The Model 1250-LTC provides critical LTC Maintenance Data to assist in making informed decisions, while continuing to provide highly accurate local and remote indication of load tap changer position.
Applications
Transformer Load Tap Changer Position
Works in virtually all transformer LTC’s
Single Phase Voltage Regulator Position
Features
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Features
CAPABILITIES
Provides absolute position feedback
Tap Change Displacement (position variation, 0.1 degree resolution)
Total Operations Count
Number of Tap Changes “up to” or “down to” each Tap
Number of Consecutive Tap Changes in one Direction
Number of Days Since First or Last Change to Highest and Lowest Tap (Draghands)
Number of Days Since Passing Through Neutral
“Unstable Signal” and loss of signal detection
Momentary Relay Acknowledgement at Each Tap Change
High Tap and Low Tap Alarm Limits
BENEFITS
Interfaces with PLC’s and PC-Based SCADA systems
Elapsed Time Clock
Full Duplex RS-232 Serial Communication
Addressable RS-485 Multi-Drop Communication
Programmable via the Serial Port
2ea, Form A Dry Contact Relays
Proportional Stepped Analog Output
ASCII or MODBUS Protocols
Highly Visible 5 Digit LED Display
Small size fits in 1/8 DIN panel cut-out
Maintenance Free
Can be retrofited to older LTC’s with existing synchros
