CT Error Tester (DK-45L)

Our DK-45L CT error testers have been developed with high-level testing technology and large-scale electronic circuit design, which in line with relevant national regulations. The tester solves the problems of CTs and voltage transformers worked intensive and operated complicated meanwhile, this product is reliable and powerful.
Character
DK-45L CT error tester has the functions of using the recursive method measure CT error and using the potential difference method measure voltage transformer error in one, to facilitate launch field work of measure device on-site verification.
To verify the CT on site use the simple test wiring and operation instead of standard CT, up-flow device, Load box, current control box and the High-current wires, to realize the verification of CT, which reduce the intensity of work and improve efficiency.
The interior of DK-45L CT has the same ratio of standard voltage transformer which is equivalent to the CT that be tested. The accuracy class of DK-45L CT can reach level 0.05, measuring the ratio and load error of the CT that be tested accurately, calculating the error of transformer according to the result of impedance and admittance test.
Use the power supply test that close to the capacity factor of industrial frequency and different frequency, to prevent the electromagnetic radiation and series connection interference on site.
Measure the width of scope, may reach 5A/5A~25000A/5Aor 25A/1A~5000A/1A.
with the function of CT ratio and secondary winding internal resistance test.
Adopt the 680× 480 high-resolution big screen LCD, with humanized interface and design and auxiliary touch screen, to facilitate the operation.
Adopt the accurate software algorithms, improving the accuracy of test data.
To determine the external line status intelligently, prompting wiring error, ratio, polarity errors, etc.
Change test data into the integer automatically, and judge whether it exceed the range of error, outnumbers data shown in bold shadow, to intuitive the data of transformer.
Issue on-site test conclusion directly, is that qualified or unqualified.
The large scale Memory can store on-site testing data more then 1000.
The printer attached, to print test data in the field.
Adopt the technique of chassis anti-vibration and anti-pressure, to protect the safety of on-site operation staff and equipments.

The main performance specification
The CT error test section
1) The accuracy class of whole equipment: 1/3 of the error limitation of the CT that be tested.
2) The range of testing: 5A/5A~25000A/5A or 25A/1A~5000A/1A
The working range of the CT that be tested: 1%~120%
The secondary burden: 2.5VA~300VA COSφ =0.1~1.0
The range of accuracy class of the CT that be tested: 1.00.50.5S0.2 and 0.2S
The measurement error of resistance and admittance ≤ 5.0%
The range of measurement: R: 0.00Ω~20.0Ω
Y: 0.000mS~100.0mS

The section of the CT calibrator
1) essential error:
In-phase component: X=(X× 2%+Y× 2%2 numbers range)
Y=(X× 2%+Y× 2%5 numbers range)
"X""Y"__display data of instrument
"in the range of 5 numbers"__quantization error of instrument
Percentage: 1 level
The range of testing: F: 0.0000%~200.0%
δ : 0.000'~999.9'

2) The rated working voltage: 100/3V100/V100V
3) the working range of CT that be tested: 20%~120%
Power consumption: 20VA
Accuracy class: 0.05S level
The largest overall dimension(cm): L46W35H13.5
Weight(kg): 10.0