| Brand | ROCKWILL |
| Model NO. | Original Manufacturer Dead tank Vacuum Circuit Breaker-145kV to 230kV |
| Rated voltage | customization |
| Rated normal current | 4000A |
| Rated frequency | 50/60Hz |
| Rated short circuit breaking current | 40kA |
| Series | RHDZ |
The RHD Series Dead tank Vacuum Circuit Breaker redefines high-voltage power control with 'tailor-made customization' and cutting-edge vacuum technology. It features a sealed vacuum interrupter (vacuum degree ≤10⁻⁴Pa) that delivers lightning-fast arc extinction (<10ms) --no SF6, no pollution, just eco-friendly, efficient current interruption. Covering standard 40.5kV-252kV grades and supporting full non-standard voltage/current customization, it perfectly fits your grid upgrade, new construction, or special industrial needs, standing as the trusted choice for high-demand high-voltage scenarios.
We offer all-round customization to match your exact requirements: single-phase/two-phase/three-phase configurations, plus non-standard voltage (12kV-252kV) and current (1250A-6300A) solutions. Examples include 1250A 75kV, 3200A 46kV, 60kV, 69kV, and 75kV -- whatever your grid specs, we craft a seamless-fit breaker.
Every unit is fully assembled and rigorously tested at our factory before direct delivery. No on-site disassembly or high-voltage testing needed -- saving you valuable time and costs.
|
Item |
Unit |
Parameters |
|
customization of Rated Voltage |
kV |
11kV to 252kV |
|
customization of Rated current |
A |
1250 to 6300 |
|
Rated frequency |
Hz |
50/60 |
|
1min Power frequency withstand voltage |
kV |
Max to 460 |
|
Lightning impulse withstand voltage |
kV |
Max to 1050 |
|
First open pole factor |
|
1.5/1.3/1.55 |
|
Rated short circuit breaking current |
kA |
16 to 63 |
|
Rated short - circuit duration |
s |
4,3 |
|
Rated out - of - phase breaking current |
|
10 |
|
Rated cable charging current |
|
10/50/125 |
|
Rated peak value withstand current |
kA |
80/100/125 |
|
Rated making current (peak) |
kA |
80/100/125 |
|
Creepage distance |
mm/kV |
25 - 31 |
|
Heater voltage |
|
AC220/DC220 |
|
Voltage of control circuit |
DC |
DC110/DC220/DC230 |
|
Voltage of energy - store motor |
V |
DC 220/DC 110/AC 220/DC230 |
|
Applied standards |
|
GB/T 1984/IEC 62271 - 100 |
The RHD series features a specialized low-center-of-gravity design that provides 9-grade seismic resistance. This ensures the Dead Tank Vacuum Circuit Breaker remains structurally sound and maintains rock-solid performance even during high-intensity earthquake events, making it a proven choice for high-risk geographical areas.
Q:How does the Dead Tank Vacuum Circuit Breaker achieve zero-pollution operation?
A:Unlike traditional high-voltage equipment, this Dead Tank Vacuum Circuit Breaker uses high-vacuum technology (degree 10⁻⁴Pa) for arc extinction instead of SF6 gas. By eliminating greenhouse gases, it removes the risk of toxic leaks and aligns with global green energy trends and strict environmental standards.
Q:Can this Dead Tank Vacuum Circuit Breaker be customized for non-standard power grids?
A:Yes, we offer "all-round customization" for the Dead Tank Vacuum Circuit Breaker. While it covers standard 40.5kV to 252kV grades, we can craft seamless-fit solutions for non-standard voltages (such as 46kV, 69kV, or 75kV) and current ratings from 1250A up to 6300A in single, two, or three-phase configurations.
Q:What are the maintenance benefits of using a Dead Tank Vacuum Circuit Breaker ?
A:The RHD series is designed to be virtually maintenance-free. It utilizes an oil-free and gas-free spring-operated mechanism and a vacuum interrupter rated for over 10,000 cycles. Additionally, every Dead Tank Vacuum Circuit Breaker is fully assembled and tested at the factory, so no on-site disassembly or high-voltage testing is required during installation.
