Page 620 - Industrial Power Engineering and Applications Handbook

Voltage surges-causes, effects and remedies 17/585
Per unit voltage 8 Gibbs, J.D., Koch. D., Malkin, P. andComick, K.J.. ‘Comparison
of performance of switching technologies on a Cigre motor
v, simulation circuit’. /€€E Trunsac.tk~nr oil Powc,t- De/iwr~. 4.
I p.u. = \ 2 - ( 17.5) No. 3, July (1989).
~
13 9 Golde, R.H.. ‘Lightning surges on overhead distribution lines
caused by direct and indirect lightning strike\‘. AZEE
Current zero Trunsucfions (Power Appurutus rrnrl SysfeniJ. 437-147. June
(1959); IEC 56- HV AC Circuit Breaken.
This is defined by i = 0, where 10 Greenwood. A.. E/ectriccr/-7i-rrrzsi~nr~ I-’{JW~ Swrem, John
rn
Wiley, New York.
i = I,,,,, sin w f ( 17.6) I I Insulation Sub-committee, Rotating Machinery Committee.
i = instantaneous current component at any instant ‘Impulse voltage strength of AC rotating machine\’, IEEE
mid
I,,,;,, = peak value of the current Tronsucfion.c on Po,i,~,.rApp~ir~r~iis S\.S/PI?I.T. PAS-100, No.
w = angular velocity = 2 ttf 8, August (1981).
r = time 12 Working Group 13.02 of Study Committee 13 (Switching
Equipment). ’Interruption of small inductive current\‘. Elwrrtr,
No. 7.5, March f 198 I 1.
Further reading 13 Lyle. A.G., Mujot- Fuulrr on Poiier Sv.strrnr. Chapman and
Hall. London (1952).
14 Nailen. R.L., ’Transient surges and motor protection’ /EEL
Adjayc, R.E. and Cornick, K.J.. ‘Distribution of switching Trunsuc-fions on Zndusf:A/~p/plic.ririon.r. 1A No. 6. 15. November/
\urges in the line - end coils of cable connected motors’, IEE December (1 970)
7runsrrcfioti.s. E/ec.fric PoMw Applicurions, 2 No. I, 1 1-2 1 15 Okokura. K.Y.. ’Multiple rehking \oltape effect in a vacuum
( 1979). circuit breaker on motor insulation‘. IEEE Paper 80. SM 6Y7-
Andra. W. and Sperling. P.G., ‘Winding insulation 5tressing 3 (1980).
during the switching of electrical machines’, Sienrens Review 16 Pretorius, R.E. and Eriksson. A.J.. ‘Field studie\ of switching
43, No. 8, 345-350 (1976). surge generation in high voltage vacuum contactor controlled
Beeman. D. (ed.). Indu.\tria[ Power System.\ Hundhook. motors’, ZEEE Conference Puhlic.trriori 2 10. 54-64 ( 1982).
McGraw-Hill. New York. 17 ‘Protection of motor from switching surge’. lEEE TMJI wdon,
Central Board of Irrigation and Power, ‘Re-switching transients PAS-93, No. 5, 1474 (1974).
and their effects on the design and operation of large induction 18 ‘Results of an investigation on the overvoltages due to a ~acuuni
motor drive\ for power station auxiliaries‘, New Delhi, India. circuit breaker when switching an H.V. motor‘. IEEE 8.7 SM
March (1995). 370-2 (1985).
Cigre Working Group 13.02. ‘Proposal ofa teat circuit to simulate 19 Slamecka, M.E.. ‘For surge impedance of motors: interruption
\witching of small inductive currents in high voltage motor of small inductive currents’. Cigre Working Group 13.02,
circuits’. Lkctm. No. 75. March (1981). Electru, No. 72. 73-103, October (19x0).
Cormick. K.S. and Thompson, T.R., ’Steep fronted switching 20 Slamecka, M.E., ‘Interruption of \mall inductive currents’
voltage transients and their distribution in motor windings’. Working Group 13.02 of Study Coininittee 13 (Swltchinp
Part I - System measurements of steep fronted switching voltage Equipment). €lec,tru, No. 95 (1983).
transient<. Part I1 - Distribution of steep fronted switching 21 ‘Switching over voltages phenomena in MV switchgears’.
voltage transients in motor windings. ZEEE Proceedings 129, Workshop on MV Switchgear and CPRI, 143. ( 1987).
Parts A and B, No. 2. March (1982). 22 Wright, M.T.. Yang, S.J. and McLeap. K., ’The intluencc of
Ganz, A. and Jakob. R., ‘Switching high voltage motors with coil and surge parameters on transient interturn voltage
SF, self-extinguishing circuit breakers‘, Brown Boveri Revieu: distribution in stator windings‘. Z€E Prric.erding.r. 130, Part B.
7 10-7 11. November ( 1979). No. 4. 257-264. July (19x3).