Ningbo Tianan (Group) Co.,Ltd.
Ningbo Tianan (Group) Co.,Ltd
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Promotional Various Durable Using Power Transformer Mobile Compact Substation
The prefabricated substation combines the high voltage electric apparatus, transformer, low voltage electric apparatus to a compact whole set power distribution device, which is suitable for the urban high rise building, resident community, industry park, mine and oil field, field operations and construction field, and it is used to accept and distribute the electrical energy in the distribution system.
This product has the advantages of high performance, compact structure, safe and reliable operation, easy maintenance and it is removable. Compared with normal transformer substation having the same capacity, it only takes 1/10-1/5 of the area taken by the normal transformer substation, which greatly reduces the design workload and the construction workload, the construction work and the construction cost. It is one of the advanced equipment used in the construction and transformation of the transformer substation in the city and town at present.
Product technical parameter
S/N |
Name | Unit | Parameter | ||
| 1 | Rated voltage | KV | 12 | ||
| 2 | Rated current | A | 315 | 630 | |
| 3 | Rated frequency | Hz | 50 | ||
| 4 | Rated short-circuit withstand current | kA/2s | 12.5 | 20 | |
| 5 | Rated peak withstand current | kA | 31.5 | 50 | |
| 6 | Mechanical endurance | times | 2000 | ||
| 7 | 1 min power withstand voltage (phase-to-phase, phase-to-earth) | kV | 42 | ||
| 8 | Lightning impulse level (phase-to-phase, phase-to-earth) | KV | 75 | ||
| Rated voltage | Fuse rated current A | Rated Max. breaking current kA | Remark |
| 15.5 | 63, 80,100,125,150 | 50 | off line |
| Rated voltage | Continuous operating voltage | DC reference voltage (1mA) | Nominal discharging current | Nominal discharging current residual | 2ms square-wave current withstand value |
| 17kV | 13.6kV | ≥24kV | 5kA(peak value) | ≤45kV (peak value) | ≥250A(peak value) |
Parameter of 11kV oil immersed load switch
Table 1
Parameter of 11kV fuse
Table 2
Parameter of lightning arrester
Table 3
Main technical parameter of transformer
Voltage combination
Rated voltage of HV side: 12kV
Rated voltage of LV side: 0.27kV, 0.3kV, 0.315kV, 0.4kV
HV tapping range+5% or + 2x2.5%
Connecting symbol: Dyn11 or Yyn0
Condensation controller and other auxiliary equipment can be added in the body as per clients' requests.
Insulation class: A class
No. of phases: three
Note: As per different requirement from client, the capacity of transformer can be customized.