3KV 6KV 10KV Medium Voltage Switchgear - ZISHENG - Professional Oil Immersed Transformer Manufacturer

3KV 6KV 10KV Medium Voltage Switchgear

Switchgear Series

3KV 6KV 10KV Medium Voltage Switchgear

3KV 6KV 10KV Medium Voltage Switchgear is designed for medium-voltage power distribution, protection, control, and isolation in industrial plants, substations, mining facilities, power generation, renewable energy projects, and infrastructure applications. The switchgear can be customized for 3kV, 6kV, and 10kV AC systems, with configurations including incoming feeders, outgoing feeders, bus couplers, circuit breakers, protection relays, metering, and grounding systems. Fixed or withdrawable vacuum circuit breaker solutions are available according to project requirements. The equipment is suitable for indoor medium-voltage distribution systems and can be engineered according to applicable IEC standards and customer specifications. Its modular compartment design provides reliable electrical isolation, convenient operation, and easier maintenance.

Key Features:

  • Mechanical & Electrical Interlocking
  • Customized Cabinet Dimensions
  • Flexible Busbar Configuration
  • Overcurrent & Earth-Fault Protection
  • Integrated Metering and Monitoring

3KV 6KV 10KV Medium Voltage Switchgear is designed for reliable power distribution, protection, control, and isolation in medium-voltage electrical systems. Available for 3kV, 6kV, and 10kV AC networks, the switchgear can be customized according to project requirements, including rated current, short-circuit capacity, feeder configuration, protection functions, and control systems.

Featuring a compartmentalized metal-enclosed structure and vacuum circuit breaker technology, it provides reliable operation, convenient maintenance, and enhanced operational safety. Fixed and withdrawable configurations are available for applications in industrial plants, substations, mining, power generation, renewable energy, water treatment, and infrastructure projects.

The switchgear can be engineered to meet applicable IEC 62271 requirements and supplied with customized protection relays, metering, monitoring, communication, and remote control functions for EPC and international power distribution projects.

About ZISHENG ELECTRICAL

Zisheng are a professional 19+ years manufacturer in producing Oil-Immersed Transformers, Compact Substation, Pad Mounted Transformers, Pole Mounted Transformers and Dry Type Transformers. We own the certificates of ISO/CE/IEC 60076 and TUV Rheinland.
Transformers undergo rigorous FAT and type testing, support voltage/capacity customization. Welcome to consult for Catalog and Product. you can contact us at email [email protected].

Our 3KV 6KV 10KV Medium Voltage Switchgear can be customized for industrial power distribution, substations, mining, power generation, and infrastructure projects. Typical configurations include incoming panels, outgoing feeder panels, bus couplers, metering panels, protection relays, and vacuum circuit breakers. Medium-voltage switchgear in this voltage range is commonly used for industrial and utility distribution applications.

10kV Industrial Power Distribution Project

Application: Industrial Plant
System Voltage: 10kV
Configuration: Incoming Panel + Metering Panel + Bus Section + Outgoing Feeder Panels
Main Equipment: Vacuum Circuit Breaker, CT, VT, Numerical Protection Relay and Surge Protection

The switchgear provides centralized power distribution and protection for transformers, motors, and production loads. The configuration can be designed according to the project’s Single Line Diagram and short-circuit requirements.


6kV Mining Project

Application: Mining and Mineral Processing
System Voltage: 6kV
Configuration: Multiple VCB Feeder Panels
Typical Loads: Large Motors, Pumps, Crushers and Conveyors

A customized 6kV switchgear system can provide reliable power distribution and feeder protection for continuous industrial operation. Similar 6kV switchgear projects are used for mining plants and large motor-driven equipment.


10kV Substation Project

Application: Utility / Industrial Substation
System Voltage: 10kV
Configuration: Incoming Feeder + Bus Coupler + Transformer Outgoing Feeders
Features: Mechanical Interlocking, Protection Relays, Metering and Remote Monitoring

The switchgear controls and protects the medium-voltage distribution network while supplying downstream transformers and electrical loads.


6kV Oil & Gas Project

Application: Industrial Substation
System Voltage: 6kV
Configuration: Withdrawable VCB Switchgear
Features: Digital Protection, Metering Transformers, Earthing System and Control Circuits

Medium-voltage switchgear is also used to modernize industrial substations and provide reliable power to critical 6kV consumers.


Typical Project Configuration

Medium-Voltage Incoming Supply
↓
3kV / 6kV / 10kV Incoming Switchgear
↓
Main Busbar
↓
Bus Coupler / Bus Section
↓
Outgoing Feeder Panels
↓
Transformer / Motor / Industrial Load

Customized Project Support

  • Single Line Diagram Review
  • Technical Solution Design
  • Switchgear Configuration
  • Protection & Metering Design
  • GA and Wiring Drawings
  • Factory Assembly
  • Routine Testing
  • FAT Inspection
  • Export Packing & Global Delivery

Note: The final project configuration can be customized according to the rated voltage, rated current, short-circuit level, feeder quantity, protection requirements, installation environment, and applicable standards.

The 3KV 6KV 10KV Medium Voltage Switchgear is engineered for medium-voltage power distribution, protection, switching, and isolation. The equipment can be customized according to the project Single Line Diagram (SLD), load requirements, short-circuit level, installation conditions, and applicable standards.

Item Specification
Product Type Medium Voltage Switchgear
Rated Voltage 3kV / 6kV / 10kV
System Voltage 3.3kV / 6.6kV / 10kV / 10.5kV
Rated Frequency 50Hz / 60Hz
Number of Phases 3 Phase
Rated Current 630A / 1250A / 1600A / 2000A / 2500A / 3150A
Short-Time Withstand Current 20kA / 25kA / 31.5kA / 40kA or Customized
Peak Withstand Current According to short-circuit rating
Circuit Breaker Vacuum Circuit Breaker (VCB)
Breaker Type Fixed / Withdrawable
Operating Mechanism Spring Energy Storage
Busbar Configuration Single Busbar / Sectionalized / Double Busbar
Busbar Material Copper
Protection Relay Numerical Protection Relay
Protection Functions Overcurrent / Short Circuit / Earth Fault / Undervoltage / Overvoltage
Current Transformer Metering / Protection / Zero-Sequence CT
Voltage Transformer VT/PT, Optional
Surge Arrester Metal-Oxide Type, Optional
Earthing Switch Manual / Motorized, Optional
Interlocking Mechanical & Electrical
Metering Ammeter / Voltmeter / Multifunction Power Meter
Communication RS485 / Modbus / Ethernet, Optional
Remote Monitoring Optional
Control Mode Local / Remote / Automatic
Installation Indoor
Enclosure Metal-Enclosed / Metal-Clad
Internal Separation Compartmentalized
Protection Degree Typically IP4X or Customized
Cable Entry Top / Bottom
Cooling Natural Air Cooling
Color RAL Color, Customized
Applicable Standard IEC 62271 Series
Testing Routine Test / FAT
Application Industrial / Utility / Mining / Energy / Infrastructure
Customization Available

Key Configuration Options

Voltage: 3kV, 6kV, 10kV
Breaker: Fixed or Withdrawable VCB
Busbar: Single, sectionalized, or double busbar
Protection: Overcurrent, short-circuit, earth fault, voltage protection, motor/transformer protection
Monitoring: Current, voltage, power, energy, temperature, breaker status
Communication: RS485, Modbus, Ethernet, SCADA integration
Environment: High-altitude, high-humidity, dusty, corrosive, and other special conditions can be considered.

The final technical parameters should be confirmed based on the project SLD, load list, short-circuit calculation, protection coordination requirements, utility specifications, and destination-market standards.

The 3KV 6KV 10KV Medium Voltage Switchgear is designed for medium-voltage power distribution, protection, switching, and isolation. It can be customized for different load types, system configurations, environmental conditions, and project requirements.

1. Industrial Power Distribution

Used for centralized power distribution and protection in manufacturing plants, factories, and industrial facilities.

Typical loads:
Motors, pumps, compressors, production lines, HVAC systems, and auxiliary equipment.

2. Mining & Mineral Processing

Suitable for reliable power supply to heavy-duty mining and processing equipment.

Typical applications:

  • Crushers
  • Conveyors
  • Grinding equipment
  • Ventilation systems
  • Dewatering pumps
  • Mineral processing equipment

3. Power Generation Plants

Used in generator plants and power stations for medium-voltage distribution and auxiliary power systems.

Applications include:

  • Diesel power plants
  • Gas power plants
  • Hydropower plants
  • Solar power plants
  • Wind power facilities

4. Utility Substations

Used as incoming, outgoing, transformer, metering, and bus-coupler panels in medium-voltage substations.

The switchgear can integrate VCBs, CTs, VTs, protection relays, metering, and communication systems.

5. Oil & Gas Facilities

Suitable for medium-voltage distribution in oil and gas processing and industrial facilities.

Typical loads: pumps, compressors, motors, fans, and process equipment.

Special enclosure, corrosion protection, and component requirements can be customized according to the project environment.

6. Cement & Heavy Industries

Designed for high-power industrial equipment requiring reliable medium-voltage distribution.

Typical applications:

  • Cement mills
  • Crushers
  • Large motors
  • Conveyors
  • Industrial fans
  • Compressors
  • Processing machinery

7. Solar PV & Renewable Energy

Can be used in renewable energy projects for medium-voltage collection and distribution.

Applications include:

  • Solar PV plants
  • Wind farms
  • BESS projects
  • Hybrid power systems
  • Renewable energy substations

8. Water & Wastewater Treatment

Used to supply and protect medium-voltage motors and electrical equipment.

Typical loads:

  • Water pumps
  • Sewage pumps
  • Blowers
  • Treatment equipment
  • Large motors

9. Infrastructure Projects

Suitable for medium-voltage distribution in:

  • Airports
  • Railway systems
  • Metro projects
  • Ports
  • Tunnels
  • Public utilities
  • Transportation facilities

10. Commercial & Large Buildings

Can be used in large commercial and public facilities requiring medium-voltage power distribution.

Typical applications:

  • Shopping malls
  • Hotels
  • Hospitals
  • Office complexes
  • Convention centers
  • Large commercial buildings

11. Data Centers

Used for medium-voltage incoming power, transformer feeders, and critical power distribution systems.

The configuration can include dual incoming feeders, bus couplers, protection relays, metering, remote monitoring, and automatic transfer functions where required.

12. Microgrid & Energy Storage Systems

The switchgear can be integrated into modern energy systems combining:

Grid + Transformer + Solar PV + BESS + Generator

It provides medium-voltage switching, protection, isolation, and power distribution for the overall system.

Typical Application Structure

Utility / Generator
↓
3kV / 6kV / 10kV Medium Voltage Switchgear
↓
Main Busbar
↓
Incoming / Bus Coupler / Outgoing Feeders
↓
Transformer / Motor / Industrial Loads

The final configuration is customized according to the Single Line Diagram (SLD), load list, rated current, short-circuit level, protection requirements, installation environment, and applicable standards.

It is a medium-voltage electrical assembly used for power distribution, switching, protection, isolation, and monitoring in 3kV, 6kV, and 10kV AC systems. It typically integrates vacuum circuit breakers, busbars, CTs, protection relays, metering devices, and earthing systems.

The switchgear can be configured for:

  • 3kV
  • 3.3kV
  • 6kV
  • 6.6kV
  • 10kV
  • 10.5kV

Other voltage requirements can be evaluated according to the project specification.

Both fixed and withdrawable vacuum circuit breaker configurations are available.

Withdrawable switchgear is commonly selected for industrial and EPC projects because the breaker can be isolated and removed more conveniently for inspection and maintenance.

The standard solution uses a Vacuum Circuit Breaker (VCB). The breaker rating, breaking capacity, control voltage, operating mechanism, and auxiliary contacts can be customized according to the electrical system.

Common configurations include:

630A, 1250A, 1600A, 2000A, 2500A, and 3150A.

The final rating is selected according to the connected load and system design.

The switchgear can be configured with:

  • Single busbar
  • Sectionalized busbar
  • Double busbar

A bus coupler can also be added when required for operational flexibility or power supply redundancy.

Depending on the application, protection functions may include:

  • Overcurrent protection
  • Short-circuit protection
  • Earth-fault protection
  • Overvoltage protection
  • Undervoltage protection
  • Phase-failure protection
  • Motor protection
  • Transformer feeder protection

Numerical protection relays can be configured according to the project’s protection coordination requirements.

Yes. Current Transformers (CTs) and Voltage Transformers (VTs/PTs) can be selected according to metering and protection requirements.

Parameters such as ratio, accuracy class, number of cores, and protection/metering functions can be customized.

Yes. An earthing switch can be integrated into the switchgear and equipped with mechanical and/or electrical interlocking to help prevent incorrect operating sequences.

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