01
ZGS11-12 Combined American Prefabricated Substation
Model meaning

Conditions of Use
◇ Altitude not exceeding 1000m;
◇ Ambient temperature: -35℃~+40℃;
◇ Relative humidity: daily average value is not more than 95%, monthly average value is not more than 90%;
◇ Installation location: A well-ventilated place without fire or explosion hazards, chemical corrosive gases, and a ground inclination of no more than 3 °.
Technical Parameters
NO. | Name | Unit | Technical Parameters |
1 | Rated voltage | KV | 10/0.4(high pressure/1 low pressure) |
2 | Maximum operating voltage | KV | 12 (high voltage side |
3 | Rated frequency | HZ | 50 |
4 | Rated capacity | KVA | 50-1600 |
5 | 1 minute power frequency withstand voltage | KV | 35 |
6 | Lightning impulse voltage | KV | 75 |
7 | Cooling method | Oil-immersed self-cooling | |
8 | High voltage backup fuse breaking current | KA | 50 |
9 | Plug-in fuse breaking current | KA | 25 |
10 | Ambient temperature | -35~+40 | |
11 | Coil allowable temperature rise | ℃ | 65 |
12 | No-load voltage regulation | ℃ | ±5%or±2×2.5% |
13 | Noise Level | db | 50 |
14 | Protection level | lp43 |
Installation Dimensions

Ordering Instructions
◇ Product operation location and special requirements;
◇ Provide product ordering drawings, which should include wiring diagrams, and should indicate transformer capacity, main component models and specifications, power distribution branch circuits and capacity;
◇ When electric energy metering and reactive power automatic compensation devices are required, the configuration requirements of the metering electric energy meter and mutual inductor shall be provided, and the capacity of the compensation capacitor shall be indicated;
◇ Indicate the requirements for product surface treatment;
◇ When ordering combined transformers, please specify terminal type or ring network type.
Examples of some product appearance drawings



