YBM, YBP series of prefabricated substation is the combination ofthe HV electrical apparatus, transformer, and low voltage transformerequipments and therefore is used in the high-rise buildings, residentialdistricts, urban and rural construction, hi-tech development zone, small andmedium size enterprise, mine and oil fields and the temporary constructionsites to receive and distribute the power.
YBM, YBP series of prefabricated substation is complete set, smallsized, compacted structure, running safely, easy maintenance, and mobile. Andit only takes the 1/10-1/5 of the space of the same capacity of civilconstruction distribution, and therefore greatly reduces the construction cost.It can be used in the ring net distribution system, double power distributionsystem or radiator terminal distribution system. It is the new complete setequipment used for rural and urban substation construction and reformation.
YBM, YBP series of prefabricated substation is fully in accordancewith the standard of SD320-1992 (the technology of Boxes substation) and thestandard of GB/T 17467-1998 (HV/LV prefabricated substation). The shell is madeof non-metal, composite board or the steel sheet as per the users.
YBM substion main technical parameters:
Capacity: 50~4000KVA
Votage: 11/0.4KV, 13.8/0.4kv,20kv/0.4
HV switchgear: Vacuum type panel (630~3150A)/ SF6 panel(630A)
Transformer: S11 11/0.4KV 50~4000KVA
LV switchgear:630A~6300A
Technical parameters
Serial No. | Unit | Item | HV electrical apparatus | Transformer | LV electrical apparatus |
1 | Rated voltage Ue | KV | 7.2、12 | 6/0.4、10/0.4 | 0.4 |
2 | Rated capacity Se | KVA |
| P: 200~1250 |
|
M: 50~400 |
3 | Rated current le | A | 200~630 |
| 100~3000 |
4 | Rated drop-out current | A | Load switch400~630A |
| 15~63 |
KA | Composite apparatus |
5 | Rated short time withstand current (S) | KA(xs) | 20*(2) | 200~400KVA | 15*1 |
12.5*(4) | 400KVA | 30*1 |
6 | Rated withstand current (peak) | KA | 31.5、50 | 200~400KVA | 30 |
400KVA | 63 |
7 | Rated making current | KA | 31.5、50 |
|
|
8 | Power frequency withstand voltage 1min | KA | Phase-earth and phase-phase 32、40 | Oil-immersed:35/5min | ≤300V:2KV |
34、48 | Dry-type:28/5min | 300、600V:2.5KV |
9 | Lightning impulse | KV | Phase-earth and phase-phase 60、75 | 75 |
|
Isolation fracture:75、85 | 75 |
10 | Noise level | dB |
| Oil-immersed:55 |
|
Dry-type:65 |
11 | Protection degree |
|
| IP23D |
|
12 | External dimension | as per the capacity of the transformer |
