Photovoltaic arrays are used primarily in two ways to:
- Charge batteries that are used to power remote loads where installing a connection to the utility grid would be cost prohibitive
- Energize installations where the DC power is converted to 60 HZ AC power through a solid-state inverter
NK Technologies’ DC Current Transducers can be installed so the output of the arrays can be monitored. These transducers are available in bipolar versions so that current may be measured during charging or discharging of the batteries.
Additionally NK Technologies’ Power Transducers can be installed to monitor the voltage, current and frequency output from the inverter.
Equipment Ground Fault Monitoring
As we become more aware of occupational health and safety so the need for protection against ground faults is growing. Industrial electrical equipment is fed via a distribution system which in turn is connected to a main feed. Ground fault protection may be installed, for instance at a main breaker, protecting the branch circuit but not necessarily a valuable or critical piece of equipment. Industrial Ground Fault Sensors from NK Technologies are designed to be installed in individual pieces of equipment or their electrical feed. The sensors provide an on/off output that may be used to operate a circuit interruption device like a shunt trip breaker or feed into an alarm system. With over 100 models to choose from, there’s sure to be one to fit your application.