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Digital three phase 7P LCD DIN energy meter
ITEM NO:WP1250SA
Click:647
Detailed description

DIN energy meter specification:


Item No

Accuracy

Rated voltage Ub

Rated current(A


1.0

220/380V

57.5/100V

5A/CT520)、530)、1050A

1060A1590A2080A20100A565A5100A

Remark:额定电流栏中,括号前的数值为标定电流值Ib,括号内的数值为额定最大电流值Imax。

2.2.1 误差限:

带有平衡负载时电能表的基本误差限

Current value

PF(COSΦ

百分数误差限(%

direct input

input via CT

class 1

class 2

0.05Ib

0.02 Ib

1.0

±1.5

±2.5

0.1 Ib

0.05 Ib

0.5L

±1.5

±2.5

0.8C

±1.5

0.1 Ib~1max

0.05 Ib~1max

1.0

±1.0

±2.0

0.2 Ib~1max

0.1 Ib~1max

0.5L

±1.0

±2.0

0.8C

±1.0

Basic error limit of energy meter with single - phase load:

current value

power factor(COSΦ

百分数误差限(%

direct input

input via CT

class 1

class 2

0.1 Ib~1max

0.05 Ib~1max

1.0

±2.0

±3.0

0.2 Ib~1max

0.1 Ib~1max

0.5L

±2.0

±3.0


2.2.2起动

在额定电压、额定频率及COSΦ=1的条件下,当电能表负载电流为下表规定值时,电能表能起动并连续计量电能。


meter type

class 1

class 2

direct inpiut

0.004Ib

0.005 Ib

input via CT

0.002 Ib

0.003 Ib



Diagram

Key word: DIN ENERGY METER