Traditionally substations have used circuit breakers, current transformers (CT), voltage transformers (VT) and protection relays all wired together using...
If you want to check a circuit is dead (not live), you should always use the three point method. First check a known live circuit, then check the dead...
Most installations involve some form of lightning protection system which is connected to an earth electrode. The function of the earth electrode is to...
Capacitors have numerous applications in electrical and electronic applications. This note examines the use of capacitors to store electrical energy....
A single phase system is perhaps the most common type of system most people are familiar with. This is what people have in their homes and what appliances...
GE's latest thinking on product manufacturing is he Shingijutsu philosophy or Lean production system. They have started applying this at the Louisville...
Dielectrics (insulating materials for example) when subjected to a varying electric field, will have some energy loss. The varying electric field causes...
Current transformers (CTs) are used to convert high level currents to a smaller more reasonable level for use as inputs to protection relays and metering...
Exposure to time varying magnetic fields, from power frequencies to the gigahertz range can have harmful consequences. A lot of research has been conducted...
While there are a vast array of cable insulation materials, these are often divided into two general types; Thermoplastic or Thermosetting. For example...
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