{"product_id":"digital-voltage-and-frequency-line-monitoring-relay","title":"Relay V\/HZ - Digital Voltage and Frequency Line Monitoring Relay","description":"\u003cp\u003e\u003cspan\u003eTrue RMS digital protection \u003c\/span\u003e\u003cstrong\u003eRelay V\/HZ\u003c\/strong\u003e\u003cspan\u003e. Leakage protection for: Over voltage, under voltage, start up standby generators, operation of mains failure units, switching standby hybrid supplies, protecting computer supplies, close control of equipment. Gensets - to monitor correct operation of the AVR (Automatic voltage regulator) and excitation system. Motors-Some electric motors are voltage sensitive, and can overheat and burn out when operated at low voltage. UPS supplies - When the main A. C. supply falls outside the acceptable operating voltage window the relay can initiate a change over to an alternate or standby supply. Motors - Single Phasing. Incorrect sequence connection.\u003c\/span\u003e\u003c\/p\u003e","brand":"Sifam Tinsley","offers":[{"title":"Default Title","offer_id":57653620048259,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/2745\/4595\/files\/ELR_relay_VHZ-1-332x332-1-332x332.jpg?v=1774099915","url":"https:\/\/sifamtinsley.co.uk\/products\/digital-voltage-and-frequency-line-monitoring-relay","provider":"Sifam Tinsley UK","version":"1.0","type":"link"}