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Monitoring and diagnostics of high-voltage transformers

Our diagnostic systems and device which our firm has developed, show, how much seriously we concern monitoring and diagnostics of a technical condition of transtormers-integrating elements of distribution system of electric energy

Device	Monitored subsystems							Design features and algorithms of the monitoring system. Application field
Device	HV Bushings	PD in insulation	OLTC	Cooling system	Tank vibration	Acoustic location	Current, Voltage
TDM								Modular system that implements a complete set of diagnostic functions Used to monitor the most expensive and important transformers
TDM-M								The simplest monitoring system that allows you to control the main parameters Used to monitor the 110 kV transformers
KIV-500/110								The diagnostic monitoring system the technical condition of power transformer bushings, protection relay
UP-500								Set of 3 sensors for mounting on the test taps of HV bushings It is used for periodic on-line measurements on transformers 110 kV

Summary table of monitored parameters for power transformers with operating voltage of 6÷35 kV monitoring systems

System Type	Transformer type and voltage	Monitored Parameters
System Type	Transformer type and voltage	Load current	Transformer temperature	Moisture in oil content	Moisture in solid insulation	Oli level	Discharge activity	Ambient temperature and humidity	Pressure in the tank	Vibration	Cooling
TDM-10	Oil-filled transformers of up to 15 kV	-	1	1	-	1	1	-	1⁽¹⁾	1	-
TDM-35	Oil-filled transformers of up to 35 kV	1	1	1	1	1	1	1	1	1	-
TDM-10S	Transformers with solid insulation of up to 15 kV	1	1⁽²⁾	-	-	-	1	1	-	1⁽³⁾	-
TDM-35S	Transformers with solid insulation of up to 35 kV	1	4	-	-	-	3⁽⁴⁾	1	-	1	2⁽⁵⁾

Notes:

⁽¹⁾ - additional option of monitoring system;

⁽²⁾ - by request TDM-10S can be equipped with 2 temperature sensors;

⁽³⁾ - additional option of monitoring system;

⁽⁴⁾ - monitoring and locating discharge activity using three UHF antennas;

⁽⁵⁾ - two temperature stages with relays for switching on transformer blower fans.