Prefabricated Substation(European Style Box)
Brief instruction of transmission substation:
This series substation,rated primary voltage is 40.5kV,rated secondary voltage is 0.4~12kV, three phase AC 50Hz. It is outdoor complete plant. This electrical substation usually using in city, township, factory, oil flied, wharf and so on. Its advantage is complete, small volume, convenient installation, and high integrated automation, safe and reliable and so on.This substation includes high voltage switchgear room, low voltage switchgear room, relay protection room and transformer room.
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The transformer room can be close type.
Floor chart:
Wiring schemes:
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Specification of Prefabricated Substation(European Style Box)
No. |
Items |
Unit |
Value |
||
1 |
Ratedvoltage |
Primary |
kV |
40.5 |
|
Secondary |
12; 0.69 |
||||
Subsidiary circuit |
V |
110; 220; 380 |
|||
2 |
Rated current |
Highvoltage circuit |
A |
400~1250 |
|
Lowvoltage circuit |
630~3150 |
||||
3 |
Rated frequency |
Hz |
50 |
||
4 |
Rated power |
kVA |
1250; 1600; 2000~20000 |
||
5 |
Rated insulation level |
Highvoltage side |
Power frequency |
kV |
95 |
impact |
185 |
||||
Lowvoltage side |
Power frequency |
42 |
|||
impact |
75 |
||||
6 |
Rated short time withstand current |
Highvoltage side |
kA |
20; 25; 31.5 |
|
Lowvoltage side |
25; 31.5; 40 |
||||
7 |
Rated peak withstand current |
Highvoltage side |
50; 63; 80 |
||
Lowvoltage side |
63; 80; 100 |
||||
8 |
Insulation level of transformer |
Power frequency |
kV |
65 |
|
Impact |
185 |
||||
9 |
Insulation level of subsidiary circuit |
2 |
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