| DD28 Type Single Phase Watt-hour Meter | |
|
| 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. |
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| Structure and features |
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| 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 |
 |
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