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DD28 Type Single Phase Watt-hour Meter

Application
 
DD28 single-phase watt-hour meter is a king of induction meter, which is appli. cable to measurethe rated frequency 50Hz and power loss in electrified wire netting. All technical targets arecompletely conformed to National Standard GB/T15283-94 and international Standard IEC521.
 
Structure and features
 
The 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. Thedie-casting frame is alloy aluminum with excellent mechanical strength.
Technical parameters
Type Accuracy
(class)
Rated voltage
(V)
Rated current
(A)
Overload
Capacity
Starting
Current
Insulation
Performance
DD282
2
220V 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
Overall & Installation Dimensions