Weschler Transformer Advantage

Transformer Advantage

Transformer Temperature Monitoring and Control

• Direct Oil Temperature
• Calculated or Simulated Winding Temperatures
• LTC Temperature Difference (LTC Models)
• Loss of Life (Insulation Aging) Option
• Single, Dual and Three RTD Units
• Multi-Stage Fan/Pump Control with Readback
• Auxiliary Analog & Digital Inputs
• Weatherproof NEMA 4X Metal Case
• SCADA Ready – Analog, Digital, DNP3, Modbus
• Enhanced Windows Setup & Monitoring Software

Product Description

Temperature Monitor & Cooling Control- Transformer Advantage – Weschler Instruments

Transformer Temperature Monitoring and Control

• Direct Oil Temperature
• Calculated or Simulated Winding Temperatures
• LTC Temperature Difference (LTC Models)
• Loss of Life (Insulation Aging) Option
• Single, Dual and Three RTD Units
• Multi-Stage Fan/Pump Control with Readback
• Auxiliary Analog & Digital Inputs
• Weatherproof NEMA 4X Metal Case
• SCADA Ready – Analog, Digital, DNP3, Modbus
• Enhanced Windows Setup & Monitoring Software

Made in the USA

  • Extend Transformer Life
  • Maximize Capacity
  • Reduce Maintenance

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.

  • Up to 11 Setpoint Relays
  • Fan Sequencing
  • Fan Exercise Timer
  • Seasonal Setback

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. 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. A seasonal setback is available on any set- point relay. A front panel test mode quickly verifies cooling and alarm operation. The high current relay contacts can be configured to fail-safe (close on monitor fault or power fail).

  • Time Stamped Peak Storage
  • Front Panel or Remote Setup
  • Digital and Analog Outputs
  • Alarm Status Display

The large alphanumeric LED display continually shows the selected transformer parameter. Front panel buttons scroll the display through other parameters and relay/alarm status. Peak and valley values for each channel are time-stamped and stored in non-volatile memory. These are easily checked and reset by the operator from the front panel or through digital communications. A password-protected supervisor mode accesses all setup parameters. Initial setup can be done from the front panel or through the optional RS232/422/485 digital ports. Windows-based configuration software significantly speeds startup.

  • EMI Hardened
  • Stress Tested
  • Fits Analog Gauge Mounting
  • Made in USA

The Transformer Advantage is a cost-effective upgrade from analog gauges. It is designed to mount in the existing gauge location and on or in the control cabinet. Probe options fit most popular thermowells or magnetically mounted on units without wells. The Advantage has been conservatively designed and stress tested to provide years of trouble-free service in the harshest environments. A wide variety of options tailor the Transformer Advantage to each application.

Simulated Winding Temperature

This is the traditional method for indicating transformer winding temperature. A heated thermowell, driven by a bushing CT, simulates the winding temperature rise above the oil temperature. This temperature rise is calibrated by the transformer manufacturer at full load. Performance is optimized for steady state or slowly changing loads. The simulated winding method is often used as a direct replacement for an analog winding gauge when higher accuracy, more configuration flexibility or a SCADA interface is required. One, two and three channel Advantage models support this method on new or existing transformers.

Calculated Winding Temperature

A newer method uses oil temperature and load current to calculate winding temperature, based on IEEE guidelines. The Transformer Advantage analyzes transformer parameters to determine thermal time constants for the oil and windings. These time constants are changed dynamically based on load and cooling conditions. The rate of change information is also utilized in the Weschler CT algorithm to further improve the winding temperature accuracy. This is particularly important when operating above nameplate rating. Three Advantage models use the CT method for winding temperature indication.

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. Setpoint relays can activate alarms or multiple stages of cooling at different temperatures.


Transformer Advantage Products
>> Datasheet & Configuration Guide (pdf)

7 Models Make It Easy to Upgrade to the Transformer Advantage

Temperature Meter - Transformer Advantage – Weschler Instruments Advantage CT Temperature Meter – Weschler Instruments
Displays oil temperature, load current, and calculated winding temperature for one or three windings.
Advantage SC Single Channel Temperature Meter – Weschler Instruments
Single channel model directly replaces one analog oil or winding gauge.
Advantage CTX Temperature Meter – Weschler Instruments
All the features of the Advantage CT, plus an additional temperature channel for bottom oil or ambient.
Advantage DC Dual Channel Temperature Monitor – Weschler Instruments
Dual channel model replaces both oil and winding gauges.
Advantage CT & LTC Temperature Monitor – Weschler Instruments
Combines the functions of the Advantage CT and Advantage LTC in one rugged unit.
Advantage TC Three channel Temperature Meter – Weschler Instruments
Three channel model measures any combination of top oil, bottom oil, ambient and winding temperatures.Data Sheet & Configuration Guide (pdf)
LTC Temperature Meter – Weschler Instruments
Measures LTC temperature trends to identify tap changer contact problems.

Transformer Advantage SC, Transformer Advantage DC, Transformer Advantage TC, Transformer Advantage CT, Transformer Advantage CTX, Transformer Advantage CT/LTC, Transformer Advantage LTC (More)

 

 

Advantage Resources:

>> View Product Line

>> Advantage Data Sheet & Configuration Guide (pdf)

>> System Diagram

>> Manuals

>> Software

>> Application Notes

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