Product overview
ZGS11-12 series prefabricated substations (American type)With small volume, easy installation and maintenance, low noise, low loss anti-theft, overload capacity, ful protection and other characteristics.t is suitable for new residential areas, green belts, parks, stations hotels, construction sites, airports and other places
ZGS11-12 series prefabricated substations (American type), suitable for 10kV ring network power supply, dual power supply or terminal power supply systems, is used as substation, metering, compensation control and protection device.This product conforms to the following standards: GB/T17467-2020 “High voltage/Low Voltage Prefabricated Substations” and DL/T537-2018 “6-35KV BOX Substation Ordering Technical Conditions”
Model and meaning
Service condition
● Section: Service condition
● Altitude: not more than 1000m;
● Ambient temperature: -35℃ ~ +40℃ ;
● Relative humidity: daily average not more than 95%, monthly average not more than 90%;
● Installation place: no fire, explosion risk or chemical corrosive gas and well-ventilated, the ground dip angle is not more than 3°.
Technical parameter
Prefabricated substation technical parameter table
| No. | Item | Unit | Technical parameter |
|---|---|---|---|
| 1 | Rated voltage | kV | 12/0.4(HV/LV) |
| 2 | Max.operating voltage | kV | 12(HV side) |
| 3 | Rated frequency | Hz | 50 |
| 4 | Rated capacity | kVA | 50-1600 |
| 5 | 1 min power frequency withstand voltage | kV | 35 |
| 6 | Lightning impulse voltage | kV | 75 |
| 7 | Cooling code | Oil-immersed self-cooled | |
| 8 | High voltage backup fuse breaking current | kA | 50 |
| 9 | Plug-in fuse breaking current | kA | 2.5 |
| 10 | Ambient temperature | ℃ | -35 ~ +40 |
| 11 | Allowable temperature rsie of coil | ℃ | 65 |
| 12 | No-load voltage regulation | ±5% or ±2×2.5% | |
| 13 | Noise level | db | 50 |
| 14 | Protection level | IP43 |
Substation cable inlet and outlet construction drawing
Technical requirements
1. Refer to the actual size of the combination:
2. The surface of the concrete platform shall be flat, and the combined substation shall be fixed on the platform by pressing plate fixation;
3. The form of grounding bar and cable fixing bracket can be determined according to the actual situation;
4. Cable fixing frame and grounding bar should be embedded;
5. The location of the inlet and outlet cable hole is determined according to the specific situation;
6. There must be a gap of not less than 1.5m on the front of the switch after installation to facilitate operation.
7. Grounding grid can be made of 12 galvanized round steel or 40×4 galvanized flat copper, grounding resistance should meet the requirements of the power department.
