A box-type substation (箱式变电站 / box substation) integrates transformer, HV/LV switchgear and controls in one factory-built cabin. The transformer chamber runs hot, and in a sealed enclosure that heat must be managed actively: this is where a box substation air conditioner comes in.
Where the heat comes from
- Transformer losses: oil-immersed or dry-type transformers dissipate continuous heat under load.
- LV chamber: switchgear and capacitors add localized heat.
- Sealed, outdoor: coastal, rainy and dusty sites need higher protection (IP54+) with anti-corrosion.
Cooling the substation enclosure
An HCK cabinet air conditioner mounted on the transformer or LV chamber provides sealed cooling (3000-7500 W, IP54+, R410A, rotary compressor) so internal temperature stays in range. RS485/Modbus reports temperature and alarms to the substation controller, and the unit is validated for -40C to 55C duty.
Delivery and customization
HCK pairs the AC with S11/S13/SHB15 oil-immersed and SCB10/SCB11 dry-type transformers, and customizes voltage level, protection and enclosure per project. OEM/ODM with 1-unit MOQ and a proposal within 48 hours.