Zhejiang Longer Electric Co., Ltd.

Single-Phase Electric Watt-hour Meter Manufacturer

Electric Watt-hour Meter

Single-Phase Electric Watt-hour Meter

  1. DD28 Single-phase Electric Watt-hour Meter
Description:
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 conformed to National Standard GB/T15283-94 and International Standard IEC 521.
Structure and Features
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.
    1. Electric Watt-hour Meter DD28-A
    2. Electric Watt-hour Meter DD28-B
    3. Electric Watt-hour Meter DD28-C
    4. Electric Watt-hour Meter DD28-D
    5. Electric Watt-hour Meter DD28-E
    6. Electric Watt-hour Meter DD28-F
    7. Electric Watt-hour Meter DD28-G
    8. Electric Watt-hour Meter DD28-H
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

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