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» 1M122 Parallel Control

2V165-S Transformer Parallel Control Relay

The 2V16x Series relays are designed for the control of motor driven on-load power transformer tap changers. The 2V165 Series relays are designed to monitor & control the tap changers of up to four (4) transformers connected on a common bus & operating in the master slave control configuration. Master follower parallel control schemes traditionally use auxiliary switches on the tap changers to determine out of step errors. While this is a reliable & proven technique there are two significant drawbacks:

1. Wiring complexity between the tap changer auxiliary switches

2. Requirement for matched tap changers

The first issue is overcome by replacing each tap changer auxiliary switch with a TPI transducer (2V200), which sends a frequency signal proportional to the tap position. This requires only two wires for each tap changer & is simply wired back to the 2V165. The second issue is overcome with a user specified tap position logic table in the 2V165 to allow non-matched tap changers to operate together. The tap position of each transformer is monitored as well as the raise / lower commands initiated by the selected master voltage regulating relay. The 2V165 responds by sending the appropriate raise / lower commands to each tap changer in accordance with the tap position logic table.

Features

  • uMATRIX PLATFORM
  • Large STN graphics LCD
  • System status LED indicators
  • Simple menu setting procedure
  • 40-300V DC aux. supply
  • 20-70V DC aux. Optional
  • Self diagnosis & fail alarm
  • Size 4M56-S draw out case
  • Made in Australia
    CONTROL MONITORING
  • Tap change out of step alarm
  • Pre-configured parallel control schemes – refer 1M122 technical bulletin data display
  • Tap position indicator input for up to four (4) transformer tap changers
  • Reference tap position indicator output
  • Transformer in step status
    COMMUNICATION
  • Optical isolated RS232 PC link
  • Non platform specific PC programming software
  • Optical isolated RS485 or RS232 network port
  • MODBUS RTU compatible network protocol

 

 

 

 

 

 

 

 

 

 

Changes introduced on the 2V165-S

  • Case length reduced by 18mm to suit 4M56-S case;

  • LED backlighting to reduce EMC emissions – contrast adjustment no longer required;

  • Front panel USB programming port to increase data transfer speed and improve compatibility with notebook PC’s;

  • Network communications port is now optional to maintain low cost of base model;

  • Network communication port maintained the optically isolated RS485 serial port but the RS232 configuration option has been deleted;

  • New current and voltage channels to improve measurement stability;

  • New status input option covering 18-275V AC and 300V DC range;

  • Updated switchmode power supply to reduce EMC emissions and improve transient overload protection;

  • Surface mount production technology to allow increased component density for additional functionality now and in the future.

What has not changed from the 2V165

  • I/O and basic functionality has been maintained;

  • Basic menu structure and operation has been maintained;

  • Electrical terminal mapping has not changed allowing existing wiring diagrams to be maintained;

  • Compatibility with existing application software back to version 0500 maintained;

  • Compatibility with existing uMATRIXwin programming software maintained;

  • Modbus RTU network communication protocol maintained Case size 4 has been maintained although the length has been reduced.

  • Made in Australia

 
 

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