In long shunt the shunt field winding is in parallel to both generator and series field. In short shunt the shunt field is in parallel to generator only.
Because millman's is used in parallel ckt of impedances and voltage sources
This is avoided by grounding the motor frame. Both methods effectively produce a solid electrical connection straight to the stator laminations, allowing any insulation failure to be grounded via the end-ground user's conductor. Earthing is a technique in preventing electric shocks. To start, virtually all electric motors require grounding. The neutral earthing is given in the generator, transformer, motor, and other electrical devices by connecting the non-current carrying section to the neutral earthing.
An earthing boss and earthing lug are parts of a grounding connection. An earthing boss is in a casting that allows for the drilling and tapping of hole. A earthing lug is used to bond a wire to the ground.
here is no major difference between earthing and Grounding, both means "Connecting an electrical circuit or device to the Earth". This serves various purposes like to drain away unwanted currents, to provide a reference voltage for circuits needing one, to lead lightning away from delicate equipment. Even though there is a micro difference between grounding & earthing.Earthing and Grounding both is refer to zero potential but the system connected to zero potential is differ than Equipment connected to zero potential .If a neutral point of a generator or transformer is connected to zero potential then it is known as grounding. At the same time if the body of the transformer or generator is connected to zero potential then it is known as earthing.
In long shunt the shunt field winding is in parallel to both generator and series field. In short shunt the shunt field is in parallel to generator only.
A thick earthing wire, or a wide, flat conductor, is preferred, because it's more important to minimize henrys (inductance) in the earthing system than to reduce ohms (resistance). For the same reason, corners and small angles in an earthing conductor should be avoided, and the conductor should approach any connections from a parallel direction.
Chemical Earthing and Conventional Earthing are different types of earthing techniques. Conventional Earthing is based on plate earthing and pipe type earthing but Chemical Earthing on GI or Copper.
When two generators are to be run in parallel, one generator is first started and some load is given. Then second generator is brought in parallel with the running generator (subject few conditions, like voltage, frequency, phase angle). First generator which is running is known as running generator, the second generator which gets connected is known as incoming generator
Electrical earthing is classified into many types as Neutral earthing Body earthing Pipe earthing Plate earthing Chemical earthing Ground Compound Earthing
In a grid system all the alternators run in parallel, locked together in frequency.
Because millman's is used in parallel ckt of impedances and voltage sources
This is avoided by grounding the motor frame. Both methods effectively produce a solid electrical connection straight to the stator laminations, allowing any insulation failure to be grounded via the end-ground user's conductor. Earthing is a technique in preventing electric shocks. To start, virtually all electric motors require grounding. The neutral earthing is given in the generator, transformer, motor, and other electrical devices by connecting the non-current carrying section to the neutral earthing.
Earthing?
An earthing boss and earthing lug are parts of a grounding connection. An earthing boss is in a casting that allows for the drilling and tapping of hole. A earthing lug is used to bond a wire to the ground.
System Earthing is the earthing associated with current carrying conductor & is essential for the security of the system. Equipment Earthing is the earthing associated with non-current carrying metal work & is essential for the security of human life and property.
only earthing can not be measure. Anyone can only measures the voltage and the current with respect to the earthing .Thus it is impossible to measure the earthing.