Our mine medium & high voltage switchgear covers 7.2kV,12kV,24kV,35kV,40.5kV and customized 66kV versions. This metal-clad withdrawable vacuum switchgear serves as core power distribution & protection equipment for open-pit and underground mines. Rugged sand/dust resistant design, compatible with mine off-grid microgrid, mineral processing plant, mining EV charging station and remote mine camp power supply. IEC compliant, modular expandable, 35kV/66kV high voltage solutions available for large mining EPC projects.
Medium Voltage Switchgear
- 1. SF6-Free eco-friendly insulation, no potent greenhouse gas emission
- 2. 72.5kV (66kV class) compact gas insulated design, saving substation footprint
- 3. Fully sealed metal tank, dust & sand resistant for harsh mine environments
- 4. Low maintenance & high reliability for unattended remote mining microgrid stations
- 5. Modular structure, easy integration with mine renewable power & EPC projects
Medium Voltage Switchgear for Mine Site Substation
Our Mine Medium Voltage Switchgear is metal-clad withdrawable vacuum switchgear, designed specifically for power receiving, distribution, protection and control in harsh mining environments. It acts as the core power hub for mine substations, mine microgrids, mineral processing plants and electric mining fleets. The modular cubicle design supports easy expansion and integration with mine renewable microgrid, battery swap systems and mine camp power supply. Custom 35kV and 66kV high-voltage switchgear solutions are also available upon request for large-scale mining projects.
Technical Parameters
| Rated Voltage | 7.2kV /12kV /24kV /35kV /40.5kV / 66kV customized |
| Rated Frequency | 50/60 Hz |
| Rated Main Bus Current | 630A,1250A,1600A,2000A,2500A,3150A |
| Rated Short-time Withstand Current | 20kA,25kA,31.5kA,40kA (3s) |
| Arc Fault Containment | IAC AFLR classified, optional arc-proof design |
| Protection Enclosure | IP41 / IP54 optional (anti-dust, anti-sand) |
| Circuit Breaker Type | Vacuum circuit breaker |
| Mechanical Interlock | 5-prevention mandatory mechanical interlock |
| Operating Temperature | -25℃ ~ +60℃ |
| Altitude | ≤2000m, higher altitude customized |
| Standard Compliance | IEC 62271, ISO; mining customized certificates available |
| Structure | Metal-clad, modular compartment, withdrawable trolley; 35kV & 66kV adopt dedicated high-voltage modular design |
Application Scenarios
- Open-pit mine main substation and distribution station, including large mine 35kV / 66kV incoming substation
- Underground mine power distribution (non-explosive & explosive zone customized version)
- Off-grid mine microgrid, solar & wind hybrid power station
- Mineral processing plant, crushing & screening workshop power supply
- Electric mining truck charging & battery swap power supply room
- Remote mine camp central power distribution
Core Advantages
- Harsh Mining Environment Adaptation: Dust-proof, sand-proof, anti-condensation heater pre-installed. Works stably in desert, high-dust, large temperature fluctuation mine sites. 35kV & 66kV versions are optimized for heavy-load large mine power intake.
- High Safety Protection: Built-in five-prevention mechanical interlock; optional arc fault containment to protect operators against internal arc accidents.
- Modular & Expandable: Cubicle combination flexible, easy to add incoming, feeder, bus-coupler, metering panels during mine capacity expansion. 35kV / 66kV solutions support primary power intake for mega mining projects.
- Low Maintenance Design: Withdrawable vacuum breaker, no need to cut off whole busbar for breaker maintenance, reduce mine downtime loss.
- Seamless Microgrid Integration: Compatible with mine renewable microgrid, battery energy storage, EV charging system, supporting intelligent power management system.
- Customization Available: Voltage, protection relay, enclosure, local/remote monitoring can be tailored to match mine EPC project requirements, including 35kV and 66kV high voltage packages for large mines.
Product Features
- Independent compartment design: busbar compartment, breaker compartment, cable compartment, control compartment fully separated
- Intelligent protection relay: overcurrent, short circuit, earth fault, under/over voltage protection
- Local & remote monitoring, supporting SCADA and mine smart energy management system connection
- Hot-dip galvanized / aluzinc cabinet for anti-corrosion, resisting mine salt dust and moisture
- Optional outdoor containerized packaged substation solution for fast site deployment, also available for 35kV / 66kV mine main substation
FAQ
Q1: Can this MV switchgear be used for underground mining?
A: Yes. We provide general mining type and explosion-proof optional versions for underground mines. We will adjust enclosure rating and protection scheme according to gas and coal dust classification of your underground mine.
Q2: Can you supply 35kV or 66kV high voltage switchgear for large mine main power substation?
A: Yes, both 35kV and 66kV high-voltage modular switchgear are available. They are widely used as primary incoming power equipment for large open pit mines, supporting high-capacity power intake for mineral processing, EV mining truck charging and renewable microgrid integration.
Q3: Is it compatible with mine off-grid microgrid with solar and wind power?
A: Fully compatible. The switchgear can coordinate with wind & storage converter, solar inverter and BESS, serving as the main distribution hub for mine renewable microgrid. 35kV and 66kV versions support large-scale renewable power access for mega mine projects.
Q4: What lead time can you offer for mine substation switchgear including 35kV /66kV?
A: Standard MV configuration: 4–8 weeks. Custom 35kV and 66kV high voltage packages will be quoted separately, lead time subject to specification, certification and panel quantity.
Q5: What certificates can be supplied for mining projects?
A: IEC test reports as standard. We can also prepare documents for regional mining approval requirements, such as site inspection documents, factory FAT test reports.
Q6: Can you supply containerized skid-mounted mine substation including MV /35kV /66kV switchgear, transformer and protection?
A: Yes. We offer turnkey packaged container substation integrated with switchgear, isolation transformer, control cabinet and auxiliary systems for fast deployment on remote mine sites, covering medium voltage, 35kV and 66kV high voltage grades.
Get in touch
Have a project in mind ? Send us your ore assay report, mine location and target capacity. Our mining engineers will prepare a customized process design, equipment list and quotation within 48 hours.