PRODUCTS FOR CAST RESIN / DRY TYPE TRANSFORMERS
 

This series of controllers are designed for safe operation of medium voltage cast resin / dry type transformer. It is suitable for control room as well as marshalling box installation and is built for long and trouble-free operation under extreme conditions of services associated with transformer.

  
 
     Parametric Comparative Data.   Frequently Asked Questions.
 
  Transformer Protection Relay (WTI)  
    TR-7543
   
- Single channel µC based winding temperature indicator.
- Compact design with flush mounting on panel in control room or inside marshalling box.
- Three potential free C/O contacts for High Temperature Alarm, Trip & to warn against open or wrong sensor connections.
- One potential free NO contact for fan operation.
- Fully user programmable with self-test facility.
- Options of different auxiliary supply voltages.
- Combicon connectors for ease of wiring.
 
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  Transformer Protection Relay (WTS)
    TR-7544
- Four channel µC based winding temperature scanner.
- Designed for monitoring temperature of all the three phase windings and core of medium voltage cast resin / dry type transformer.
- Compact design with flush mounting on panel in control room or inside marshalling box.
- Designed for high ambient temperature up to 70 °C.
- Four potential free C/O contacts for Fan control, High TemperatureAlarm, Trip & to warn against open or wrong sensor connections.
- Fully user programmable with self-test facility
- Auto & Manual fan exerciser control.
- Combicon connectors for terminations
   
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   Transformer Protection Relay (WTS)  
    TR-7560
- Three channel winding temperature scanner.
- Designed for monitoring temperature of all the three phase windings.
- Two potential free NO contacts for High Temperature Alarm & Trip.
- Two analog outputs 0-1mA and 4-20mA signal.
- Options of different auxiliary supply voltages.
 
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   Transformer Protection Relay (WTS)
    TR-7570
- Four channel µC based winding temperature scanner.
- Designed for monitoring temperature of all the three phase windings and core of medium voltage cast resin / dry type transformer.
- Four potential free C/O contacts for Fan control, High Temperature Alarm, Trip & to warn against open or wrong sensor connections.
- One analog output 4-20mA signal (Optional).
- Options of different auxiliary supply voltages.
- TR-7570-C, a variant model is available with Isolated RS-485 interface with Modbus RTU protocol in lieu of 4-20mA signal.
   
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   Transformer Protection Relay (WTS)     
    TR-7576  
- Six channel µC based winding temperature scanner.
- Designed for monitoring six critical temperature parameters on the transformer, like three windings and core or 6 winding points either 3 from primary and 3 from secondary or 3 from top and 3 from bottom of the three phase windings).
- Designed for high ambient temperature up to 70 °C.
- Four potential free NO contacts for Fan control, High Temperature Alarm, Trip & to warn against open or wrong sensor connections.
- Fully user programmable with self-test facility
- Auto fan exerciser control.
- Options of different auxiliary supply voltages.
- TR-7576-C, a variant model is available with Isolated RS-485 interface with Modbus RTU protocol in lieu of 4-20mA signal.
 
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   Transformer Protection Relay (WTS)     
    TR-7578  
- Eight channel µC based winding temperature scanner.
- Designed for monitoring eight critical temperature parameters on thetransformer, like three windings and core or 6 winding points (either 3 from primary and 3 from secondary or 3 from top and 3 from bottom of the three phase windings) plus core temperature and/or enclousure temperature.
- Designed for high ambient temperature up to 70 °C.
- Four potential free C/O contacts for Fan control, High Temperature Alarm, Trip & to warn against open or wrong sensor connections.
- User programmable 4-20mA remote signal range. (for 4mA range is –25 to 100°C & for 20mA range is 150 to 225°C).
- Options of different auxiliary supply voltages.
- TR-7578-C, a variant model is available with additional Isolated RS-485 interface with Modbus RTU protocol.
 
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   Remote Winding Temperature Indicator    
    RWTI-400M (using 4-20mA signal)  
- µC based design.
- Compatible with our models TR-7544, TR-7560, TR-7570, TR-7576, TR-7578 and TR-7578-C.
- Accepts one 4-20mA from PECON WTS models or any other 4-20mA signal and displays the termperature.
- Provides one repeat isolated current signal of 4-20mA of winding temperature for SCADA/DAS or for additional indication.
- Desinged for flush mounting on panel in control room.
   
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   Remote Winding Temperature Indicator    
    RWTI-400C (using RS-485 communication)  
- µC based design.
- Compatible with our models TR-7544-C, TR-7570-C, TR-7576-C and TR-7578-C.
- Acquires current & maximum temperature data of all channels, status of relays and set-points using RS-485 communication port and diplays the same using two displays.
- Provides one repeat isolated current signal of 4-20mA of winding temperature for SCADA/DAS or for additional indication.
- Desinged for flush mounting on panel in control room.
   
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   Remote Winding Temperature Indicator    
    RWTI-400 (using 4-20mA signal)  
- Solid State Design.
- Digital display offers unambiguous display.
- Indications provided for no signal, under-range and over-range.
- Setting provided for zero and span adjustment.
   
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   RTD Sensor  
     S-02
- Suitable for all our WTI / WTS.
- 3 wire, PT-100 type sensor (IEC-60751, Class B)
- Temperature range : -50 to 200 °C
- Standard lead length : 1 meter. (Other lengths available on demand).
- Dielectric Strength : 2KVAC rms for 1 min.
   
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