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Digital Tester (Comparator) for Instrument Transformers / Serving a diverse client base around the world, CIC is a leading manufacturer and supplier of current transformers, potential transformers (voltage transformers), distribution transformers, epoxy insulators, electronic meters, and other electrical and electronic products.

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Digital Tester (Comparator) for Instrument Transformers

WHES-1Cx

Digital Tester (Comparator) for Instrument Transformers is designed for the testing of ratio error and phase displacement of current transformers and voltage transformers (potential transformers).

About the Product

Digital Tester (Comparator) for Instrument Transformers is designed for the testing of ratio error and phase displacement of current transformers and potential transformers (voltage transformers). High in accuracy and wide in its measuring range, this calibrator is easy to use and provides a wide range of testing current and testing voltage to satisfy various CT and PT (VT) testing requirements.

Specifications

Model WHES-1Cx
Error Measurement Ratio Error & Phase Error
Rated Current 5A, 1A
Rated Voltage 100 ~ 230V
Multiplier 1/√3, 1/3, 1, 1.5, 2
Accuracy Class ±2%
Operation Range 1% - 200% In / 20% - 200% Un
Frequency 50Hz/60Hz
Ratio-Error Range ±0.0001% ~ ±19.99% (3 Ranges: 0.1999%, 1.999%, 19.99%)
Minimum Resolution: 0.0001%.
Phase-Error Range 0.01' ~ ±900' (3 Ranges: 9.00', 90.0', 900')
Minimum Resolution: 0.01'
Impedance Range 0.001Ω~ 19.99Ω (2 Ranges: 1.999Ω, 19.99Ω)
Minimum Resolution: 0.001Ω
Admittance Range 0.001ms ~ 19.99ms. (2 Ranges: 1.999ms, 19.99ms)
Minimum Resolution: 0.001 ms
Alarm Function Sound & Light Alarms

Input Load
(Load Impedance)


On Secondary of Reference CT: ≈0.11Ω, COSθ≈1.0
On Secondary of CT Under Test: ≈0.003Ω, COSθ≈1.0
On Secondary of Reference PT (VT): ≈0.05VA (when U = 100V)

Communication Interface RS232 Serial Communication Interface
Display LCD
Power Supply AC 220V±10%, 50Hz/60Hz
Power Consumption < 20VA
Note: Technical data listed above are default values. Customer specifications can be requested.


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