High Capacity Power Relays For Solar Applications
As solar farms and energy storage systems grow in scale, they increasingly require power Relays that can safely cut off high DC voltages. That’s where Panasonic's new HE-V Relay comes in. Designed specifically for alternative energy applications, this new 2 Form A power Relay provides oustanding capacity, reduced energy requirements, and can be used for a variety of appliactions.
A nominal voltage of 800 VDC and maximum switching capacity of 1000 VDC, 20 A has been achieved at each of the HE-V Relay’s 1 Form A contacts. These contacts are connected in series to allow the simultaneous cutoff of DC positive and negative terminals.
Reduced Energy Requirements
HE-V Relays contribute to energy saving in devices, thanks to a coil hold voltage that is just 33% of the nominal coil voltage. Nominal operating power is also low at 210mW.
The HE-V Relay can be used in a variety of DC power applications, including photovoltaic power generation, energy storage, inverter control, and DC load control.
- In solar applications, one or more HE-V Relays can disconnect individual solar panels or strings of panels. Reasons for cutting of panels include maintenance, emergency response, and bypassing panels with efficiency problems.
- In energy storage applications, HE-V Relays can protect against high inrush currents during the charging of Capacitors or storage batteries.