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Three-Phase Electromechanical Watt-Hour Meter

Three-Phase Electromechanical Watt-Hour Meter
HLT01 three-phase four-wire meter is designed to meet the latest
IEC60521 and BSEN60521 standards for measuring active energy in
three-phase four-wire alternating current power grids. Connection is
direct or by instrument-transformers. The average service life (MTTF)
of the meter is 15 years and the maximum overload capacity is 400%Ib.
1) Meter case:
a) Consists of a base, cover and a terminal cover
b) Meets the protection requirements of IEC60529
c) Available in assorted designs
2) Terminal block:
a) Steel or PC base for meter
b) Terminal block is molded of heat- and flame-resistant bakelite
c) Voltage test link can be located inside or outside of the meter
3) Driving system:
a) With three electromagnet elements
b) Each element consists of a voltage element and a current element,
both of which are mounted on the meter frame with two screws
c) Voltage coil is enwrapped in a thermoplastic case to ensure fine
d) Voltage element has a low load and inductive load adjustment
Technical data
1) Meter type: HLT01 (DT862)
2) Applicable standards: IEC60521
3) Reference voltage (Un):
a) 3 x 57.7/100V
b) 3 x 220/380V
c) 3 x 230/400V
d) 3 x 240/415V
4) Reference frequency (fn): 50Hz, 60Hz
5) Power losses in voltage circuit at Un 50Hz: 1.0W/5VA
6) Non-running with no-load: 0.8~1.1 Un
7) Starting current: 0.5%Ib
8) Rated load toque at unity PF, Ib: > 850&u; Nm
9) Rotor weight: 54g
10) Meter weight: ~3.1kg
11) Meter base: steel, bakelite
12) Meter cover: ABS, bakelite, transparent PC
13) Terminal cover: ABS, bakelite, PC
14) Register: cyclometer single, unidirectional
15) Option: reverse running stopper

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