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Box Substation
The box-type substation (also called prefabricated substation) is an integrated and modular distribution equipment, which combines high-voltage switchgear, transformers, low-voltage distribution devices, etc. in a closed or semi-closed box. It is widely used in power distribution and voltage conversion in power systems.
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Box Substation
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DESCRIPTION
Product Introduction
The box-type substation (also called prefabricated substation) is an integrated and modular distribution equipment, which combines high-voltage switchgear, transformers, low-voltage distribution devices, etc. in a closed or semi-closed box. It is widely used in power distribution and voltage conversion in power systems.
Structure
Box-type substations are usually divided into three parts, with a modular design:
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Equipped with high-voltage switchgear (such as load switches, fuses, lightning arresters, etc.), responsible for receiving 10kV or 35kV high-voltage power supply.
Common line entry methods: ring network type (such as HXGN cabinet) or terminal type.
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The core part, with built-in oil-immersed or dry-type transformers (usually with a capacity of 50kVA~2500kVA), realizes the conversion from high voltage to low voltage (such as 10kV/0.4kV).
Equipped with temperature control, heat dissipation system (such as fans, shutters) and explosion-proof pressure relief devices.
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Low-voltage distribution cabinet (such as GGD, GCK cabinet), including circuit breakers, metering instruments, capacitor compensation devices, etc., distributes 400V power to the user end.
The shell material can be stainless steel, aluminum alloy or non-metallic environmentally friendly materials, with a protection level of IP23-IP54.
Technical Specification
| High Voltage | Rated Voltage | 10 kV / 35 kV | Input voltage level |
| Rated Current | 630 A - 1,250 A | High-voltage switchgear capacity | |
| Transformer | Rated Capacity | 50-2,500 kVA | Oil-immersed / Dry-type options |
| No-load Loss | ≤300 W (oil) / ≤800 W (dry) | Critical energy efficiency metric | |
| Impedance Voltage | 4%-8% | Short-circuit current limitation | |
| Low Voltage | Rated Current | 1,600 A-4,000 A | Main busbar output capacity |
| Short-circuit Withstand | 50 kA-80 kA (1s) | Short-circuit withstand capacity | |
| Environment | Operating Temperature | -25°C to +40°C | Custom thermal control for extreme climates |
| Altitude Limit | ≤1,000 m | Derating required above limit | |
| General | Protection Rating | IP23-IP54 | Dust/water resistance level |
| Noise Level | ≤55 dB (1m distance) | Dry-type transformer standard |
Features
1. Compact and efficient: The area is only 1/10 of that of a traditional substation, suitable for areas with limited land.
2.Quick deployment: Prefabricated in the factory, on-site installation only requires basic construction and commissioning, shortening the cycle by more than 70%.
3.Strong environmental adaptability: Anti-sand, moisture-proof, and corrosion-resistant design, can operate at -25℃~+40℃.
4.Flexible configuration: Supports ring network power supply, dual power supply access, and can expand photovoltaic/energy storage interfaces.
5.Safe and reliable: Fully insulated design, five-protection interlocking mechanism, reducing the risk of electric shock.
Application
Urban power distribution: residential and commercial areas replace traditional power distribution rooms to save space;
Industrial power supply: factories and mines are adapted to high loads and harsh environments;
New energy systems: photovoltaic/wind farm grid connection, integrated energy storage interface;
Emergency scenarios: temporary power supply for construction sites and post-disaster situations, supporting rapid deployment;
Frontier fields: matching charging stations, 5G base stations and microgrid needs.
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Factory Address:500 meters southeast of Yilong Bridge in Yichuan, Luoyang, China