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single phase watt hour meters 1.High quality, competitive price2.Good quality 26.3.Long life using
Application
DD862 type single-phase watt-hour meter, that is, inductance type single-phas e AC acti ve e nerg y watt-hour meter, it is used for measuring active energy at single-phase AC power grid of 50Hz or60Hz. It has many features such as original design, reasonable structure, high overload capability, lower power consumpt ion, long service life, good stability, convenient adjustment and maintenan ce, etc.
Main Technical data
1. The watt-hour meter conforms to all technical requirements stipulated in national standard GB/T 15283 AlternatingCurrent Watt-hour Meters for Active Energy (Classes 0.5, 1 and 2), and total technical re quirements for single-ph asewatt-hour meters (class 2) stipulated in international standard IEC 521.2. The watt-hour meter can be designed into two kinds: direct connection type and the type of connection throughmulti-purpose current transformer or multi-purpose voltage transformer.3. According to users requirements, the special watt-hour meters can be designed, including the watt-hour meter thathas different reference frequency, reference voltage, different current specifications, positive and negative accumulationand not-return function4. Start: under reference voltage, reference frequency and COS =1, when the load current can't exceed 0.5% of basiccurrent, the rotor of watt-hour meter can start and rotate continuously.5. Cre eping: when current circuit of watt-hour meter has no current, and the voltage applied to voltage circuit is 80%~110%of reference value, the rotary disc of watt-hour meter rotates not more than 1 circle.6. Power consumption: under the reference voltage, reference temperature and reference frequency, the active energyconsumption of watt-hour meter voltage circuit can't exceed 2W.7. Dielectric performance: when the watt-hour meter can withstand impact waveform (standard 1.2/50 s waveform)and impact voltage of 6Kv peak value for 10 times respectively, it won't be damaged. Thecircuit-to-earth of watt-hourmeter can withstand sine waveform of 2kVand 45~65Hz at AC voltage for 1min.
single phase watt hour meters