Induction Cup Relay Working Principle Construction and Types
Induction Cup Relay This relay in nothing but one version of induction disc relay. Induction cup relay work in same principle of induction disc relay. The basis construction of this relay is just like...
View ArticleOver Current Relay Working Principle Types
In an over current relay or o/c relay the actuating quantity is only current. There is only one current operated element in the relay, no voltage coil etc. are required to construct this protective...
View ArticleMatokeo ya mechi za nusu fainali, Azam FC katinga fainali
Nusu fainali ya michuano ya kombe la Kagame imechezwa July 31 kwa timu nne kushuka dimbani, huku timu mbili pekee zitakazoshinda ndio zitakazo cheza mchezo wa fainali jumapi ya August 2 Uwanja wa...
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View ArticleDifferential Relay
The relays used in power system protection are of different types. Among them differential relay is very commonly used relay for protecting transformers and generators from localised faults....
View ArticleGenerator Protection
A generator is subjected to electrical traces imposed on the insulation of the machine, mechanical forces acting on the various parts of the machine, and temperature rises. These are the main factors...
View ArticleInter Turn Fault Protection of Stator Winding of Generator
Inter turn stator winding fault can easily be detected by stator differential protection or stator earth fault protection. Hence it is not very essential to provide special protection scheme for inter...
View ArticleRotor Earth Fault Protection of Alternator or Generator
The rotor of an alternator is wound by field winding. Any single earth fault occurring on the field winding or in the exciter circuit is not a big problem for the machine. But if more than one earth...
View ArticleStator Earth Fault Protection of Alternator
This is to be noted that, the star point or neutral point of stator winding of an alternator is grounded through an impedance to limit the ground fault current. Reduced ground fault current causes...
View ArticleLoss of Field or Excitation Protection of Alternator or Generator
Loss of field or excitation can be caused in the generated due to excitation failure. In larger sized generator, energy for excitation is often taken from a separate auxiliary source or from a...
View ArticleMwandani wa rais wa Burundi auawa
Mamlaka nchini Burundi inasema kuwa jenerali Adolphe Nshimirimana ameuawa. Imeripotiwa kuwa alifariki katika shambulizi la roketi katika gari lake kaskazini mwa mji mkuu wa Bujumbura. Jenerali Adolphe...
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Sudan Kusini imetambuliwa rasmi na kamati ya kimataifa ya Olimpiki na hivo kuruhusiwa kushiriki katika Olimpiki mwakani huko Rio de Janeiro. Sudan Kusini ilipata uhuru miaka mine iliyopita, na hivo...
View ArticleWayahudi waandamana dhidi ya wanamgambo
Maelfu ya watu nchini Israeli wameshiriki kwenye maandamano wakiitaka serikali kuchukua hatua kali zaidi dhidi ya wayahudi wanaotajwa kuwa wanamgambo. Waandamanaji katika mji wa Tel Aviv walionyesha...
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View ArticleMjue kwa undani Zahara M. Michuzi Ubunge viti maalum Tabora
Nyota njema huonekana asubuhi. Bila shaka umewahi kusikia msemo huu. Kwa Zahara Muhidini Issa Michuzi, nyota yake njema ni tunu ya uongozi. Tangu alipoweza kutambua maana na tofauti ya jambo jema na...
View ArticleTaarifa kuhusu tatizo la umeme katika uwanja wa ndege wa Mwanza
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View ArticleOhms Law,Equation Formula and Limitation of Ohms Law
The most basic quantities of electricity are voltage, current and resistance. Ohm’s law shows a simple relationship between these three quantities, hence this law can be considered as the most basic...
View ArticleFaraday First and Second Laws of Electrolysis
Faraday’s Laws of Electrolysis Before understanding Faraday’s laws of electrolysis , we have to recall the process of electrolysis of a metal sulfate. Whenever an electrolyte like metal sulfate is...
View ArticleGauss Theorem
We know that there is always a static electric field around a positive or negative electrical charge and in that static electric field there is a flow of energy tube or flux. Actually this flux is...
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