Prognostic and Diagnostic Technology for DC Actuated Contactors and Motor Starters
Summary :
Unpredicted contactor failure can interrupt production and affect the uptime and throughput of manufacturing. Usually the life of a contactor is based on the manufacturers' life test data. However, due to the way of how the contactor is operated and the environment it is operated in, the working life of a contactor can vary significantly. In this paper, a novel technology has been investigated to predict potential failures of DC actuated contactors by monitoring their DC coil current and contactor currents. Three parameters are derived from this set of data to monitor the health of contactors: contact over-travel, armature pull-in time and coil current differential. Contact over-travel provides information on the remaining life of contacts and coil current differential provides indication of contact weld and carrier jam due to debris. The armature pull-in time provides information on contactor closing speed. Prototype contactors have been built and AC4 tests have been carried out for evaluation. Test results show that the contact over-travel parameter agrees well with contact mass loss data taken after contactors failed. The derived armature pull-in time agrees well with that measured by a laser displacement sensor. The defined parameters provide effective monitoring and prediction of potential contactor failures.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E92-C No.8 pp.1045-1051
- Publication Date
- 2009/08/01
- Publicized
- Online ISSN
- 1745-1353
- DOI
- 10.1587/transele.E92.C.1045
- Type of Manuscript
- Special Section PAPER (Special Section on Recent Development of Electro-Mechanical Devices (IS-EMD2008))
- Category
- Contactors
Authors
Keyword
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Xin ZHOU, Lian ZOU, Roger BRIGGS, "Prognostic and Diagnostic Technology for DC Actuated Contactors and Motor Starters" in IEICE TRANSACTIONS on Electronics,
vol. E92-C, no. 8, pp. 1045-1051, August 2009, doi: 10.1587/transele.E92.C.1045.
Abstract: Unpredicted contactor failure can interrupt production and affect the uptime and throughput of manufacturing. Usually the life of a contactor is based on the manufacturers' life test data. However, due to the way of how the contactor is operated and the environment it is operated in, the working life of a contactor can vary significantly. In this paper, a novel technology has been investigated to predict potential failures of DC actuated contactors by monitoring their DC coil current and contactor currents. Three parameters are derived from this set of data to monitor the health of contactors: contact over-travel, armature pull-in time and coil current differential. Contact over-travel provides information on the remaining life of contacts and coil current differential provides indication of contact weld and carrier jam due to debris. The armature pull-in time provides information on contactor closing speed. Prototype contactors have been built and AC4 tests have been carried out for evaluation. Test results show that the contact over-travel parameter agrees well with contact mass loss data taken after contactors failed. The derived armature pull-in time agrees well with that measured by a laser displacement sensor. The defined parameters provide effective monitoring and prediction of potential contactor failures.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E92.C.1045/_p
Copy
@ARTICLE{e92-c_8_1045,
author={Xin ZHOU, Lian ZOU, Roger BRIGGS, },
journal={IEICE TRANSACTIONS on Electronics},
title={Prognostic and Diagnostic Technology for DC Actuated Contactors and Motor Starters},
year={2009},
volume={E92-C},
number={8},
pages={1045-1051},
abstract={Unpredicted contactor failure can interrupt production and affect the uptime and throughput of manufacturing. Usually the life of a contactor is based on the manufacturers' life test data. However, due to the way of how the contactor is operated and the environment it is operated in, the working life of a contactor can vary significantly. In this paper, a novel technology has been investigated to predict potential failures of DC actuated contactors by monitoring their DC coil current and contactor currents. Three parameters are derived from this set of data to monitor the health of contactors: contact over-travel, armature pull-in time and coil current differential. Contact over-travel provides information on the remaining life of contacts and coil current differential provides indication of contact weld and carrier jam due to debris. The armature pull-in time provides information on contactor closing speed. Prototype contactors have been built and AC4 tests have been carried out for evaluation. Test results show that the contact over-travel parameter agrees well with contact mass loss data taken after contactors failed. The derived armature pull-in time agrees well with that measured by a laser displacement sensor. The defined parameters provide effective monitoring and prediction of potential contactor failures.},
keywords={},
doi={10.1587/transele.E92.C.1045},
ISSN={1745-1353},
month={August},}
Copy
TY - JOUR
TI - Prognostic and Diagnostic Technology for DC Actuated Contactors and Motor Starters
T2 - IEICE TRANSACTIONS on Electronics
SP - 1045
EP - 1051
AU - Xin ZHOU
AU - Lian ZOU
AU - Roger BRIGGS
PY - 2009
DO - 10.1587/transele.E92.C.1045
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E92-C
IS - 8
JA - IEICE TRANSACTIONS on Electronics
Y1 - August 2009
AB - Unpredicted contactor failure can interrupt production and affect the uptime and throughput of manufacturing. Usually the life of a contactor is based on the manufacturers' life test data. However, due to the way of how the contactor is operated and the environment it is operated in, the working life of a contactor can vary significantly. In this paper, a novel technology has been investigated to predict potential failures of DC actuated contactors by monitoring their DC coil current and contactor currents. Three parameters are derived from this set of data to monitor the health of contactors: contact over-travel, armature pull-in time and coil current differential. Contact over-travel provides information on the remaining life of contacts and coil current differential provides indication of contact weld and carrier jam due to debris. The armature pull-in time provides information on contactor closing speed. Prototype contactors have been built and AC4 tests have been carried out for evaluation. Test results show that the contact over-travel parameter agrees well with contact mass loss data taken after contactors failed. The derived armature pull-in time agrees well with that measured by a laser displacement sensor. The defined parameters provide effective monitoring and prediction of potential contactor failures.
ER -
English
