuits arrangement provided by customer

Manufacturer can replace above mentioned devices with analogs.


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