HV Load Tap Changers | Franklin Electric Incon 1250B LTC

HV Load Tap Changers By Franklin Electric
HV Load Tap Changers – Franklin Electric
The 1250B Load Tap Changer, from Incon by Franklin Electric, provides highly accurate local and remote indication of load tap changer position and other difficult synchro-based position readings. The tap load changer 1250B model now comes with improved communication options.
Load Tap Changer – Utility And Industrial Measurement
The 1250B Load Tap Changer demonstrates the utility standard and industrial standard for the measurement of the following:
- Transformer Load Tap Changer Position
- Works With Virtually All Transformer LTC’s
- Single Phase Voltage Regulator Position
- Liquid Level
- Machine Position
- Thickness Gauging
- Spillway Gate Position

Franklin Electric Load Tap Changer 1250B LTC
Incon 1250B HV Load Tap Changer Features And Capabilities
- This sophisticated instrument can help solve tough position measurement problems
- Provides absolute local & remote position feedback
- Informs Dispatchers of LTC or Regulator position in real-time
- Performs Non-Linear Conversion
- Interfaces with PLC’s and PC based SCADA systems
- Addressable RS-485 Multi-Drop Communication
- RS-232 Serial Communication
- ASCII or MODBUS Protocols
- Highly Visible 5 Digit LED Display
- Small size fits in 1/8 DIN panel cutout
BENEFITS of the 1250B Load Tap Changer
- Programmable via the Serial Port
- Proportional Linear or Stepped Analog Output
- Programmable Hi/Lo Relay Limits
- Highly Accurate over Multiple Turns
- Easy Automation Interface
- Proven Reliability
- Maintenance Free
- Retrofit to Older Systems
- Simple Programming
- Cost-Effective
MODEL |
DESCRIPTION |
Model 1250B | HV Load Tap Changer |
1250B-U-W-Y = Options, see below |
||
U = Output Options: | 0 1 2 4 |
= 0-1 mA = ±1 mA = 0-2 mA = 4-20 mA |
W = Control / Isolation: | R I |
= Hi/Lo Relay Limits = Input Isolation |
Y = Comm. Options: | S M |
= RS-232 Serial = RS-485 MODBUS |
GENERAL |
|
Input Signal: | Synchro (5 wire) 90 V maximum |
Resolution: | ± 0.001% of full scale or 6 arc minutes |
Accuracy: | ± 0.02% of full scale maximum (0.01% typical) |
Temperature Drift: | ± 0.01% per °C |
Operating Temperature: | 0 ° to 55 °C |
Humidity: | 10% – 90% non condensing |
Weight: | 24 ounces |
Voltage: | 117 ± 10% |
Frequency: | 47 – 63 Hz |
Load:
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8 Watts, maximum
|
DISPLAY |
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Type: | 5-digit LED |
Digit Height: | 0.56 inch (14.2 mm) |
Viewing distance: | 23 feet |
Decimal point:
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Field programmable (scaled modes only)
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OPTIONAL ANALOG OUTPUT |
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Outputs: | ± 1 mA 0-1 mA 0-2 mA 4-20 mA (requires 15 to 24 VDC external loop power) |
Compliance: | 10 Volts (0-1 mA, ± 1mA, 0-2 mA) |
500 Ohms (4-20 mA)
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|
Non-Linearity: | ± 0.1% of full scale |
Resolution:
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12 bits (± 0.025% of full scale)
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OPTIONAL HI/LO RELAYS |
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Contact Rating: | 3A @ 125/250 VAC (resistive), 30 VDC |