What is Triac?

click What is TRIAC? Triac belongs to thyristor family. The triac is the most widely used device in an alternating current applications. Basically, it is a combination of two SCRs connected in anti-parallel manner. Triac can conduct in both directions positive as well as negative of an ac supply. A triac is widely used in industries […]

Conducting Materials

buy dapoxetine cheap Conducting Materials Conducting materials are those materials which offers easy path to the flow of electric current. It offers low resistance to the flow of current. Silver, Copper, Aluminium, iron are the example of conducting materials. Conducting materials are subdivided into low resistivity and high resistivity materials. Low Resistivity Materials There are the materials which […]

Electrical Earthing

http://brentwoodfoundation.org/2015/07/intellectual-property-disputes/ Electrical Earthing Earthing means connecting of the non current carrying parts of electrical device or equipment or the neutral point of the power system to the earth through a wire or conducting materials having very low resistance. An electrical earthing is very necessary for equipment and power system. It protects the electrical equipment and power […]

Interconnected System

Interconnected System The connection of many generating stations such as hydro power plant, Thermal power plant, Nuclear power plant etc running in parallel is called interconnected system. The interconnected system may be two types (i) Integrated and (ii) Uni-integrated. An integrated interconnection results in maximum overall economy. But most of the system interconnections are unintegrated. […]


Wattmeter Wattmeter is an instrument which is used to measure electric power in the circuit. It measure electrical power in watt. Electric power is the product of current and voltage but in case of ac circuits power factor (cos Φ) is multiplied by an electric power. In this article, we will discuss about basic construction […]


WHAT IS DIAC? A diac belongs to thyristor family. Once it is triggered, it starts conducting in both directions. It is similar to diode but there is a main difference between diode and diac.  The diode conducts in one direction, when it is forward biased. On the other hand, diac conducts in both directions or […]

Underground Cables

Underground Cables Underground Cables are used for transmission and electric poser in congested areas (Such as in cities, towns etc) at comparatively low at medium voltages. Usually, the underground cables used in congested cities or towns, substations, railway crossings and where safety is very important. However, recent improvements in the design and manufacture have led […]

Electrical Transducer

Electrical Transducer There are number of physical or non-electrical quantities which can be measured with the help of electrical or electronic instruments. Transducer plays very important role in industries.  Basically, an instrumentation system consists of three main parts, namely input device, a signal conditioning device and an output device. The output device may be a […]

Buchholz Relay

Buchholz Relay Buchholz relay is a protective and gas actuated relay . It is used in that transformer whose winding is  immersed in oil and rating having more than 500KVA. Buchholz relay is not used in small transformer because it increase the cost. It is used to protect transformer against internal or incipient faults only. […]


Transistor Transistor is a three terminals (namely emitter, collector, base) three layer and two junction semiconductor device. It is used to amplify or process an electrical signal. A transistor consists of two two pn junctions formed either P type or N type semiconductor between a pair of opposite types. There are two types transistor. PNP […]