ZBW1-12 Series Combined Substation (Cedar-Type)
Category:
Box-type substation
Keywords:
ZBW1-12 Series Combined Substation (Cedar-Type)
Detailed introduction:
The ZBW1 series of high- and low-voltage prefabricated substations is a product line independently designed by our factory to meet the needs of urban grid construction. It features a compact structure, strong system integration, safe and reliable operation, convenient maintenance, and an aesthetically pleasing appearance. The series is widely used in high-rise buildings, residential communities, railway stations, docks, ports, parks, shopping malls, industrial and mining enterprises, and other settings. It can be employed in ring-network distribution systems as well as serve as a radial-grid terminal power supply. In 1991, this product was the first in China to pass a joint appraisal conducted by the Ministry of Machinery and Electronics and the Ministry of Energy, with performance reaching the advanced domestic level.
Terms of Use:
◇Altitude not exceeding 1000 m;
◇Ambient temperature: maximum 40°C, minimum -25°C
The highest monthly average temperature shall not exceed 35°C.
The annual average maximum temperature does not exceed 25°C:
◇Relative humidity: daily average not exceeding 95%, monthly average not exceeding 90%; ◇Maximum daily temperature difference: 25°C
◇Solar irradiance: 0.1 W/cm² (wind speed 0.5 m/s):
◇ Outdoor wind speed shall not exceed 35 m/s;
◇Contamination Level: Level III;
◇Rainproof rating: Level 3:
◇ The installation site shall have a tilt of no more than 3 degrees:
◇Seismic resistance: ground horizontal acceleration of 0.2g
Ground vertical acceleration: 0.19;
◇Installation location: A location free from fire and explosion hazards, severe contamination, chemical corrosion, and violent vibration.
When the above-mentioned operating conditions cannot be met, the user shall consult with the manufacturer.
Box structure:
- The substation framework is fabricated from galvanized channel and angle steel, providing adequate mechanical strength and rigidity.
- The enclosure material may be cold-rolled steel sheet, stainless steel sheet, aluminum alloy sheet, composite color-coated sheet, or glass-fiber-reinforced cement board.
- Each room in the substation is separated from the others by steel partitions to form independent compartments, and each compartment is equipped with lighting.
- The substation roof features a double-layer structure that effectively prevents thermal radiation from raising the indoor temperature while providing excellent ventilation.
- An automatic ventilation system is installed on the roof of the transformer room to control the room temperature.
- The enclosure color is customizable to harmonize with the surrounding environment.
| Project | Unit | Parameters |
| High-voltage unit | ||
| Rated voltage | kilovolt | 12 |
| Rated frequency | Hertz | 50 |
| Rated current of the main busbar | A | 630 |
| 1-minute power-frequency withstand voltage to ground and between phases/isolation breaks | kilovolt | 42/48 |
| Lightning impulse withstand voltage to ground and between phases/isolation breaks | kilovolt | 75/85 |
| Rated short-time withstand current | kA/s | February 25 |
| Rated Peak Withstand Current | kA | 63 |
| Rated short-time making current | kA | 50 |
| Rated Transfer Current | A | 1500 |
| Fuse breaking current | kA | 31.5 40 |
| Low-voltage unit | ||
| Rated voltage | V | 400 |
| Rated current of the main circuit | A | 100~4000 |
| Rated Ultimate Short-Circuit Breaking Capacity | kA | 80 |
| Rated short-circuit breaking capacity | kA | 50 (65) |
| Rated short-time withstand current | kA/1s | 50 (65) |
| Branch current, compensation capacity | As per user request | |
| Transformer Unit | ||
| Rated capacity | kVA | 30~2000 |
| Impedance Voltage | % | 4 4.5 |
| Tap range | % | ±2×2.5 ±5 |
| Connection Group | Y, in0 D, in11 | |
| Box body | ||
| Enclosure Protection Rating | IP23 | |
| Sound level | decibel | ≤50 |
Note: The parameters are illustrated using our company’s HXG26-12 high-voltage switchgear, TANWI series intelligent frame circuit breakers, and S9-M oil-immersed transformers as examples.
Consult now
Contact us
Address: No. 816 Jinghua Road, Ningbo National High-tech Zone, Zhejiang Province
Phone: +86-0574-87916011 (International)
E-mail: export@tianandl.com
Phone: +86-0574-87900000 (Domestic)
Email: sales@tianandl.com
Copyright © Tianan Electric