CT & PT TESTING KITS
FAQ
Video
Theory
CT/PT Analyzer C+
KPM-CTPTA C+ Analyzer is an all in one solution for testing all type of CT/PT (all major tests for CTs/PTs Winding & Cores ) as per IEC standards with highest accuracy. It is an equipment with high ROI ( Return On Investment ) . Below features make KPM CT/PT analyzer C+ and ideal tool for CT/PT Manufacturer , Testing labs , Substations (Upto 765KV) , Power Plants etc.
CT/PT Pro
KPM-CT/PT Pro is an automatic device used for testing of instrument transformers by voltage ratio method .
CT/PT Pro is capable of conducting below tests on both CTs & PTs
1) Turns Ratio ( Ratio Error and Phase Errors )
2) Excitation Curve Plotting
3) Winding Resistance
4) CT Secondary Burden
3) Polarity
Technical Specifications -:
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Highest ROI with never before value proposition .
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Easy to operation. KPM- CT PT Pror automatically completes the test and generates report .
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Maximum output voltage of 2000V for excitation characteristic test .
CT HEAT RUN TEST DEVICE
Current transformer heat run test device first measures the impedance value of the connected current transformer sample loop, and then automatically controls the output current of the device to the target test current value according to the impedance value and the set test current value.
CT/PT Analyzer
KPM-CT/PT Analyzer is an all in one solution for testing all type of CT/PT as per IEC standards. It is an equipment with high ROI ( Return On Investment ) . Below features make KPM CT/PT analyzer and ideal tool for CT/PT Manufacturer , Testing labs , Substations (Upto 765KV) , Power Plants etc.
HVCTR ( HV CT Ratio Tester)
Online HV CT Ratio Tester (KPM-HVCTR) – High Voltage Current Transformer Ratio Tester
As the name suggests Online HV CT Ratio Tester (KPM-HVCTR) is an innovative product to measure Key line / CT parameters of upto 33KV system .
Online HV CT Ratio Tester (KPM-HVCTR) is used for the determination of:
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Primary & Secondary Current Measurement
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Current Transformation Ratio
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Phase Sequence
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Polarity
Comparison - CT PT Analyzer & CT PT Pro
Video - CT/PT Analyzer
KPM CT PT Testing Videos
KPM CT PT Testing Videos
Unboxing LA Tester , KPM LA 103+
KPM TAN DELTA - 12 KV (https://www.kpmtek.com/tandelta)
UNBOXING RELAY TEST KIT - KINGSINE K3063I
Testing Tan Delta in 765kV Live Switchyard
Theory - CT/PT Testing
Frequently Asked Questions ( FAQ )
CT (Current Transformer) – Theory
Like any other transformer, a current transformer has a primary winding, a magnetic core, and a secondary winding. The alternating current flowing in the primary produces an alternating magnetic field in the core, which then induces an alternating current in the secondary winding circuit. An essential objective of current transformer design is to ensure that the primary and secondary circuits are efficiently coupled, so that the secondary current bears an accurate relationship to the primary current.
PT (Potential Transformer) – Theory
A Voltage Transformer theory or Potential Transformer theory is just like theory of general purpose step down transformer. Primary of this transformer is connected across the phases or and ground depending upon the requirement. Just like the transformer, used for stepping down purpose, potential transformer i.e. PT has lower turns winding at its secondary. The system voltage is applied across the terminals of primary winding of that transformer, and then proportionate secondary voltage appears across the secondary terminals of the PT.
CT/PT Testing
Below is the list of Major tests conducted on CT & PT
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Insulation Resistance Test
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Polarity Test
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Secondary/Loop Resistance Test
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Burden Test (optional test)
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Magnetization Curve Test (optional test)
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Hysteresis Curve Test
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Turns Ratio Test (optional test)
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Primary Injection Test
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High Voltage Test
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