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IEEE DRAFT 1434 : D10 99
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DRAFT GUIDE TO THE MEASUREMENT OF PARTIAL DISCHARGES IN ROTATING MACHINERY
23-07-2013
12-01-2013
1 Overview
1.1 Scope
1.2 Purpose
1.3 Limitations
2 References
3 Definitions
4 The nature of partial discharge in machine windings
4.1 Sources of partial discharge
4.2 Forms of partial dicscharge pulses
4.3 Glow and pseudoglow discharges
4.4 Peak amplitude variation of discharge pulses
5 Overview of partial discharge detection methods
5.1 Electrical pulse sensing
5.2 RF radiation sensing
5.3 Power-factor tip-up
5.4 Energy/integrated charge transfer
5.5 Ozone detection
5.6 Accoustic and ultrasonic detection
5.7 Black-out test
6 Electrical pulse and RF radiation sensing systems
6.1 Coupling capacitors
6.2 RF current transformers
6.3 Near field antennae
6.4 Machine frame and other ground circuit sensors
7 Electrical pulse and RIV measuring instruments
7.1 Oscilloscopes
7.2 Spectrum analyzers
7.3 Integrating current detectors
7.4 Quasi-peak pulse meters and RIV meters
7.5 Pulse height analyzers
7.6 Pulse phase analyzers
8 Pulse propagation in windings and calibration issues
8.1 Pulse propagation
8.2 Calibration into apparent charge
9 On-line versus off-line testing
9.1 On-line testing
9.2 Off-line testing
9.3 Quality control testing of individual stator
coils/bars or windings
10 Test procedures
10.1 On-line test procedures
10.2 Off-line test procedures for complete windings
10.3 Procedures for pulse-type PD tests on
individual coils and bars
11 Interpretation of PD test results
11.1 Magnitude and polarity of maximum PD pulse
11.2 Electromagnetic probe readings
11.3 Frequency spectrum analysis
11.4 Integrated quantities
11.5 Changes in PD magnitude
11.6 Pulse height and pulse phase analysis
11.7 Difficulties in objective interpretation
of PD data
Table I On-line partial discharge measurements
(Typical systems)
Table II Off-line partial discharge measurements
Table III PD measurements on individual coils and bars
Annex A (Informative) Bibliography
A.1 Nature of PD in machine windings
A.2 Pulse propagation in windings and
calibration issues
A.3 Sensors
A.3.1 Coupling capacitors
A.3.2 RF current transformers
A.3.3 Electromagnetic probe
A.3.4 Rotor mounted scanner PD sensor
A.3.5 Stator slot couplers
A.3.6 RTDs as PD sensors
A.3.7 Frame sensors
A.3.8 Ozone
A.3.9 Acoustic and ultrasonic
A.4 Electrical pulse and RIV measuring instruments
A.4.1 Integrating current detectors
A.4.2 Pulse height analyzers
A.4.3 Pulse phase analyzers
A.4.4 Quasi-peak pulse meters and RIV meters
A.5 On-line test methods and data analysis
A.5.1 Pulse height and pulse phase analysis
- periodic
A.5.2 Pulse height and pulse phase analysis
- continuous
A.5.3 EMI/RFI analysis
A.5.4 Partial discharge location
A.6 Off-line test methods and data analysis
A.6.1 Power-factor tip-up
A.6.2 Energy/integrated charge transfer
A.6.3 Integrating current detectors
A.6.4 Quadratic rate
A.6.5 0.1 Hz measurements
A.6.6 Pulse height pulse phase analysis
A.6.7 Initiation of PD by voltage surges
A.6.8 Electromagnetic probe
A.7 Quality control tests on individual stator
coils and bars
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