Reactive compensation equipment

The invention discloses reactive compensation equipment which comprises a power switch, a current detection loop, a secondary loop fuse, automatic compensation units, a manual compensation unit and alightening arrester, the front end of the power switch is electrically connected with a power supply of a power supply system, the rear end of the power switch is electrically connected with the secondary loop fuse, the automatic compensation units, the manual compensation unit and the lightning arrester, and the automatic compensation units, the manual compensation unit and the lightning arresterare connected to the rear end of the power switch in parallel. The manual compensation unit is added, and is not controlled by an automatic reactive power compensation controller, it is not requiredto install an AC contactor or an electrothermal relay, instead, a mini breaker can be used directly to control use or removal of a three-phase power capacitor, and a power transformer of the power supply system can obtain optim