Open AccessCross‐bonding cable and box model based on pulse reflection measurement
Author(s) -
Regt Jos J.,
Hoogendorp Gerben,
Wagenaars Paul,
Wouters Peter A.A.F.,
Popov Marjan,
Sluis Lou,
Steennis E. Fred
Publication year - 2015
Publication title -
iet science, measurement and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.418
H-Index - 49
eISSN - 1751-8830
pISSN - 1751-8822
DOI - 10.1049/iet-smt.2014.0095
Subject(s) - impulse (physics) , overvoltage , wire bonding , transmission line , voltage , electrical engineering , conductor , electric power transmission , overhead line , power cable , surge arrester , engineering , impulse generator , waveform , signal (programming language) , acoustics , materials science , computer science , physics , chip , layer (electronics) , quantum mechanics , composite material , programming language
Transients from lightning strikes can enter underground cables at overhead line to power cable transitions. Possible overvoltages on these surges at cross‐bonding connections of the cable screens are of major concern. A model is developed for modelling overvoltages from transient signal propagation through a combined cross‐bonding cable and box. This model is applied to the first Dutch 400 kV cable connection. Such model incorporates model parameters whose values depend on design details of the cross‐bonding box. The values for these model parameters are extracted from the measured transmission and reflection signal on steep pulses injected into the actual cross‐bonding box configuration. The model combines transmission line description for the cross‐bonding cables with mainly inductive behaviour of the cross‐bonding box. The obtained results are verified by measurements. The model is applied to investigate overvoltages induced at the cross‐bonding cable and box on 1.2/50 µs impulse voltage injection representing a lightning impulse voltage applied to the core conductor of the cross‐bonding cable. Furthermore, the effectiveness of surge arresters to reduce overvoltages at the cross‐bonding cable screen is demonstrated by simulations with this model in PSCAD.