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Brush - Lightning DC Switchgear
The BRUSH Switchgear Lightning product, incorporating the high-speed NDC Circuit Breaker, utilises award winning magnetic actuator technology and provides an innovative DC switchgear solution for a variety of markets and demanding applications. Combining innovation with 50 years of DC circuit breaker design and manufacturing experience, the Lightening offers optimal safety, reliability and high speed performance – the ideal solution to your DC requirements.
- Asset Life Extension
- Custom Solutions
- Lower Total Cost of Ownership (TCO)
- Proven Design
ENGINEERING FOCUS
NDC circuit breaker at the heart of Lightning DC
The patented arc transfer system prevents internal contamination of the circuit breaker compartment and cubicle.
The cold cathode arc chute assembly dissipates all arcs whilst the transfer coil provides additional magnetic flux across the contact gap, assisting with the interruption of low currents that would otherwise lead to long arcing times.
The magnetic actuator is based on a solenoid plunger, and provides the motion required to close the main contacts and to reset the latch device on tripping.
- Property : Rating
- Nominal Voltage : 750-1500V dc
- Rated Voltage : 900-1800V dc
- Rated Service Current : 4000/6000/8000A
- Power-Frequency Withstand Level : 9 kV (ac)
- Rated Short-Time Withstand Current : 100kAp / 71kA 250ms
- Rated Track Time-Constant : 100ms
- Rated Short-Circuit Current : 180kAP/125kA – 142kAP/100kA
- Bi-directional Critical Current : 25-26A
- Mechanical Endurance : 50,000 operations
- Breaking Characteristic : High Speed
- Rated Impulse Withstand : 20kVp
- Insulation Category : OV4
- Auxiliary Operating Supply : 50V dc (other options available)