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Showing posts with label Test. Show all posts
Showing posts with label Test. Show all posts

OIL TESTING OF POWER EQUIPMENT BASIC INFORMATION AND TUTORIALS

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Why do we conduct oil testing of our power equipment? Many medium- and high-voltage transformers and circuit breakers utilize different ty...

INFRARED SCANNING FOR HOTSPOT OF ELECTRICAL COMPONENTS BASIC INFORMATION

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What is Infrared Scanning? How is it done? Infrared scanning is a method that is utilized to locate high-resistance connections ("hot...

MOTOR SURGE COMPARISON TESTING BASIC INFORMATION AND TUTORIALS

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What is Motor surge comparison testing? How is it done? Motor surge comparison testing addresses the problem of insufficient test voltage ...

TRANSFORMER TURNS RATIO TESTING BASIC INFORMATION AND TUTORIALS

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What is Transformer turns ratio (TTR) testing? How is it done? The voltage across the primary of a transformer is directly proportional to...

WINDING AND CONTACT RESISTANCE TEST BASIC INFORMATION AND TUTORIALS

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What are winding and contact resistance testing? Winding and contact resistance are similar in that both are looking for a very low ohmic ...

INSTRUMENT TRANSFORMERS TESTING BASIC INFORMATION AND TUTORIALS

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What is instrument transformer testing? There are two common designations of instrument transformers: CTs and voltage transformers (VTs) o...

PROTECTIVE RELAY TESTING BASIC INFORMATION AND TUTORIALS

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What is protective relay testing? How to do protective relay testing? Protective relaying is a very broad subject. Only a brief overview c...

MEDIUM AND HIGH VOLTAGE CABLE TESTING BASIC INFORMATION AND TUTORIALS

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Most cables that are rated for use at voltage levels above 600 V are shielded cables. A shielded cable has a conductor in the center, a semi...

HIGH POTENTIAL (HI POT) TESTING BASIC INFORMATION AND TUTORIALS

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What is HiPot testing? High-potential testing, as its name implies, utilizes higher levels of voltage in performing the tests. It is gener...

INSULATION RESISTANCE TEST BASIC INFORMATION AND TUTORIALS

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What is insulation resistance test? How to conduct insulation resistance test? Insulation resistance tests are typically performed on moto...

AIR QUALITY TESTING AND MONITORING METHODS OF SAMPLING

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Indoor air quality testing may be necessary to ensure employee safety. Testing and monitoring may be applied to those conditions where emplo...