European Box-Type Prefabricated Substations

The ZBW (YBM) -12, 24, 40.5 series prefabricated substations, developed by our company, are meticulously designed products that synthesize the advantages of both domestic and international box-type substations, while integrating the actual power supply conditions in China and extensively incorporating user feedback. This series consists of one or more tightly combined boxes, integrating three core components: high-voltage distribution equipment, the power transformer, and low-voltage distribution equipment.

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Description
Parameter

For the enclosure structure, we offer diverse options for the box shell, including environmentally friendly non-metal materials, composite boards, rust-proof aluminum alloy boards, and aluminum-zinc coated boards with PVC imitation wood grain, ensuring adaptability and aesthetic appeal in various environments. A notable characteristic is its compact size, requiring minimal land occupation, and possessing a beautiful appearance that blends harmoniously with its surroundings.

These prefabricated substations boast strong completeness and a short installation period, allowing for quick deployment. In operation, they demonstrate safe and reliable performance, coupled with convenient maintenance. These combined advantages contribute to relatively high economic and social benefits.

The ZBW (YBM) -12, 24, 40.5 series prefabricated substations are broadly applicable, with a rated voltage range of 10-35kV and a rated capacity from 50-2500kVA. They are extensively used in buildings, residential areas, factories and mines, townships, hotels, hospitals, parks, and various temporary facilities for power supply needs.
Rated voltage:

High voltage side: 7.2kV, 12kV, 24kV, 40.5 kV

Low voltage side: 0.4/0.23 kV, 0.66/0.4kV

Rated capacity: 12 kV, 24kV: 50, 100, 125, 160, 200, 250, 315, 400, 500, 630, 800, 1000, 1250, 1600 kVA

40.5kV: 1000, 1250, 1600, 2000, 2500 kVA

Rated frequency: 50Hz

Rated short-time withstand current:

High voltage switchgear:

12kV-24kV 12.5kA (4s), 20kA (2s)

40.5kV Depends on the equipment used Low voltage switchgear: 0.4/0.23kV, 0.66/0.4kV

200-400 kVA 15kA(1s) 400-800 kVA 30kA(l1s)

1000 kVA and above Depends on the equipment used

Rated peak withstand current:

High voltage switchgear:

12kV: 31.5kA, 50kA

40.5kV: Depends on the equipment used

Low voltage switchgear:

200-400 kVA 30kA

400-800 kVA 63kA

1000 kVA and above Depends on the equipment used

Rated closing current:

12kV, 24kV 31.5kA, 50kA

40.5kV Depends on the equipment used

Rated insulation level:

1min power frequency withstand voltage:

0.4kV 2kV

12 kV 42 kV to ground, phase-to-phase, 48 kV at break

24 kV 65 kV to ground, phase-to-phase, 79 kV at break

40.5 kV 95 kV to ground, phase-to-phase, 115 kV at break

Transformer: 35 kV

Lightning impulse withstand voltage

12 kV 75 kV to ground, phase-to-phase, 85 kV at break

24 kV 125 kV to ground, phase-to-phase, 145 kV at break

40.5 kV 185 kV to ground, phase-to-phase, 215 kV at break