High-Voltage DC Relays from China Factory - Reliable Suppliers for Over 110V Insulation and Arc Resistance
Product Applications
HVDC transmission
In HVDC transmission systems, HVDC relays are used to control converter valves, circuit breakers and other equipment.
New energy power generation
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.
Special equipment
In some special equipment that requires high voltage control, high voltage DC relays are also used.
High voltage DC relay features
Coil resistance is large
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.
Large contact capacity
HVDC relays can control very high-power loads, and the contact capacity is generally more than 50A.
Large volume
HVDC relays are very large and require special installation space and heat dissipation measures.
Expensive
The production process of HVDC relays is very complex and the price is very expensive.
Selection of HVDC relay
Control voltage
Select a relay that matches the voltage of the control circuit.
Coil resistance
Select the appropriate coil resistance according to the drive capability of the control circuit.
Contact capacity
Select the appropriate contact capacity according to the current and voltage of the load.
Installation mode
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 power systems (solar and wind power) to control inverters and energy storage, and in other special equipment requiring high-voltage control.
Why do high voltage DC relays have high coil resistance?
Because the control voltage is very high, the coil requires a large number of turns. This results in a very high resistance, which successfully keeps the working current low.
What is the typical contact capacity of an HVDC relay?
HVDC relays are built to manage high-power loads, and their contact capacity is generally rated at more than 50A.
Do HVDC relays require special installation space?
Yes. Due to their large physical volume, HVDC relays require dedicated installation space and specific heat dissipation measures to ensure safe operation.
What factors should be considered when selecting an HVDC relay?
Key selection criteria include matching the control voltage, choosing the appropriate coil resistance based on the drive capability, selecting the correct contact capacity according to the load current/voltage, and deciding on an installation mode (such as cabinet or bracket installation) that fits your physical space.
What to know about this product?
SEND A MESSAGE
Something isn't Clear?
Feel free to contact me, and l will be morethan happy to answer all of your questions.