Description
THE UTILITY INDUSTRY'S STANDARD
With over 40 years of proven service in over 33,000 utility transformers around the globe, the 1250-LTC does so much more than just monitor tap position. It is a vital tool that utilities use to predict transformer maintenance and prevent the failure of their LTC’s.
Key Advantages
- BALANCE LOADS - Ensure transformer loads are balanced.
- REGULATE VOLTAGE - Regulate line voltage by adjusting feeder voltage.
- REDUCE COSTS - Reduce power costs by providing minimum line voltage to the customer.
- HIGHLIGHTS & TECHNOLOGY -
- Receives a signal from a synchro transmitter (1292 series)
- Provides absolute position feedback
- Displays tap position and transmit this information over analog and serial lines
- Works with any LTC or voltage regulator
- Includes a software draghand feature to report highest and lowest tap position
- Programmable through the serial port or front panel
- Provides an analog output to SCADA or tap controller
- Deploy predictive transformer maintenance with intelligence.
MODEL COMPARISON
| LTC MONITOR | 1250B | 1250-LTC | 1511-LTC |
| Applications | Transformer LTC Position, Hydro Dam Gate Position, Dam Head/Tail Water Level, Industrial Rotary Power | Transformer LTC Position, LTC Position Data Collection | Transformer LTC Position |
| Transducer Type | Synchro (1292) | Synchro (1292) | Resistance Switch (Slidewire) |
| Input Signal | 0-90 VAC, 50/60 Hz | 0-90 VAC, 50/60 Hz | 0-24 VDC |
SPECS All Models
| Resolution (1250B & 1250-LTC) | ± 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 (1250B) | Field programmable |
| Optional Analog 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) 5 mA (0-10 VDC, ± 10 VDC) 1511-LTC |
| Resolution | 12 bits (± 0.025% of full scale) |
| Optional Hi/Lo Relay Contact Rating | 3A @ 125/250 VAC (resistive), 30 VDC |
| Communication Options | RS-232 (ASCII) RS-485 Full Duplex (MODBUS) |
SYNCHRO TRANSMITTERS
The Synchro Transmitter is the preferred position indicating technology where reliability, rugged design, and accurate absolute position data are critical. The Transmitter is available with a surge suppression option and a mounting bracket. Designed for use with 1250B and 1250-LTC, solid-state INCON Programmable Position Monitors.
| Model | Description |
|---|---|
| 1292 | Synchro transmitter |
| 1292K | Synchro transmitter with "L" mounting bracket |
| 1292S | Synchro transmitter with surge protection circuit |
| 1292KS | Synchro transmitter with mounting bracket and surge protection circuit |
| 1945 | 15 VDC Loop Power Supply (For 4-20 mA Analog Output) |
Highlights
- Extra-rugged right-angle "L" bracket assembly option for secure, parallel-to-surface mounting
- Circuit board terminations option for easy wiring connections, without crimp-lugs
- Surge suppression option for transient protection
- Highly accurate output signal corresponds to rotary position
- Absolute position sensor, no zero-position loss after power-down
- Reliable, rugged, long-life transmitter
- Very fine resolution-extremely accurate and reliable
- Does not require re-zeroing or periodic calibration
- Excellent signal/noise immunity
- Stable over time and temperature
- Virtually unlimited life
- Can be retrofited to older LTC’s without existing synchros
Applications
- Ideal for power, process, and industrial equipment applications
- Transformer load tap changers
- Equipment position
- Hydro-electric spillway & generator gates
- Valves of all kinds
- Machine tools
- Cable reels and hoists
- Screw conveyors, and more
Specifications
| Model | 1292 | 1292K | 1292S | 1292KS |
| Mounting | Synchro flange | "L" bracket | Synchro flange | "L" bracket |
| Wire Terminations | Ring lugs (provided) | Ring lugs (provided) | Phoenix terminal blocks | Phoenix terminal blocks |
| Wire Size | 22-18 AWG | 22-18 AWG | 28-14 AWG | 28-14 AWG |
| Surge Protection | None | None | 150 Volt, 14 mm Metal Oxide Varistors (3 ea.) | 150 Volt, 14 mm Metal Oxide Varistors (3 ea.) |
| Fuse Protection | None | None | 5A Fast Blow | 5A Fast Blow |
FLEXIBLE COUPLING
The "Quick Connect" Flexible Coupling is designed for unique mounting and connecting applications. It makes retrofits to older equipment easy with standard lengths and coupling diameters to fit most LTC applications.
| Model | Description |
|---|---|
| 1293-KIT | Universal coupling kit, includes an 18 inch flexible shaft and one each 0.250", 0.375" and 0.500" couplings |
BUILD A MODEL NUMBER
1293-X-Y
X = Shaft Length
9 = 9 inches
18 = 18 inches
X = Custom length, X inches
Y = Coupling Diameter
250 = 0.25 inch
375 = 0.375 inch
500 = 0.50 inch
Highlights
- Quickly connects to all Model 1292 Synchro Transmitters
- Secure, positive attachment to an LTC shaft
- Two standard lengths
- Three standard coupling sizes
- Custom designs available
TRANSMITTER RETROFIT KIT
Provides easy Synchro Transmitter retrofit to voltage regulators.
| Model | Description |
|---|---|
| 1265-5.75 | 5.75" dial face diameter transmitter retrofit kit |
| 1265-6.25 | 6.25" dial face diameter transmitter retrofit kit |
| 1265-7.19 | 7.19" dial face diameter transmitter retrofit kit |
| 1265-7.62 | 7.62" dial face diameter transmitter retrofit kit |
| 1265-8 | 8" dial face diameter transmitter retrofit kit |
| 1269-10 | 10 foot (3 m) interface cable |
| 1269-20 | 20 foot (6.1 m) interface cable |
| 1269-50 | 50 foot (15.2 m) interface cable |
| 1269-100 | 100 foot (30.4 m) interface cable |
-
The 1265 does NOT include lightening / surge protection. If needed, MOV protection should be installed in a nearby junction box.
Highlights
- Some Load Tap Changers and Voltage Regulators can not be equipped with Selsyn® synchro transmitters. This problem can be easily solved with the INCON model 1265 Transmitter Retrofit Kit.
- For those applications where there is no easy way to retrofit a transmitter to the LTC drive mechanism, INCON offers the Model 1265 Transmitter Retrofit Kit.
- The 1265 retrofit kit replaces the glass lens on the local indicator dial.
- The 1265 is designed for use with the INCON model 1250B Programmable Position Monitor, which displays the LTC position and can transmit a proportional analog signal to SCADA.
- The Kit comes complete with a Synchro, mounted on a clear Lexan Dial and a two-pronged engagement arm that tracks the position of the Dial Indicator needle.
- The Kit also includes the mating connector pieces, to facilitate assembly of a field wiring cable, although it is recommended that the factory-assembled cable be used.
- Provides accurate Tap Position Status in remote locations.
- Proven reliability with many in Utility & Industrial operations for over 20 years.
- Does not interfere with mechanical draghand operation.
- Highly reliable and accurate (1292) synchro transmitter is included.
- Saves manual reporting time and money.
- Maintenance free.
- Can be retrofited to older LTC’s without existing synchros.
Specifications
| Power input | 115 Volts AC |
| Output signal | 0 to 90 Volts AC |
| Isolation | 900 Volts, rotor to stators |
| Temperature range | -40 to 158 °F (-40 to 70 °C) 92% humidity (non-condensing) |
| Display type | Clear, Lexan dial face 5.75, 6.25, 7.19, 7.62 or 8.00 inches |
| Depth to front surface | 4.0 inches (10.2 cm) with cable off |