Three Phase Energy Meter Test bench

Specification

T:23°C±1°C;

H:40%~60%RH.;

 Power supplier

Three phase:AC220/380V±15%;

Frequency:50Hz±5%

 Class: 0.05

Output voltage:

Measuring range:3×57.7/100/220/380V

Setting range:0~120%

Setting accuracy:better than 0.01%

Output stability:≤0.05%/180s

Output degree of distortion:≤0.5%

Output capacity:>15VA/position

Load characteristic:resistance, inductive, capacitive

Capacitive load:4uF

 Output current

Measuring range: 3×0.01A,0.1A,0.25A,0.5A,1A,2.5A,5A,10A,25A,50A,120A

Setting range:0~120%

Setting accuracy:better than 0.01%

Output stability:≤0.05%/180s

Output degree of distortion:≤0.5%

Output capacity:>25VA /possition

Load characteristic:Resistance, inductive

Start current output :min 1mA ,accuracy:≤5%

Output power:

Stability :≤0.05%/180s

Start power :accurancy≤ 5%;

Output phase position

Setting range :0~359.9°

Setting accuracy:0.01°

 Output frequency:

Setting range:45~65Hz

Setting accuracy:better than 0.01 Hz

Output balance

a.Output voltage unbalance degree:≤0.2%

b.Output current unbalance degree:≤0.2%

 Unit configuration:

Standard configuration for energy meter

Class:0.05

Multi-circuit voltage transformer

Class:0.01

Voltage: 60/120/240/480V

Current:1A/10A/120A

Meter position:3

Supervisory instrument

Voltage

Class:0.05%RD  

Position:6

Resolution:0.001A

 Current

Class:0.05%RD

Position:6

Resolution:0.0001A

 Active power

Accuracy:0.05%RD

 Reactive power

Accuracy:0.1%RD

 Power factor

PF :-1.0~0~1.0

Accuracy:0.05%RG(PF:0.5-1)

position:5

Resolution:0.0001

Phase position(V/A)

Measuring range(θ):0-360°

Class:0.05°

Position:6

Resolution:0.001°

 Frequency

Class:0.02%RD(45-65Hz)

Position:6

Resolution:0.0001Hz

Error processing system

1)equipped with internal error processing unit for each meter position

2)calculate and display error value, check and rest,

4)Protection for incorrect connection

RS485