An effective testing, inspection and maintenance programme is therefore essential for a well-functioning high voltage system. This will result in minimal operation failures and give asset managers and decision makers accurate information on how to prioritize operating system investment.
State-of-the-art analysis and measurement capability including cable system, power quality, EMC, transformer, motor and generator assessment, at your location;
Expert knowledge and operational experience in the field;
A wide range of material analyses, including transformer oil analysis, carried out at our Linkebeek laboratories, as well as ground analysis and heat dissipation calculations arising from root cause analysis (RCA).
PREDICTIVE MAINTENANCE CAPABILITY
ENGIE Laborelec has a broad range of state-of-the-art measurement expertise capable of assessing all high voltage systems:
Measurement of partial discharge activity, localization, trending, and interpretation through signal analysis;
HV system component monitoring, (continuous or ad hoc), including:
Cable systems (cables, joints and terminations), underground cables and overhead lines up to 250 kV;
Switchgear, open and closed cells, air or gas insulated switchgear (AIS and GIS) installations;
Current and voltage transformers (VT and CT),
connections and bushings;
Motors and generators.
PREDICTIVE MAINTENANCE TECHNIQUES
Online (in service) predictive maintenance services
For HV system component monitoring (continuous or ad hoc), measurement and analysis of partial discharge (PD), localization, trending and interpretation using multiple techniques.
Acoustic emission (AE):
Airborne – ultrasonic parabolic microphone detection at 40 kHz CF
Contact probe for examination of closed cells
Transient earth voltage (TEV) 100 kHz – 80 MHz
Ultra high frequency (UHF) 150 MHz – 1000 MHz
Radio or high frequency current transformers (RFCT and HFCT)
Ultra-violet (UV) cameras:
Corona detection, discharge to air
Tracking (surface discharge) at bushings and insulators
Oil analysis for ageing and moisture ingress
Infra-red (IR) cameras for heat detection
STRATEGY FOR PREDICTIVE MAINTENANCE
All high voltage equipment is covered: cables, motors, generators, switchgear and transformers.
Predictive maintenance of high voltage equipment through condition measurement
Predictive maintenance of high voltage equipment is essential for safe and reliable operation