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Generator rotor ventilation test wind bag

"Generator Field Winding Shorted Turns: Observed Conditions and

shooting generator operational problems and helps determine whether rotor rewinding is required. Because of the perceived value of on-line testing, most first time users soon embark on

基于旋转弱耦合与强耦合计算方法的大型汽轮发电机转子流体场与

Analysis of rotor ventilation structure and ventilation test of 700 MW westinghouse generator imported from the United States. electromechanical information [J]. Mechanical and...

Heat transfer coefficient distribution in inner surface of stator

The stator ventilation duct is the main path for fluid flowing to cool the stator bar and the core. Considering the complexity of the ventilation system, the investigation on the

Calculation of rotor ventilation and heat for turbo-generator

Abstract: The main objective of this paper is to elucidate the effect of rotor end structures of a large-scale air-cooled turbo-generator on the flow rate distribution and fluid flow

Detection of rotor winding shorted turns in turbine generators and

Rotor flux monitoring involves measuring the magnetic flux in the generator air-gap to determine if field winding shorts have occurred in the rotor poles. The radial magnetic flux is detected by

Research and Application of Turbo-generator Rotor Winding

Abstract: The measurement of DC resistance, AC impedance and distributed voltage of the rotor winding, as well as waveform methods such as differential coil method and repetitive surge

How To Test a Generator Rotor (Complete Guide)

Single-Phase Rotor Test. You can perform a single-phase rotor test to look for fractured rotor bars. You should only perform this test after disconnecting the generator from its power source. To do the single-phase

Roof ventilator for electricity generation system

Put the gear in the proportion 1:4 to the air ventilation ball axis and rotor axis of the electric generator to allow the movement of electric generator axis while the wind blows the ventilation

GE Generator Rotor Design, Operational Issues, and

The generator rotor represents an excellent combination of electrical, mechanical and manufacturing skills in which the field coils are well insulated, supported and ventilated in a compound structure rotating at very high speed (typically 1800

Detection of rotor winding shorted turns in turbine generators and

The only such direct test for shorted turns involves measuring the magnetic flux in the air gap. The original "air gap flux" test developed by GE over 30 years ago and now

GE Generator Rotor Design, Operational Issues, and Refurbishment

When can a flux probe test be performed on a generator rotor? A. The test can be performed under noload with the stator short-circuited or during operation at load. When the test is

GER4212 GE Generator Rotor Design Ops Issues Refubishment

This document discusses generator rotor design, operational issues, and refurbishment options. It describes the function of generator rotors in producing an electromagnetic field for electricity

Detection of rotor winding shorted turns in turbine generators

Users instead prefer an on-line test where the rotational and thermal stresses are normal. The only such direct test for shorted turns involves measuring the magnetic flux in the air gap. The

Full Surface Heat Transfer Characteristics of Stator Ventilation Duct

In the design and calculation of a 330 MW water-water-air cooling turbo-generator, it was found that the flow direction of the fluid in the local stator radial ventilation

Full surface heat transfer characteristics of rotor ventilation duct

With regard to this, it takes an 1100 MW turbine-generator with axial ventilation system, as a test generator, global fluid network equation is carried out to calculate the

Generator rotor ventilation test wind bag [PDF]

6 FAQs about [Generator rotor ventilation test wind bag]

How to diagnose generator rotor winding turn to turn insulation conditions?

Abstract: The measurement of DC resistance, AC impedance and distributed voltage of the rotor winding, as well as waveform methods such as differential coil method and repetitive surge oscilloscope method (RSO), are employed in diagnosing the generator rotor winding turn to turn insulation conditions.

Do Ge rotor windings have air gap search coils?

Fortunately, GE designs, manufactures and installs a range of air gap search coils—suitable for most generator types— that support online rotor winding condition monitoring and analysis. Shorted turns are the result of failed insulation between individual windings in a generator’s rotor.

Should you test rotor windings on-line?

In the past two decades, the use of on-line testing of generator rotor windings has surged. The benefit of on-line testing has been recognized throughout the power generation industry and the installation of air-gap flux probe monitoring equipment has become almost standard procedure for utilities and OEM’s.

Does rotor winding technology improve the reliability of a generator?

Therefore, it is proved that such technology is effective in detecting generator rotor winding conditions and significant in enhancing the generator-operating reliability, thus deserving a broad promotion and application within the industry. References is not available for this document.

How effective is rotor winding detection technology?

What is a RSO test on a generator rotor?

The RSO test is a specialist test on a generator rotor winding to detect inter-turn faults within the winding. It works on time domain reflectometry. Pulses are injected alternately from the two ends of the windings and the reflected waveforms across impedances connected to the windings are compared.

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