Search

Monthly Archive for: «February, 2014»

Testing Procedures for HV Voltage Transformers

Equipment required for testing General inspection Insulation Resistance Test Polarity Test Transformer Turns ratio test Following equipment is necessary to perform testings: Polarity test kit Megger 500-5000V Ohmmeter Multimeter Autotransformers & Step-up… Read more

Feb 28, 2014 | Edvard

Testing Procedures for HV Voltage Transformers (photo credit: hvcafrica.com)

Purposes and Examples of Safety Interlocking Devices

Most switchboards and motor control centres are fitted with a variety of electrical and mechanical safety interlocking devices. Their purposes are to protect against for example: Withdrawing the switching device while it is… Read more

Feb 05, 2014 | Edvard

Purposes and Examples of Safety Interlocking Devices

Conceptual Model of Smart Grid Framework by IEC

From a communication point of view, each system plays the role of either supplier or consumer of information, or more typically both. In addition to this intersystem communication, these systems consist of… Read more

Feb 03, 2014 | Edvard

Conceptual model of smart grid framework