Electrical apparatus testing
HV/MV testing and diagnostics to NETA, IEEE and CSA, through to a defensible test report.
Core service
Apparatus is only reliable if it is tested to recognized practice. FORWA performs HV and MV apparatus testing and diagnostics: circuit breakers (including SF6), disconnect switches, power transformers, instrument transformers (CT/VT), busbars, cables and grounding, in accordance with NETA, IEEE and CSA.
The test fleet covers the standard methods: insulation resistance (Megger), dielectric withstand (AC/DC Hi-Pot and VLF), power factor and capacitance (Doble, tan delta), sweep frequency response analysis (SFRA), turns ratio (TTR), CT/VT saturation, polarity and burden tests, contact resistance, breaker timing, and SF6 gas analysis (dew point and purity).
Each campaign ends with a clear, defensible test report.
References: Matabitchuan 44/72 kV switchyard (Peter Kiewit Sons / OPG), Arnprior 230 kV coupling-capacitor voltage transformers (Ramco EMI / OPG, Megger DELTA4300), Chenaux MV systems (Champlain EPC / OPG), Stella wharf apparatus (Ramco EMI).
What we offer
- SF6 breakers, disconnects and transformer testing
- Insulation resistance, AC/DC Hi-Pot and VLF
- Power factor / tan delta (Doble)
- SFRA, TTR, CT/VT saturation and polarity
- Contact resistance and breaker timing
- SF6 gas analysis (dew point and purity)
- Reports aligned with NETA, IEEE, CSA
Benefits
- Reliable diagnosis before commissioning
- Full campaign traceability
- Compliance with acceptance and maintenance standards
- Lower risk of early failure
Applications
- Transmission and distribution substations
- Generating station switchgear
- HV instrument transformers
- MV cables and grounding
- Factory acceptance testing (FAT)
Related projects
Projects delivered with this service
A sample of projects where we applied this expertise.
Chenaux medium voltage systems testing and commissioning
Two coordinated phases on 2.4 kV systems for Champlain EPC / OPG.
Factory testing of medium voltage switches (SEVP)
FAT of MV switches (Metalec, Metafab, ABB, S&C) before shipment.
Ontario ferry electrification: shore charging stations
Electrical and shore-network scope across four terminals: apparatus, protection and control, SCADA and reforming.
Matabitchuan 44 kV switchyard commissioning tests
Complete test program on SF6 72 kV breaker and CTs for Peter Kiewit Sons / OPG.
Arnprior 230 kV CVT commissioning
230 kV CVT testing to a dedicated ITP for Ramco EMI / OPG (Megger DELTA4300).
Calabogie: safe commissioning of a generating-station redevelopment
From HV switching through to digital protection testing, for SNC-Sullivan / OPG.
Need this service on your site?
Describe the installation, the outage window and the Electrical apparatus testing scope.