Vam electro devices manufactures a single phase domestic electromechanical energy meter. This is an induction type kwh meter type vam 1lr. The energy meter is used to measure active energy in single phase 2 wire system. The product is used in domestic metering. Consistency and accuracy is ensured by the superior design and constructional features backed by high quality components. This standard of performance is maintained throughout its working life. Features of the energy meter from vam electro devices: frame - die cast aluminium frame; base and cover - crca sheet steel or polycarbonate; rotor - 99.7% pure aluminium with engraved graduations and anticreep holes; upper bearing - highly polished nonmagnetic stainless steel 0.55 mm diameter; electromagnet - both current and pressure electromagnets are made of crno low watt loss silicon steel; brake magnet - 4-pole pressure die cast alnico v or vi; register - 6-digit cyclometer type register capable of reading 99999.9 or unidirectional counter; adjustments - three independent adjustments for full load, inductive load and low load provided; bottom bearing - double jewel or magnetic suspension. Technical specifications of the energy meter manufactured by vam electro devices: reference standard - is 13010:1990; reference voltage - 230/240 v ac, 50 hz; voltage circuit power loss - less than, 1 w; current ratings - 2.5 10 a, 10 40 a 2.5 5 a, 5 10 a, 10 20 a or 20 40 a, 5 20 a or 5 30 a; revs/kwh: 2400, 1200, 600 or 300; starting current - 0.75% of lb; hv test: 2 kvacfor1 minute; and rpm at basic current - less than 18.
