Notebook

Once inside your box you should turn off the breaker being changed,There will be a black wire coming off the breaker - you need to loosen the screw and remove this wire. The wire goes to the circuit branch in your house that is controlled by the breaker. Set this wire end aside - it is not live but don't let it contact...

According different criteria there are different types of circuit breaker. According to their arc quenching media the circuit breaker can be divided as- Oil circuit breaker. Oil circuit breaker Air circuit breaker. 3. SF6 circuit breaker. 4. Vacuum circuit breaker. According to their services...

Electrical Fuse Circuit breaker • The fuse is a device working on the electrical and thermal properties of the conducting material, while a circuit breaker is a device working on the electromechanical principles. • Once used a fuse has to be replaced but the circuit breaker can be reused after correction...

 Here I am  telling about the difference between isolation switch as compared to a circuit breaker. An isolating  switch is a switching device that may not be able to break a normal load current or a short circuit current.  Usually an isolation switch is used on the supply side of a circuit breaker...

What is power factor? Power factor = cosine of the angle between voltage and current= cosθ . This is the instant answer from all. The other definitions are , cosθ= ratio of active power to apparent power or it is the ratio of Resistance to the impedance in the circuit.    These all are definitions and expressions...

Power cables are mainly used for power transmission & distribution purpose. It is an assembly of one or more individually insulated electrical conductors, usually held together with an overall sheath. Electrical power cables may be installed as permanent wiring within buildings, buried in the ground and run overhead...

Transmission line parts 1. Insulator. 2. Bundle of two conductors (some lines have 4). 3.Spacer to hold the two conductors apart. 4. Earth wire at top of tower or pylon. 5. The three bundles on one side of the tower make up one electrical circuit. Most lines have two circuits, one each side. 6.Identity...

Grounding is the commonly word used for earthing in the North American standards like IEEE, NEC, ANSI and UL etc while, Earthing is used in European, Common wealth countries and Britain standards like IS and IEC etc. Ground is a source for unwanted currents and also as a return path for main current. While earthing...

How to make earth pit. 1. Excavation on earth for a normal earth Pit size is 1.5M X 1.5M X 3.0 M  2. Use 500 mm X 500 mm X 10 mm GI Plate (Plate may be use as big as possible to contact more and more area of Earth for low resistance & best result)  3. Make a mixture of Wood Coal Powder Salt &...

Here, I am going to discuss about how to make an extension box , containing 3 switchess and three plug sockets. The circuit lay out is as shown below. Wiring diagram of extension box Main requirements Switch Board Switch board is a board made up of either wood or plastic (PVC) and is meant for mounting switches...