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- brief introduction
- technical parameter
- Product size
Application
DT/SS(X)450 series three-phase electronic combination watt-hour meter for active and reactive energy adopts ultra-low power consumption large-scale integrative circuit technology as well as SMT technology, it presents high reliability and long service life, can measure active energy and reactive energy at three-phase power grid of reference frequency 50Hz correctly, each technical index of product conforms to requirements for three-phase static watt-hour meters for active and reactive energy stipulated in standards GB/T 17215.321-2008 and GB/T 17882-1999.
Main functions
1. Measurement function: measure active energy and reactive energy.
2. Supplied with three-phase power, any one phaseor two phases fail, the accuracy of measurement isn't affected.
3. Output interface: active and reactive and passive pulse output interface with optical coupling isolation.
4. Phase failure indication: Three luminescent tubes indicates the phase failure, they represents A phase, B phase, C phase respectively, some phase failures, its corres-ponding indicator lamp goes out.
Main Technical data
1. Normal working voltage：0.9Un~1.1Un (Un is reference voltage )
2. Power consumption: each voltage circuit power consumption is less than 2W (10VA)
3. Starting current: connected through current transformer, active: 0.002In， reactive: 0.003In；connected directly: active: 0.004In, reactive: 0.005In
4. Creeping: when voltage circuit voltage is 115%Un，current breaks, the active and reactive output test pulse shall?be not more than one.?
5. Error range (%): conform to standards GB/T17215.321-2008 and GB/T17882-1999.
6. Specified working temperature: -10℃~45℃
7. Utmost working temperature: -25℃~55℃
8. Relative humidity: 25~95%?
Produce Specification
External And Installation Size
