Hai Nam Switchboard Manufacture Co., Ltd
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Medium Voltage Switchgear

Hainam offers Medium voltage switchgear for primary and secondary distribution developed from customer requirements.
Our products include Air insulated metal-clad and metal-enclosed panels with vacuum circuit breakers (VCB) and load break switches (LBS).
The voltage ranges are 3.6kV - 7.2kV – 15kV – 24kV and current ratings up to 1250A.
The switching devices are of fixed or withdrawable type.
The switchgear is designed for modular concept.
The switchgear is designed flexibly, it can be installed the switching devices of almost brands.
The switchgear design takes three categories of user requirements:
  • The reliability necessary for continuity of power supply.
  • Simple installation, operation and maintenance.
  • Safety of personnel.
1. Rating
  • Rated voltage (kV): 3.6 - 7.2 - 15 - 24
  • Rated busbar current (A): 630 – 1250
  • Rated feeder current (A): 630 - 1250
  • Rated short-time withstand current (kA): 25 / 20 / 16 / 12.5
  • Rated short-time current 1s (kA): 25 / 20 / 16 / 12.5
  • Making capacity (kA): 62.5 / 50 / 40 / 31.5
2. Application
  • The switchgear has a wide range of application in distribution plants.
  • Power generation stations, Transformer stations, Switching stations.
  • Manufacturing industry.
  • Airport, Port.
  • Supermarket, Shopping center, Stadium.
  • Hospital.
  • Building.
3. Standards
  • The switchgear is tested in accordance with IEC 62271-200 and 60694 relating to the manufacture of medium voltage switchgear and controlgear assemblies.
4. Protection Index
  • IP3X for the enclosure in accordance with IEC 60529.
  • IP2X between each compartment.
5. Construction
  • Internal arc withstand.
  • All the metal surfaces in the panels are corrosion proof.
  • Panels are produced using electro zinc coated steel sheet in accordance to ISO 5002.
  • Paint: epoxy powder polymerized at high temperature.
  • Standard colour: light grey (RAL 7032).
6. Dimensions of cubicle
For 15kV -24kV panels:
  • Metal-enclosed switchgear with all cubicles contain Load Break Switches: 800W-2000H-1200D (the measuring cubicle has the width of 1200).
  • Metal-clad switchgear with all cubicles contains Vacuum Circuit Breakers: 1000W-2300H-1800D.
  • Metal-enclosed switchgear comprises LBS and VCB: 1000W-2300H-1800D.
For 7.2kV panels:
  • Metal-clad switchgear with all cubicles contains 2 rows of Vacuum Circuit Breakers: 800W-2300H-1800D.
  • Metal-clad switchgear cubicle contains only one Vacuum circuit breaker: 800W-1800H-1500D.
7. Protection
For 15kV -24kV panels:
  • The switchgear is protected by Digital protection relays of Schneider or some different brands, sometimes installed electro-magnetic protection relays as customer request.