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Substation
Bridge the gap between transmission and distribution with our high-reliability substation systems. Designed to seamlessly convert high-voltage power (up to 220kV) into stable medium or low-voltage electricity, our solutions integrate cutting-edge transformers, switchgear, and automation. We focus on maximizing land utilization and minimizing power outage losses, providing a cost-effective, long-life infrastructure that ensures the safe and continuous operation of your entire power grid.
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Advanced Substation Solutions: High-Efficiency Voltage Transformation & Power Management
Substations reduce the high voltage on the transmission side to medium or low voltage. Their main advantages include shortening substation lifespan while providing highly reliable power supply. This also reduces overall costs, improves land utilization, and minimizes power outage losses.
substation is a core facility in a power system used for voltage transformation, power distribution, system protection, and operation control. It uses transformers to reduce transmission voltage (such as 110 kV or 220 kV) to distribution voltage (such as 10 kV or 400 V) and integrates switchgear, relay protection, automation systems, etc., to achieve safe, reliable, and efficient power transmission and management.
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Why Choose TOONICE’s Substation?
Highly Reliable Power Supply
Power restoration <30s, SAIDI reduced by 50%–75%
Cost Reduction and Efficiency Improvement
70% cycle time reduction, annual savings of 150,000–800,000 RMB
Extremely Space-Saving
Locating only 10–50㎡, saving 70%+
Intrinsically Safe
Arc flash <5ms, accident reduction >90%
Green Energy Empowerment
Connection ≤20MW, energy savings of 500,000 kWh/year
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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