The ramp test - Its origins, development and application

IEEE Transactions on Dielectrics and Electrical Insulation

Volumn 17, Issue 5, 2010, Pages 1470-1478

  McDermid, W ^a   Bromley, J ^a  

^a MANITOBA HYDRO   (Canada)

Author keywords

high direct voltage; ramp test; Rotating machine insulation

Indexed keywords

DIRECT VOLTAGES; GROUNDWALL INSULATION; RAMP FUNCTION; RAMP TESTS; ROTATING MACHINE; ROTATING MACHINE INSULATION; STATOR WINDING; VOLTAGE SUPPLY; VOLTAGE TESTS;

ROTATING MACHINERY;

ROTATION;

EID: 77957941422     PISSN: 10709878     EISSN: None     Source Type: Journal    
DOI: 10.1109/TDEI.2010.5595548     Document Type: Article

References (19)

1. A. W. W. Cameron, "Diagnoses of ac generator insulation condition by non-destructive tests", AIEE Trans. Power A pp. Syst., Vol. 71, pp. 263-269, 1952.
2. G. L. Hill, "Testing electrical insulation of rotating machinery with high voltage direct current", AIEE Trans. Power A pp. Syst., Vol. 72, pp. 159-170, 1953.
3. F. R. Schleif, "Corrections for dielectric absorption in high voltage dc insulation tests", AIEE Trans. Power A pp. Syst., Vol. 75, pp. 513-517, 1956.
4. J. S. Johnson and A. W. Zwiener, "DC testing experience on rotating machine insulation", AIEE Trans. Power A pp. Syst., Vol. 76, pp. 416-420, 1957.
5. B. L. McHenry, "Generator insulation testing by continuous time-function application of direct voltage", IEEE Trans. Power A pp. Syst., Vol. 86, pp. 1329-1333, 1967.
6. W. McDermid, "Investigation of groundwall defects in polyester-mica", Minutes of the Fiftieth Annual International Conference of Doble Clients, Sec. 7-301, 1983.
7. W. McDermid and B. G. Solomon, "Significance of defects found during high direct-voltage ramp tests", IEEE Electr. Insul. Conf. and Electr. Manufacturing & Coil Winding Conf., pp. 631-636, 1999.
8. L. Rux and S. Grzybowski, "Evaluation of delaminated high-voltage rotating machine stator winding groundwall insulation", IEEE Intern. Sympos. Electr. Insul., pp. 520-523, 2000.
9. IEEE Std 43-2000, "IEEE Recommended practice for testing insulation resistance of rotating machinery
10. IEEE Std 1434-2000, "IEEE Guide to the measurement of partial discharges in rotating machinery".
11. W. McDermid and J. C. Bromley, "Response of ramp test to delamination in stator groundwall insulation", IEEE Electr. Insul. Conf. and Electr. Manufacturing & Coil Winding Conf., pp. 327-329, 2001. (Pubitemid 33120405)
12. L. Rux and W. McDermid, "Assessing the condition of hydrogenerator stator winding insulation using the ramped high direct-voltage test method", IEEE Electr. Insul. Mag., Vol. 17, No. 6, pp. 27-33, 2001. (Pubitemid 34051166)
13. IEEE Std 95-2002, "IEEE Recommended practice for insulation testing of ac electric machinery (2300 V and above) with high direct voltage".
14. H. G. Sedding, B. K. Gupta, W. M. McDermid, J. C. Bromley, R. Schwabe, D. Levin, and J. Stein, "High voltage dc ramp testing as a diagnostic of stator insulation condition", IEEE Intern. Sympos. Electr. Insul., pp. 430-433, 2004. (Pubitemid 40339295)
15. W. McDermid and J. C. Bromley, "Ramp test development and data acquisition", IEEE Electr. Insul. Conf. and Electrical Manufacturing & Coil Winding Conf., pp. 126-130, 2005 (Pubitemid 46090929)
16. E. David, A. Nair, T. Godin and J. Bellemare, "Modeling of a generator I-V curve from the ramped direct voltage method", IEEE Intern. Sympos. Electr. Insul., pp. 10-13, 2006. (Pubitemid 46823206)
17. W. McDermid and R. Gamblin, "Use of ramp test to expedite return to service of damaged stator winding", IEEE Electr. Insul. Conf. and Electr. Manufacturing Expo, pp. 16-19, 2007.
18. th Annual International Doble Client Conf., 2009.
19. L. Lamarre, E. David and A. Nair, "Comparison of DC ramp and DC step test results on hydro generator stators, IEEE Electr. Insul. Conf., pp. 468-472, 2009.