High-Voltage DC Relays for New Energy | China Suppliers & Factory with Superior Insulation and Arc Resistance
Product Applications
In HVDC transmission systems, HVDC relays are used to control converter valves, circuit breakers and other equipment.
In the field of new energy such as solar power generation and wind power generation, HVDC relays are used to control inverters and energy storage systems.
In some special equipment that requires high voltage control, high voltage DC relays are also used.
High voltage DC relay features
Because the control voltage is very high, the coil turns are very many, the resistance is very large, so the working current is very small.
HVDC relays can control very high-power loads, and the contact capacity is generally more than 50A.
HVDC relays are very large and require special installation space and heat dissipation measures.
The production process of HVDC relays is very complex and the price is very expensive.
Selection of HVDC relay
Select a relay that matches the voltage of the control circuit.
Select the appropriate coil resistance according to the drive capability of the control circuit.
Select the appropriate contact capacity according to the current and voltage of the load.
Select the appropriate relay installation mode according to the installation space, such as cabinet installation and bracket installation.
Product displays
Frequently Asked Questions
What are the primary applications of HVDC relays?
HVDC relays are primarily used in HVDC transmission systems to control converter valves and circuit breakers, in new energy systems (solar and wind) to control inverters and energy storage, and in other special equipment requiring high voltage control.
Why do high voltage DC relays have large coil resistance?
Because the control voltage is very high, the coil requires a large number of turns. This results in high resistance, keeping the working current very small.
What is the typical contact capacity of an HVDC relay?
HVDC relays are designed to handle high-power loads, with contact capacities generally exceeding 50A.
How should I choose the right HVDC relay for my system?
Selection should be based on the matching control voltage, the coil resistance matching the drive capability, the contact capacity suitable for the load current/voltage, and the installation mode relative to the available space.
What installation options are available for HVDC relays?
Depending on the installation space and design requirements, HVDC relays can be installed using cabinet installation or bracket installation modes.
Why are HVDC relays relatively expensive and large in size?
Their production process is highly complex, making them expensive. Additionally, their large volume is necessary to handle high-power loads, requiring dedicated installation space and heat dissipation measures.
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