Gas Turbine Generator Protection

A downstream turbine on the same shaft as the compressor.

Gas turbine generator protection. A generator is subjected to electrical stresses imposed on the insulation of the machine mechanical forces acting on the various parts of the machine and temperature rise. Generator gear box gas turbine 1. Hydraulic turbine 0 2 to 2. A gas turbine also called a combustion turbine is a type of continuous and internal combustion engine the main elements common to all gas turbine engines are.

Summary gasturbine generator sets in particu lar with aeroderivative gas turbines are sensitive to electrical fault events that can damage the gasturbine. Gas turbine 50. 4 cylindrical rotor seen in recips gts and sts salient pole rotor seen in hydros more poles to obtain nominal frequency at low rpm. Gas turbine fire protection by dominique dieken p e cfps hsb professional loss control.

It is also an appropriate method to apply to variable speed synchronous machines. The air filter is attached at the inlet of the compressor where air gets. With a torque limiting coupling is in many cases not possible because of the overspeeding of the turbine after the release of. Learn more sel 700g generator protection relay.

A fourth component is often used to increase efficiency on turboprops and turbofans to convert power into mechanical or. This form of protection can provide earth fault protection when the generator is at standstill prior to run up. To elaborate on this information and demonstrate how truly difficult it is to detect. Gas turbines gts cgts 4.

These are the main factors which make protection necessary for the generator or alternator even when properly used a machine in its perfect running condition does not only maintain its specified rated performance for many. A mechanical protection i e. The sel 400g offers primary and backup protection for generators of all sizes and types including hydro pumped storage hydro steam turbine and combustion gas turbine generators. Such machines may be employed for variable speed motoring in pumped storage generation schemes or for starting a large gas turbine prime mover.

The main components of a gas turbine power plant are the compressor regenerator combustion chamber gas turbine alternator and starting motor. According to a study conducted by the edison electric institute 64 combustion turbine fires. Steam turbines sts 1 2 4 3 generator protection 5 applying field static exciter dc is induced in the rotor ac is induced in the stator 6. Compressorair compressor used in a gas turbine power plant is mainly of the rotary type.

Protection against generator motoring is designed to protect the prime mover as opposed to the generator.