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Single-phase Watt-hour Meter

Single-phase Watt-hour Meter

DD28 Single-phase Electric Watt-hour Meter(DD28-A,B,C,D,E,F,G,H)

Description of DD28 Single-phase Electric Watt-hour Meter
DD28 single-phase electric watt-hour meter is a kind of induction meter, which is applicable to measure the rated frequency 50Hz and power loss in electrified wire netting. All technical targets are completely conforming to National Standard GB/T15283-94 and International Standard IEC 521.
Structure and Features of DD28 Single-phase Electric Watt-hour Meter
The DD28 single-phase electric watt-hour meter has separable electromagnet, and the bearing has four kinds: single-jewel, dual jewel, magnetic thrust and magnetic floating. The case has three kinds: aluminum, plastic and glass. The die-casting frame is alloy aluminum with excellent mechanical strength.

Technical Parameters of DD28 Single-phase Electric Watt-hour Meter

Type Accuracy
(class)
Rated
voltage(V)
Rated
current(A)
Overload capacity Starting current Insulation
performance
DD282 2  
220
2(4), 2.5(10)
3(6), 5(10)
10(20), 20(40)
30(60), 40(80)
200%Ib 0.5%Ib AC voltage 2KV for 1 minute impulse voltage 6kV
DD283 2(6), 3(9)
5(15), 10(30)
15(45), 20(60)
300%Ib
DD284 5(20), 3(12)
10(40), 15(60)
20(80)
400%Ib

Outer and Mount Dimension