China recloser,transformer,switchgear,EV charger,Digital power station Manufacturer

Rockwill 69 kV Dead Tank Circuit Breakers have been integral to smart substation upgrades, achieving near-perfect power supply reliability.

Publish time: 2026-03-03 16:23:46
Project Overview
Deployed in a 110kV smart substation upgrade at a coastal industrial park in Guangdong Province, our RMR-72.5kV vacuum circuit breaker has delivered 24 months of zero-failure operation under high-salinity, high-humidity conditions and frequent switching demands. Power supply reliability reached 99.99%, providing robust support for the park’s green manufacturing and digital transformation initiatives.
RMR-72.5kV Dead Tank Vacuum Circuit Breaker: Superior Fault Breaking, Zero Maintenance
Engineered for Excellence & Durability
Each breaking unit integrates a vacuum interrupter with exceptional insulation recovery performance, ensuring superior interruption of short-circuit and short-line faults. The fully self-powered arc-quenching structure effectively handles multiple lightning strikes and evolving fault currents. Maintenance-free vacuum interrupters eliminate periodic inspections, cutting maintenance man-hours by 70% and significantly optimizing life-cycle costs—perfectly meeting industrial users’ dual demands for high reliability and operational economy.
Driving Infrastructure Forward
As a benchmark in medium-voltage green intelligent equipment, the RMR-72.5kV is widely deployed across coastal industrial zones, data centers, and PV/wind power plants. Its “zero maintenance, high breaking capacity, strong adaptability” profile accelerates low-carbon upgrades of distribution networks. We continue advancing vacuum technology and smart O&M integration to deliver safe, efficient, and sustainable Chinese solutions for global energy transition.

Related Articles

...
Rockwill 2500kVA Step up Transformer Success in Namibia
Rockwill 2500kVA Step up Transformer Success in Namibia
Rockwill 2500kVA transformers support Namibia 20MW PV plant with high-altitude insulation and C5-M anti-corrosion, reducing maintenance costs by 35%.
Successful Case of 263 Units of 33kV Oil-immersed 32-step Voltage Regulator Controller Project in Bangladesh
Successful Case of 263 Units of 33kV Oil-immersed 32-step Voltage Regulator Controller Project in Bangladesh
Rockwill delivered 263 units of 33kV 32-step voltage regulators in Bangladesh. Proven reliability for grid stability. View our technical success story.
Rockwill RGIS Case Study and Gas Insulated Switchgear Project in Ghana
Rockwill RGIS Case Study and Gas Insulated Switchgear Project in Ghana
Read the Rockwill RGIS project success in Ghana providing reliable gas insulated switchgear solutions for enhanced power distribution and grid performance across the region.
Successful Case of 170 Sets of 11kV Automatic Recloser Project in Kenya
Successful Case of 170 Sets of 11kV Automatic Recloser Project in Kenya
170 sets of 11kV automatic recloser project success in Kenya, demonstrating reliable grid automation and enhanced power distribution performance.
Rockwill Ukraine 186 Units 12kV Outdoor Vacuum Recloser Project Success Case
Rockwill Ukraine 186 Units 12kV Outdoor Vacuum Recloser Project Success Case
Rockwill successfully delivered 186 units of 12kV outdoor vacuum reclosers for Ukraine’s distribution network, solving issues like thunderstorms and large temperature differences with intelligent reclosing technology.
Rockwill 400 Units Prefabricated Substation Case Study in Niger
Rockwill 400 Units Prefabricated Substation Case Study in Niger
Rockwill delivered 20kV prefabricated substations to Niger NIGELEC, IEC 62271-202, IP54, French-labeled for Sahel electrification.
Case Study of Rockwill 72.5kV Dead Tank Circuit Breaker Project in South Africa
Case Study of Rockwill 72.5kV Dead Tank Circuit Breaker Project in South Africa
Rockwill 72.5kV Dead Tank Circuit Breaker success case in South Africa providing low maintenance 4000A HV switchgear solutions with built in CTs and 450kV BIL insulation for South African Eskom and mining power networks
Rockwill Intelligent Voltage Regulator Empowers Power Quality Improvement in an Industrial Park in Southeast Asia
Rockwill Intelligent Voltage Regulator Empowers Power Quality Improvement in an Industrial Park in Southeast Asia
Rockwill Intelligent Voltage Regulator empowers power quality improvement in Southeast Asia industrial park with ±0.5% accuracy, ≤1s response & IP54 protection for stable industrial operation.
WhatsApp E-mail Message