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TECH BLOGS


Why is it essential to short the secondary windings of unused CT cores during testing?
When testing a current transformer (CT) , we short the secondary windings of the other CT cores not under test for safety and accuracy...
KPM Tech Team
Sep 242 min read


Achieving Perfect Accuracy: How CT Analyzers Can Mimic Primary Injection Results
Generator Bus Duct CT Testing using KPM CT/PT Analyzer. In the world of electrical engineering, Current Transformers (CTs) are critical...
KPM Tech Team
Jan 235 min read


Understanding Partial Discharge Measurements & their significance.
Figure 1 - KPM Penta PD with its 5 sensor technology. What is Partial Discharge? PD Definitions according to IEC 60270 “Localized...
KPM Tech Team
Jul 18, 20243 min read


Which relay test kit is the best for me ? How Important is the application support for selecting a make and model of a relay test kit ?
Which relay test kit is the best for me ? How Important is the application support for selecting a make and model of a relay test kit ?
KPM Tech Team
Jun 3, 20243 min read


"The Essential Guide to Choosing Substation Testing Equipment"
Selecting substation testing equipment is crucial for ensuring the safety, reliability, and efficiency of electrical power systems. Here...
KPM Tech Team
May 28, 20242 min read


What are the most common tests performed on power transformer oil by power utilities.
Power utilities employ a range of tests to assess the condition of transformer oil, ensuring the reliability and longevity of power...
KPM Tech Team
May 28, 20243 min read


Comparing the Effectiveness of Tan Delta Test at 10kV and Oil Tan Delta Testing: Which is More Useful?
Detailed Comparison of Oil Tan Delta Testing and General Tan Delta Testing at 10kV for Power Transformers Oil Tan Delta Testing Purpose:...
KPM Tech Team
May 20, 20243 min read


Which PD measurement method is the best and in which conditions?
Introduction: Partial discharge is a phenomenon that occurs in electrical insulation systems when localized breakdowns or discharges...
KPM Tech Team
Jan 23, 20244 min read


Decoding - Power Transformer Bushing CT Testing using KPM CT PT Analyzer
Bushing CT Testing using KPM CT PT Analyzer
KPM Tech Team
Jun 25, 20232 min read


Why only few types of tan delta kits can perform in charged EHV Switchyards ?
Performing tan delta testing in charged switchyards presents unique challenges and safety concerns due to the presence of high voltages...
KPM Tech Team
Jun 25, 20233 min read


What is Dissolved Gas Analysis & Why DGA is conducted ?
Dissolved Gas Analysis (DGA) is a diagnostic technique used in laboratories to assess the condition of transformer oil. Transformers are...
KPM Tech Team
Jun 21, 20232 min read


DC Testing Methods
DC Testing Methods | Insulation Resistance Testing | High-potential (Hi-pot) voltage testing
KPM Tech Team
Jul 2, 20213 min read


What is principle of tan delta? What are its various Modes.
What is the Tan Delta Test? A pure insulator when is connected across line and earth behaves as a capacitor. In an ideal insulator, as...
KPM Tech Team
Jun 1, 20214 min read


What is Lightning Arrester Testing? When to test a LA & How to perform the test?
Surge Arresters ( Lightning Arresters ) are the protective devices for limiting the surge voltages on the equipments / power distribution...
KPM Tech Team
Apr 9, 20212 min read


What is Current Transformer? Explain its principle & key parameters
Principle of operation of CT A current transformer is defined as “as an instrument transformer in which the secondary current is...
KPM Tech Team
Apr 9, 20215 min read


What are relays & what are the type of relays?
What is Relay: A relay is automatic device which senses an abnormal condition of electrical circuit and closes its contacts. These...
KPM Tech Team
Apr 9, 202118 min read


What is Earthing & why earthing is important ? How to test Earthing ?
Introduction: The main reason for doing earthing in electrical network is for the safety. When all metallic parts in electrical...
KPM Tech Team
Apr 9, 20216 min read


What are various type of tests to be performed on Power Transformer ?
Introduction: There are various Test required on Transformer to conform performance of Transformer. Mainly two types of tests are done by...
KPM Tech Team
Apr 9, 20212 min read


What is Surge Arrester & what are type of surge arresters?
What is a surge arrester? Surge arresters are devices that help prevent damage to apparatus due to high voltages. The arrester provides a...
KPM Tech Team
Apr 9, 20216 min read


What is synchronising relay? How to test a synchronising relay using relay test kit ?
Protective relay is a device which maintains the power system equipments and gives an output under an abnormal condition to ensure...
KPM Tech Team
Sep 10, 20202 min read
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