Protection, Monitoring & Diagnostics
Standards: IEC 60076-7, IEC 60599 (DGA)
Buchholz, pressure and temperature protection, DGA and partial-discharge monitoring, OLTC and cooling control.
Buchholz Relay
Gas- and surge-actuated relay between tank and conservator.
Pressure Relief Device (PRD)
Spring-loaded valve venting sudden tank overpressure.
Oil & Winding Temperature Indicators (OTI/WTI)
Dial thermometers with alarm/trip contacts.
Oil Level Indicators
Magnetic float gauges for conservator and OLTC compartments.
Sudden Pressure / Rapid Rise Relays
Detects fast internal pressure events.
Online DGA Monitors
Continuous dissolved-gas analysis for fleet-critical units.
Fibre-Optic Winding Sensors
Direct hot-spot measurement in windings.
Marshalling Boxes
Terminal cabinets collecting all monitoring wiring.
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