One-ended substations with insulated neutral and PKTPVR type transformers
Function, field of application
One-ended complete transformer substation with insulated neutral was designed to receive, convert and distribute electric power of three-phase alternating current with the frequency 50 Hz.
PKTPVR is designed to be used in energy supply systems of open cast mining and consumers in underground mines, etc.
Construction of PKTPVR.
Constructively substation is made as a kiosk type module and has built-up and welded construction. Framework is load-bearing and bears hardest dynamic impacts.
PKTPVR type substation is an assembled set that is simple and easy to use.
Substation consists of following structural components (according to GOST 14695-80 and TU 34.11.10873-93):
1) HV switchgear cabinet;
2) LV switchgear cabinet;
3) High-voltage bushing;
4) Transformer’s chamber.
HV switchgear cabinet if disconnector RVZ is installed is divided into two chambers: chamber, where HV disconnector with safety fuses and aerial fuses are placed and chamber where drives of main switch and grounding blades.
Transformer’s chamber has swinging gates on two sides, by means of those gates access into chamber is performed and installation and deinstallation of equipment including power transformer if vertical jumper is removed.
All equipment of 0.4 kV is installed in LV switchgear cabinet.
All gates are equipped with locks fixing gates in closed position, locks of HV switchgear’s cell have tricks, different from locks of LV switchgear’s cell.
High-voltage bushing is an enclosed current-conducting wire with metal sheath and has inside-fixed busbar.
Strapping of substation is performed by means of frames welded on the top of the body.
|
Substation type |
В, mm |
L, mm |
L, mm |
Н, mm |
Weight, kg |
|
PKTPVR-25 |
1500 |
1800 |
2480 |
2200 |
1500 |
|
PKTPVR -40 |
1560 | ||||
|
PKTPVR -63 |
1670 | ||||
|
PKTPVR -100 |
1800 | ||||
|
PKTPVR -100 |
1580 |
2190 |
2865 |
2490 |
2300 |
|
PKTPVR -160 |
2500 | ||||
|
PKTPVR -250 |
2860 | ||||
|
PKTPVR -400 |
3100 | ||||
|
PKTPVR -630 |
2245 |
2245 |
2855 |
2675 |
4080 |
Technical data
|
Item |
Value |
|
Rated power of power transformer, kVA |
25; 40; 63; 100; 160; 250; 400; 630 |
|
Rated voltage at the HV side, kV |
6; 10 |
|
Rated voltage at the LV side, kV |
0,4 |
|
Execution of HV bushing |
Aerial |
|
Execution of LV terminal |
Cable |
|
Offset disconnector type (for aerial bushing) |
RLND disconnector |
|
combination of bushing/feeder units at the LV side |
А/А |
With aerial bushing
|
Substation type |
В, mm |
L, mm |
L, mm |
Н, mm |
|
PKTPVR-25 |
1520 |
2560 |
3000 |
1700 |
|
PKTPVR -40 |
1750 | |||
|
PKTPVR -63 |
1850 | |||
|
PKTPVR -100 |
1800 |
2760 |
3200 |
2400 |
|
PKTPVR -160 |
2500 | |||
|
PKTPVR -250 |
3000 | |||
|
PKTPVR -400 |
2250 |
3260 |
3700 |
3400 |
|
PKTPVR -630 |
4300 |
Technical data
|
Item |
Value |
|
Rated power of power transformer, kVA |
25; 40; 63; 100; 160; 250; 400; 630 |
|
Rated voltage at the HV side, kV |
6; 10 |
|
Rated voltage at the LV side, kV |
0,4 |
|
Execution of HV bushing |
Aerial, cable |
|
Execution of LV terminal |
cable |
|
HV built-in disconnector type |
RVZ disconnector |
|
Offset disconnector type (for aerial bushing) |
RLND |
|
combination of bushing/feeder units at the LV side |
А/А |
