| Brand | ROCKWILL |
| Model NO. | DCBLA Series Lightning Arrester for DC Circuit Breakers |
| Rated voltage | 500KV |
| Series | DCBLA Series |
The ±500kV lightning arrester for DC circuit breakers, used to limit the breaking overvoltage in DC systems and absorb the energy stored in inductive components during system short circuits.
It can effectively limit the amplitude of overvoltage and restrict the amplitude of overvoltage to a safe level through its internal nonlinear resistance elements, protecting subsequent equipment from high voltage damage.
It has a longer overvoltage tolerance time, maintaining its protective performance under continuous overvoltage conditions, effectively limiting the overvoltage amplitude.
It can withstand large current impacts and energy releases in a short time, ensuring the stability and safety of the system.
It has stable and reliable performance, maintaining its protective performance under multiple energy impacts.
| Project |
Value |
| rated voltage（DC） |
500kV |
| Structure |
50-pin Resistor in Parallel |
| Energy Absorption Capability（MJ） |
≥150 |
| Residual Voltage Protection Value（kV） |
≤800 |
| Reference Voltage Value（kV） |
≥610 |
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