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High-Voltage Switchgear
KYN28-12 Metal-Clad Withdrawable Medium Voltage Switchgear
33kV high voltage switchgear

Scope of Application:The 33kV high-voltage switchgear is designed for power distribution and control in industrial plants, power generation stations, and substations. It serves as a key component in medium-capacity power distribution networks, ensuring reliable energy transmission, protection, and monitoring.

Rated Voltage: 33kV
Rated Current: 630A / 1250A / 1600A / 2000A / 2500A / 3150A
Rated Short-Circuit Breaking Current: 25kA / 31.5kA / 40kA
Rated Short-Time Withstand Current (1s/3s): 25kA / 31.5kA / 40kA
Rated Peak Withstand Current: 63kA / 80kA / 100kA
Insulation Level: Power frequency withstand voltage 70kV, lightning impulse withstand voltage 170kV
Protection Class: IP4X (enclosure) / IP2X (compartments)

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Ring Main Unit (RMU)
Ring Main Unit (RMU)

Scope of Application:The Ring Main Unit (RMU) is a compact switchgear device used in medium-voltage power distribution systems (typically 10kV–35kV). It is suitable for urban power grids, industrial parks, commercial buildings, rail transit, renewable energy generation, and other applications, enabling ring-network power supply, line protection, and power distribution.

Parameters:Rated Voltage: 10KV/11KV/12kV / 24kV / 40.5kV
Rated Current: 630A / 1250A / 2500A
Short-Circuit Breaking Capacity: 20kA / 25kA / 31.5kA
Protection Level: IP67 (gas compartment) / IP4X (cabinet)
Insulation Medium: SF6 / Vacuum / Dry Air / Solid Insulation

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KYN28-12 Metal-Clad Withdrawable Medium Voltage Switchgear
KYN28-12 Metal-Clad Withdrawable Medium Voltage Switchgear

Scope of ApplicationThe KYN28-12 metal-clad withdrawable switchgear is designed for three-phase AC power systems (50Hz or 60Hz, rated voltages of 3.6kV, 7.2kV, 10kV, 11kV, 12kV and 15kV), and is used for power distribution, control, and protection in power plants, substations, industrial plants, and critical infrastructure. It is especially suitable for frequent switching and high-reliability applications.

Rated Current: 630A, 1250A, 1600A, 2000A, 2500A, 3150A
Icw: 25kA/4s, 31.5kA/4s, 40kA/4s
Ipk: 63kA, 80kA, 100kA
IP Rating:IP4X P2X

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