IEC Three Phase Electromechanical Energy Meter with ABS , Bakelite , PC Terminal cover
IEC Three Phase Electromechanical Energy Meter Four wire
The DT86 three-phase fore-wire meter is designed to meet the latest IEC62053-21,IEC62052-11 standards for measuring active energy in three-phase four-wire alternating current power grids. Connection is direct or by instrument transformers.. It has an average service life(MTTF)of 20 years and maximum overload capacity of 600%Ib.
Terminal block
The terminal block is molded of heat-and flame-resistant Bakelite . It is fixed in the extended meter base. The voltage test link can be located inside or outside of the meter case.
Driving element
The driving element consists of a voltage element and a current element, both of which are fixed on the aluminum alloy frame. It has a load curve compensation device and inductive load adjustment mechanism.
Register Cyclometer single, unidirectional, Jumping
Technical data:
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1
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Meter type
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DT86
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2
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Applicable Standards
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IEC62053-21 sw IEC62052-11
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3
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Accuracy class
(according to IEC 60521)
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Transformer
operated: Class 1
Direct connected:
Class2
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4
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Average service life (MTTF)
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20 years
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5
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Basic current (lb)
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1.5 3 5 5 10 15 20 30
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6
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Maximum current (lmax)
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6 6 10 20 40 60 80 100??
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7
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Rating current of transformer
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5A Direct connection
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8
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Reference voltage Un
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3×57.7/100V,3×220/380V
3×230/400V,3×240/415V
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9
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Reference frequency fn
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50Hz,60Hz
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10
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Power losses in voltage circuit at? 50Hz Un
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1.0W/4.5VA
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11
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Power losses in current circuit at? 50Hz Un Ib
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<0.5VA
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12
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Non-running with no-load
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0.8~1.1Un
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13
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Starting current
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0.4%Ib 0.5%Ib
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14
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Mean temperature coefficient
From 0.1Ib to Imax at unity PF
From 0.2Ib to Imax at unity 0.5 lagging
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<0.08%/?
<0.12%/?
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15
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Insulation level
Withstand A. C. Voltage for 50Hz, 1min
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>2kV(when bakelite base>4kV)
>6KV(when bakelite base>8kV)
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16
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Rated load torque at unity PF, Ib
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>800μMn
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17
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Weight of rotor
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48g
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18
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Weight of meter
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?.5kg
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19
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Meter base
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Steel, Bakelite, PC
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20
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Meter cover
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Bakelite, transparent PC
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21
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Terminal cover
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ABS, Bakelite, PC
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22
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Register
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Cyclometer single, Unidirectional, Jumping
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|
23
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Option
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Reverse running stopper
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