HV Load Tap Changers | Franklin Electric Incon 1250B LTC

Franklin Electric Grid Solutions

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 Changers 250b

Franklin Electric Load Tap Changer 1250B LTC


Back view of the Franklin Electric 1250B Load Tap Changer

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

 


Franklin Electric Load Tap Changer 250b

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:


8 Watts, maximum


DISPLAY
Type: 5-digit LED
Digit Height: 0.56 inch (14.2 mm)
Viewing distance: 23 feet
Decimal point:


Field programmable (scaled modes only)


OPTIONAL ANALOG OUTPUT
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)


Non-Linearity: ± 0.1% of full scale
Resolution:


12 bits (± 0.025% of full scale)


OPTIONAL HI/LO RELAYS
Contact Rating: 3A @ 125/250 VAC (resistive), 30 VDC