PKKZ-10 Series 10 kV Sets of outdoor distribution substations
Dimensional Drawing
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PKKZ-12-series sets of outdoor distribution substations are designed for connecting various mobile consumers to high-voltage power lines: excavators, drilling units, dredgers, compressors, capacitor banks, and for installation in trunk and branch networks.
PKKZ-12-series sets of outdoor distribution substations are separate compartments equipped with devices according to their functional purpose.
PKKZ-12-series compartments are used to power and protect the electrical equipment of large quarry energy consumers in distribution networks.
Design:
PKKZ-12-series compartment is a welded metal structure with integrated high-voltage equipment and connections, as well as measuring, signaling, protection, and control devices, made of high-quality steel sheets using precision machinery.
PKKZ-12 compartment is divided into three main sections:
– circuit breaker section;
– busbar section;
– control section.
PKKZ-12-series compartments of integrated outdoor distribution units include a system of mechanical and electromechanical interlocks that complies with all the safety requirements of state standards and other regulatory documents.
Designations of PKKZ-12-series compartments:
Key technical specifications of PKKZ-12-series sets of outdoor distribution substations:
| Technical parameters |
Parameter value |
| Rated voltage, kV |
6; 10 |
|
Maximum operating voltage, kV |
7,2; 12 |
| Rated busbar current, A |
630, 1250, 1600 |
| Rated circuit breaker disconnection current, kA |
16; 20; 25;31,5 |
| Thermal withstand current (short-time current), kA* |
16; 20; 25; 31,5 |
| Duration of thermal withstand current, sec |
3 |
| Rated electromagnetic withstand current of main circuits, kA |
51, 63; 81 |
| Rated power of built-in transformers, kVA |
25, 40 |
| Rated voltage of auxiliary circuits, V:
AC |
110, 220 |
| Insulation level according to GOST 1516.1 |
Level B |
| Type of insulation |
air |
|
Insulation for current-conducting parts |
with uninsulated busbars |
| Maintenance conditions |
with double-sided maintenance |
| Type of high-voltage connections |
cable/aerial |
| Degree of protection according to GOST 14254 |
IP34 |
| Climate version according to GOST-15150-69 |
У1 |
