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Transformer Advantage LTC


Dual-Channel Monitor for Load Tap Changers
Monitors main tank & LTC tank temperatures.

The Transformer Advantage is a precision temperature monitor for liquid immersed power and distribution transformers. It is rugged, fully electronic and field configurable. With Transformer Advantage, users can extend transformer life, utilize maximum capacity and reduce maintenance costs.

Seven models in the Advantage line offer a range of functions and configurations. All use an accurate and stable platinum temperature sensor (RTD) to precisely measure critical liquid temperatures. Probe options fit most popular thermowells, or magnetically mount on units without wells.  Setpoint relays can activate alarms or multiple stages of cooling at different temperatures. A sequencing function equalizes run time between cooling stages. The fan timer can exercise fans at a preset time each day.

Advantage LTC
The Advantage LTC helps extend maintenance intervals and reduce the incidence of transformer failure due to Load Tap Changer problems. The Advantage LTC measures the main tank and Load Tap Changer tank temperatures. Both a difference and deviation (difference trend) are calculated to detect contact wear, misalignment, coking, overloading, locked rotor and other heat-generating conditions. Because LTC degradation is a long–term effect, sophisticated digital filtering techniques and a proprietary LTC tailoring function are used to avoid false alarms from short–term changes. Best accuracy is achieved with thermowell probes in both the main and LTC tanks. For LTCs without a thermowell, magnetic probes are mounted on both tanks.

  • Two RTD inputs.
  • High accuracy probes for various size thermowell.
  • Magnetic probes for LTC without thermowell.
  • Up to 12 relay outputs.
  • Analog retransmit.
  • Auxiliary inputs.
  • DNP-3 & Modbus protocols.

Advantage LTC part numbers begin with G6E; older models with G6R

Transf-Advantage-Datasheet                   Advantage Simplified Selector

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Setpoint Relays
First RTD Probe
4 wire
Second RTD Probe
CT Input
SCADA Outputs
Thermowell Probe Adapters
Threaded adapter & tip sleeve for each thermowell probe ordered.
Input Options
Miscellaneous Options
3 digits required in part number. If no options needed, select both X & XX. If more than 3 needed, select SXX and list on order.
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