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Medium & High Voltage Switchgear
Medium and high voltage switchgear helps the main power station safely distribute electricity to various power consumption areas, featuring high reliability, long electrical life, and fire-free safety. Furthermore, this product can be flexibly used in various extreme environments. It can provide you with low-risk, high-usage, and safer electricity needs
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The Ultimate Medium and High Voltage Solution for Secure Electricity
Medium and low voltage switchgear is a complete set of electrical equipment used for power distribution, control, protection, and monitoring in power distribution systems. Its range is from 1KV to 40.5KV, and it is widely used in substations, factories, commercial buildings, data centers, and new energy power plants.
Indoor Metal-Clad Withdrawable Switchgear
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Why Choose TOONICE’s Medium & Low Voltage Switchgear?
High-Reliability Power Supply
Fault isolation ≤200ms, SAIDI reduced by 50%–75%
Intrinsically Safe Protection
Arc interruption <5ms, accident rate reduced by >90%
Intelligent Cost Reduction and Efficiency Improvement
Inspection frequency reduced by 40%–60%, annual savings of 150,000–500,000 RMB
Extreme Space Saving
Land area reduced by 50%–70%, single cabinet ≤36 circuits
Green and Low-Carbon Support
Energy efficiency improved by 5%–12%, annual electricity savings of hundreds of thousands of kWh
FAQs
Why is it called a “ring” main unit?
Because it’s used in a ring (loop) network, where power can flow from two directions. If one side fails, supply continues from the other side, better reliability.
What voltage levels do RMUs operate at?
Typically:
- 6 kV
- 11 kV
- 22 kV
- 33 kV
What is SF₆ in RMUs, and is it safe?
SF₆is a gas with excellent insulation properties
Safe when sealed, but it’s a greenhouse gas
Many manufacturers now offer SF₆-free RMUs due to environmental regulations
How often do RMUs require maintenance?
Gas-insulated RMUs: Very low (often 10–20 years)
Solid insulated RMUs: Minimal
Routine inspections still recommended per utility standards
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