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China ZGS11-12 Combined American Prefabricated Substation - Reliable Solution from Leading Suppliers and Factory
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 / 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 | - | IP43 |
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
Frequently Asked Questions (FAQ)
What are the standard ambient temperature limits for this transformer?
The transformer is designed to operate within an ambient temperature range of -35℃ to +40℃.
What is the maximum installation altitude and ground inclination allowed?
The installation altitude should not exceed 1000 meters, and the ground inclination at the installation site must not be more than 3°.
What is the cooling method and protection level of this transformer?
The transformer uses an oil-immersed self-cooling method and features an IP43 protection level.
What capacity options are available for this system?
The rated capacity of the equipment spans from 50 KVA to 1600 KVA.
What critical information is required when ordering a combined transformer?
When ordering, you must specify the terminal type or ring network type, outline any special environmental requirements, provide wiring diagrams, component models, and indicate any surface treatment preferences.

