Prefabricated chambers of unilateral maintenance series 319

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Prefabricated chambers of unilateral maintenance series 319

Relay installation of a protective type – a Prefabricated chambers of unilateral maintenance series 319 of one-sided maintenance, manufactured at the factory. Permanently installed switching devices are provided – rated voltage 6, 10 kV.
The purpose of the device is to operate in installations of 3-phase alternating current networks (frequency 50 Hz) with a neutral of various types – isolated, grounded – for the purpose of receiving and distributing electricity.
Two-row installation is possible, but then busbar bridges with disconnecting elements are used in the configuration. The use of bridges without disconnectors is permitted.

The distance from the facade of one chamber to the facade of the neighboring one can be:
– 200 cm;
– 250 cm;
– 300 cm;
– 350 cm.

An end panel is used for mounting drives of disconnecting busbar bridges

Symbol Structure Prefabricated chambers of unilateral maintenance series 319:

Prefabricated chambers of unilateral maintenance
Prefabricated chambers of unilateral maintenance series 319
319
Modification
ХХ
Scheme number
ХХ
Rated current, A
УЗ
Climatic version and placement category according to ГОСТ 15150

Main technical parameters Prefabricated chambers of unilateral maintenance series 319
Parameter name	Parameter value
Rated highest voltage, kV	6; 10
Maximum operating voltage, kV	7,2; 12
Frequency Hz	50, 60
Rated current of main circuits, A	630, 1000, 1600, 2000
Rated breaking current of the circuit breaker, kA	12,5; 20; 31,5
Current of electrodynamic firmness, kA	51
Thermal resistance current (up to 3 s), kA	20
Rated voltage of additional circuits, V
– circuits for protection, control and signaling of direct and alternating current	~220 (=220)
– voltage transformer circuit	~100
– lighting circuits inside the chambers	~36, ~220
– auxiliary transformer circuits	~220 (~380)
Climatic version according to ГОСТ 15150	УЗ
Rated operating mode	Long
Maintenance method	Unilateral
Type of service	Periodic

Prefabricated unilateral service chambers of the KSO-319 series comply with TU U 27.1-40169080-002:2018 “Complete distribution devices for voltage from 6 to 10 kV.”.