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Solar Power Control System / Hybrid
Solar Power Control System / Hybrid (SPCS / H) cabinets are designed to supply three phase induction motors in solar pumping systems. These cabinets have a hybrid power input. They could be supplied simultaneously from a 3-phase AC power grid and from a PV array (Figure 1).
Example diagram of SPCS / H pump installation:
Figure 1 – Example diagram of a typical SPCS / H application
The SPCS / H cabinet works in a proportional mode, when it is supplied from both, an AC grid and PV panels, the device consumes the maximum possible energy from the PV array and, if the solar energy is not enough to feed the pump (with its rated power), then it consumes the rest necessary energy from the AC power grid.
The SPCS / H cabinet could be supplied also only from one power source. For example, only from a PV array. The AC power grid could be switched on from the AC power switch (on the front panel of the cabinet), only when the customer needs it.
The SPCS / H cabinet includes Inverter module, HPSI module, AC grid and PV side arresters, PV fuse holders, AC and DC Switches, Control Switch. Optional there could be included communication modules and water level control module.