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HES-1W Low-Current CT Accuracy Testing System

Time:2018/5/16 14:17:13

Product picture:

HES-1W Low-Current CT Accuracy Testing System

Product details:


1.  Type of tested object: Low-Current CT

2.  Type of object CT: Current Input / Current Output

3.  Measure item: Ratio errors & Phase errors of the Small-Current CT

4.  Testing system included:

ØHES-1W Low-Current  CT Tester

ØHLW-3 Two-Stage Standard Current Transformer

ØHES CT Test Power

5. Main Technical Datas:

1) HES-1W Low-Current CT Tester (Bridge)

Product model:

HES-1W

Display model:

LED

Measure item:

Ratio errors & Phase errors of the low-Current CT

Rated current:

1mA, 2mA, 5mA, 20mA, 50mA

Multiplier:

0.5, 1, 1.5, 2, 3

Accuracy class:

±2%

Operation range:

(1%-200%).In

Frequency:

50/60Hz

Ratio error range:

±0.0001% ~ ±19.99%(Three positions: 1.999‰, 19.99‰, 199.9‰)

Minimum resolution: 0.0001%.

Phase error range:

0.01' ~ ±900'(Three positions: 9.00', 90.0', 900')

Minimum resolution: 0.01'

Alarm Function:

Provided the sound & light alarm function when the polarity abnormal or ratio inconsistent.

Provided load for object CT:

0Ω, 5Ω, 10Ω, 20Ω,   30Ω, 50Ω, 100Ω, 200Ω, 250Ω, 500Ω  (COSφ=1.0)

Input load on standard side:

10Ω  (COSφ=1.0)

Communication Interface:

Provided the RS232 serial communication interface

Power supply:

AC 220V±10%

Power consumption:

< 20VA

 2) HLW-3 Two-Satge Standard Current Transformer

Product Description:

HLW-3 Two-Stage Current Transformer

Frequency:

50Hz/60Hz

Primary Current (A):

0.6, 1, 1.5, 2.5, 3, 4, 5, 6, 7.5, 8, 10, 15, 20, 30, 50, 60

Secondary Current (mA):

1, 1.5, 2, 2.5, 3, 10/3, 4, 5, 20/3, 7.5, 8, 10, 15, 50/3, 20, 25, 30, 100/3, 50

Rated Current Ratio:

Arbitrary combination of Pri. Current and Sec. Current

Accuracy Class:

0.02%

Operation Range:

(5%-300%).In

Secondary Burden:

10Ω

Power Factor:

COSΦ=1.0

Voltage Level:

AC 600V

Insulation:

Air

Operating Condition:

Temperature: -5°C~+40°C

Relative Humidity (RH): up to 85% (max 90%)

Dimension (mm) :

460x380x160

Weight (kg):

~15kgs

3) HES CT Test Power

Input Voltage:

AC 220V±10%  50/60Hz

Output Current:

AC 5A, 50A, 100A

Rated Capacity:

~500VA

Output Voltage:

Provided the Coarse adjustment & Fine adjustment

Adjustment Model:

Manual adjustment

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