ZBW SERIES COMBINATION TRANSFORMER SUBSTATION
General
To meet requirement of urban network construction, ZBW series combination substation is designed by our company with is own advantage such as compact, complere unit, reliable and safe, convenient maintenance, artistic appearance and so on. It is applicable for the outdoor administration of power supply such as high building, residential area, stations and wharfs, ports, factory and park.
FEATURE
1. The frame of substation is made of steel and angle iron galvanized to have the enough mechanical strength
2. Cold-rolled steel sheet, stainless steel, aluminum alloy sheet or compound colorful sheet is used for the enclosure.
3. Each cubicle is separated by steel sheet to be different shape inside
4. The illuminating devices are installed inside L. V. &H. V. Cubicles and transformer cubicle for supervision and maintenance.
5. The cover is double-layer to prevent the heat from increasing temperature.
6. Natural ventilation is taken for transformer. When the temperature inside the transformer cubicle is higher than the set temperature, the fan installed on the top will start to work and control the temperature.
7. Sealing devices are put on the turning parts to be moisture-proof.
8. Perfect protection and convenient operation, particularly "five-proof" functions on H. V. Side ensures the security of maintenance.
9. The product is good-looking and natural in certain environment
OPERATION CONDITION
Altitude: <1000m
Ambient temperature: -25º C- +40º C
Wind speed: <30m/s
Relative humidity: <90%
General
To meet requirement of urban network construction, ZBW series combination substation is designed by our company with is own advantage such as compact, complere unit, reliable and safe, convenient maintenance, artistic appearance and so on. It is applicable for the outdoor administration of power supply such as high building, residential area, stations and wharfs, ports, factory and park.
FEATURE
1. The frame of substation is made of steel and angle iron galvanized to have the enough mechanical strength
2. Cold-rolled steel sheet, stainless steel, aluminum alloy sheet or compound colorful sheet is used for the enclosure.
3. Each cubicle is separated by steel sheet to be different shape inside
4. The illuminating devices are installed inside L. V. &H. V. Cubicles and transformer cubicle for supervision and maintenance.
5. The cover is double-layer to prevent the heat from increasing temperature.
6. Natural ventilation is taken for transformer. When the temperature inside the transformer cubicle is higher than the set temperature, the fan installed on the top will start to work and control the temperature.
7. Sealing devices are put on the turning parts to be moisture-proof.
8. Perfect protection and convenient operation, particularly "five-proof" functions on H. V. Side ensures the security of maintenance.
9. The product is good-looking and natural in certain environment
OPERATION CONDITION
Altitude: <1000m
Ambient temperature: -25º C- +40º C
Wind speed: <30m/s
Relative humidity: <90%
| No | Item | Unit | High voltage apparatus | Transformer | Low voltage apparatus |
| 1 | Rated voltage Ue | kV | 7.2,12 | 6/0.4 , 10/0.4 | 0.4 |
| 2 | Rated capacity Se | kvA | 200~1250 | ||
| 3 | Rated current Le | kvA | 200~630 | 100~3000 | |
| 4 | Rated drop out current | A | switch disconnector 400~630A | 15~63 | |
| kA | subject to fuse if the combined appliance is adopted | ||||
| 5 | Rated short time withstand current | kA | 20(2S) | 200~400kvA | 15(1S) |
| 12.5(4S) | 400kvA | 30(1S) | |||
| 6 | Rated crest withstand current | kA | 31.5 , 50 | 200~400kvA | 30 |
| 400kvA | 63 | ||||
| 7 | Rated making current | kV | 31.5 , 50 | ||
| 8 | 1 min power frequency withstand current | kV | phase to earth phase to phase 42 , 30 | Oil-immersed transformer: 35/5 min | ≤300V when 2kV |
| across isolating distance 48 , 34 | dry type: 28/5 min | 300, 660v when 2.5kV | |||
| 9 | Lightning impulse withstand current | kV | phase to earth phase to phase 85 , 75 | 75 | |
| phase to earth phase to phase 85 , 75 | |||||
| 10 | Noise | dB | Oil-immersed transformer: <55 | ||
| dry type: <65 | |||||
| 11 | Protection class | IP33 | IP23 | IP33 | |
| 12 | Outline dimension | Choose different dimension according to the capacity and type of power transformer | |||