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| DD28 single-phase watt-hour meter
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Application
DD28 single-phase watt-hour meter is a kind of induction merer,
which is applicable to measure the rated frequency 50Hz and power loss
in electrified wire netting. All technical targets are comletely conformed
to National Standard GB/T15283-94 and International StandardIEC521. |
Structire and fearures
The meter has separable electromagnet and the bearing has four
kinds; single-jewel,dual hewel,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.
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| Technical parameters |
| Type |
Accuracy
(class) |
Rated
voltage(V) |
Rated
current(A) |
Overload
current(A) |
Starting
Current |
Insulation
Performance |
| DD282 |
2 |
220V |
2(4),2.5(10),
3(6),5(10),
10(20),20(40)
30(45),40(80) |
200%lb |
0.5%lb
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AC voltage 2kV
for 1 minute
impulse voltage
KV
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| DD283 |
2(6),3(9)
5(15),10(30)
15(45),20(60) |
300%lb |
| DD284 |
5(20),3(12)
10(40),15(60)
20(80) |
400%lb |
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| Outline and installation dimensions
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