Prefabricated Chambers of Unilateral Service PCUS-393-M
Prefabricated Chambers of Unilateral Service PCUS-393 and bus bridges are installed in switchgear assemblies with a rated voltage of 10 (6) kV and are designed for the distribution of 50 Hz alternating current electrical power.
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The list of Prefabricated Chambers of Unilateral Service (PCUS), bus bridges, circuit diagrams, and brief technical characteristics is provided in Table 1.
The general arrangement and overall dimensions are shown in Figure 1.
Climatic version: U3 in accordance with GOST 15150.
Degree of protection in accordance with GOST 14254:
IP30 — for the front side of the enclosure (with the doors closed) and the side walls of the chambers.
IP00 — for the remaining chamber sections.
The switchgear assembly complies with TU U 27.1-45149048-002:2024.
To order a Prefabricated Chamber of Unilateral Service (PCUS), a completed technical questionnaire specifying the required equipment parameters must be submitted.
Diagram 1
Parameter
Value
Rated voltage (line-to-line), kV
6; 10
Maximum operating voltage, kV
7.2; 12
Rated power supply frequency, Hz
50
* Rated current of main circuits, A:
- busbars
630
- chambers with load-break switches
630
- chambers with disconnectors
630
- chambers with fuses
see below
- bus bridges
630
* Fuse-link rated current, A:
at Un = 6 kV
31.5; 50; 80; 100; 125
at Un = 10 kV
31.5; 40; 63; 80; 100
Electrodynamic withstand of main circuits, kA
41
Thermal withstand of main circuits, kA
16
Table 1.1 Technical Specifications
Note: * the rated current of the chamber or bus bridge corresponds to the rated current of the incoming device or the rated current of the fuse link.
Name and Type
Application
Electrical Parameters
Weight, kg
U, kV
I, A
PCUS-393-M
Line chamber with disconnector
10
630
140
Table 1.2 Chamber Types
Chamber Type
Single-Line Diagram
Type of Main Device
PCUS-393-M
Diagram 1
VVNA-Pp-10/630; PT; OPNp-10
Table 1.3 Single-Line Electrical Diagrams
Associated products
Provide maximum protection for electrical systems in switchgear assemblies.
