Customization 145kV/138kV/230kV or Other Dead tank Vacuum Circuit-Breaker
Key attributes
| Brand | ROCKWILL |
| Model NO. | Customization 145kV/138kV/230kV or Other Dead tank Vacuum Circuit-Breaker |
| Rated voltage | customization |
| Rated normal current | 4000A |
| Rated frequency | 50/60Hz |
| Rated short circuit breaking current | 40kA |
| Series | RHDZ |
Product descriptions from the supplier
Product Overview
The RHD Series 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.
About Customization
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.
Features
9-Grade Seismic Resistance：Low-center-of-gravity design withstands up to 9-degree earthquake intensity, ensuring rock-solid performance in seismic-prone areas -- a proven advantage of the RHD series.
Ultra-Efficient Arc Extinction & Long Lifespan：Vacuum medium's superior arc-extinguishing capability enables ≥50kA rated short-circuit breaking current. Boasting over 10,000 electrical operations and 10,000 mechanical cycles, it slashes replacement and maintenance costs.
Zero-Pollution Eco-Friendly Design：No SF6 or greenhouse gases -- eliminates leakage risks and environmental impact, aligning with global green energy trends and strict eco-standards.
Modular Flexibility for Any Layout：On-demand built-in current transformers (up to 15 for measurement/protection) and standardized module interfaces enable flexible combinations. Ideal for space-constrained substations and diverse design needs.
Extreme Environmental Adaptability：Thrives in harsh conditions: -40℃ to +55℃ ambient temperature, 32K daily temperature difference, 3,000m altitude, Class IV air pollution. Resists 700Pa wind pressure (34m/s) and 20mm icing -- reliable anywhere.
Comprehensive Safety Protection：Anti-mis operation interlocking devices prevent human-error accidents. Pre-delivery lightning impulse tests eliminate insulation discharge risks, ensuring uncompromised quality.
Maintenance-Free Spring Mechanism：Oil-free, gas-free spring-operated structure delivers stable performance, low noise, and high reliability -- cutting long-term operational workload to zero.
Technology Parameters
Item |
Unit |
Parameters |
customization of Rated Voltage |
kV |
11kV/12kV/13.8kV/15kV/22kV/33kV/44kV/60kV/63kV/66kV/ 69kV/88kV/115kV/123kV/125kV/126kV/132kV/138kV/145kV/ 150kV/170kV/184kV/204kV/220kV/225kV/230kV/245kV/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 |
Application Scenarios
Large Hub Substations:Perfect for 220kV+ key hub substations, its customized voltage adaptability seamlessly integrates into existing/upgraded grids, safeguarding main power circuits with unbeatable stability.
New Energy Grid-Connection Systems:Ideal for wind/solar power base high-voltage connections. Custom specs and eco-friendly design ensure renewable energy smoothly feeds into the main grid -- even for projects with unique voltage demands.
Industrial High-Voltage Power Systems:Tailored for metallurgy, chemicals, and other heavy industries with specialized voltage needs. Robust performance and frequent-operation adaptability guarantee uninterrupted power for high-power equipment.
Finished Products Display
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