Product description
With the online monitoring system TAPGUARD® 260, monitoring the current operating status of your MR tap changer could not be easier. The device determines the current operating parameters of the tap changer, such as load current, temperature, motor drive data, tap-change torque and contact position, during each tap change operation.
On the basis of this information, the TAPGUARD® 260 monitoring system evaluates the proper execution of every current tap-change operation online.
If a preset limit value is exceeded, the TAPGUARD® 260 blocks the motor drive and prevents extensive damage to the tap changer and the transformer.
Of course, the parameter limit values can be changed within defined limits to fit your wishes and system specifications.
The TAPGUARD® 260 can prevent damage not only to your tap changer. By monitoring service intervals, switching tube lifetime (with VACUTAP®), contact wear and oil carbonization (with OILTAP®), it leads to an optimized and condition-based maintenance. Through this, the TAPGUARD® 260 reduces product lifecycle costs and increases reliability. An integrated log book shows the operation and maintenance history of your tap changer.
Prevent a failure of your transformer - trust the TAPGUARD® 260. It knows when the next service is due.
Technical Data
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TAPGUARD® 260
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Calculating all important maintenance criteria
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Signaling the next pending maintenance
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Taking the soot content into account (only OILTAP®)
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Calculating the contact wear (only OILTAP®)
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Showing the lifetime of the vacuum interrupters of existing MR on-load tap-changers (only VACUTAP®)
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Monitoring the on-load tap-changer
• Torque
• Load current
• Temperature
• Diverter switch operation
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Monitoring the motor linkage and the smooth running in the three-column version
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Controlling the motor-drive unit heater
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Motor Current Index
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IEC60870-5-101/103
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DNP3
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MODBUS ASCII/RTU
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Siemens LSA
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IEC61850
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BCD
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Current signal
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Voltage signal
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Resistor contact series
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Resolver
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Cooling system control
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Load current, load voltage
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Ambient temperature
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Tap position (analog, BCD)
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Effective and apparent power
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Aging rate
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Tap-change operation statistics
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Upper oil temperature
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Winding temperature
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Hot spot
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Lower oil temperature
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Winding temperature 1, 2, and 3
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Second ambient temperature
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Oil level of the conservator transformer, OLTC
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Dehydrating breather transformer
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Acquiring DGA sensor information (up to 9 gasses)
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Moisture in oil (transformer, OLTC)
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Total gas content
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Inflow temperature
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Outflow temperature
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Operating statistics
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Efficiency
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Monitoring the cooling system
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Voltage regulation, including line drop compensation
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Parallel mode
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Customer-specific topology
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