Silicon rubber vermin guards were added to seal the top part of the bushing assembly against vermin ingress.
Resource Category: TechTalks
Alignment of Breaker Shutters
Electrical discharges (ED) in MV power circuits are (1) Partial Discharges (PD) and (2) Partial Arcing (PA).
MV Oil Circuit Breaker Contacts
One of the major sources of problems with circuit breakers is that caused by the deterioration of the main switching electrical contacts. The contacts in switchgear are required to provide two main functions that are mutually incompatible.
Medium Voltage Switchgear Oil Breakers
Medium voltage circuit breakers have, over recent years, seen very significant developments in both their operating function and also in the monitoring aspects of their condition.
Electrical Discharges in MV Switchgear
Electrical discharges (ED) in MV switchgear circuits are (1) Partial Discharges (PD) and (2) Partial Arcing (PA). The breakdown does not bridge the electrodes. i.e. Voids, cracks, contamination etc.
Introduction | Advanced Switchgear Partial Discharge Technology
On-line condition assessment method | Component in operation at system voltage and operating temperature under mechanical and electrical stresses.
Online Medium Voltage Switchgear
This TechTalk serves as an inspection and routine testing guide for switchgear, switchboard assemblies, and their associated components. It supports a predictive maintenance strategy.
Medium Voltage Motor Inspection and Online Assessment
This TechTalk serves as an inspection and routine testing guide for AC motors in support of a predictive maintenance strategy.
Introduction | MV Motors Partial Discharges
Surface partial discharges (PD) in stator windings rated 6 kV and above causes bright white deposits on the stator coils, and is usually caused by poorly-made or poorly-applied partly conductive and silicon carbide coatings
Introduction | Medium Voltage Feeder Cables
The condition and life expectancy of medium voltage cable networks are being confronted frequently with the question “How much longer will the cable remain functional?”