TC-10B Brochure
Power-Line Carrier
Technologies, Inc.
BW Selectivity
Power-Line Carrier is one of the most reliable and economical choices available for pilot
relaying and transfer trip applications:
Reliability proven by more than fifty years of field experience at Electric Utilities all over the world.
Economic because it uses the power line itself as the medium, thereby not requiring more expensive
alternatives such as microwave, leased circuits or fiber optics.
More transmission lines around the globe rely on Power-Line Carrier (PLC) for relay communications than
any other method.
Station Bus
Fault
2
Protective
Relay
System
1
Line Trap
T/R
Coaxial Cable
Coupling Capacitor
Line
Tuner
Drain Coil
Applying PLC requires no licensing or right-of-way negotiations. In many cases the utility engineer can design, specify and
install a PLC system without involving any other departments. For a new installation, the PLC channel is guaranteed to be
ready before line energization since it uses the line itself for its communication path.
PLC, like other types of channels, works closely with protective relay systems to provide high speed clearing of internal line
faults while restricting tripping for external faults. Channel logic, within the relay system, allows coordinating for identifying end
zone faults, weak-infeed conditions and current reversals.
The Pulsar Technologies products presented here represent the latest generation of quality Power-Line Carrier products. They
are based on more than fifty years experience in thousands of installations worldwide.
TC-10B and TCF-10B
Fully frequency programmable, 30 to 535kHz (no filter groups!).
Terminal blocks accept up to 12 AWG.
10 watt output standard, 50 watt or 100 watt available.
Selectable keying voltage – 15, 48/60, 110/125, or 220/250 Vdc.
TC-10B
Fully compatible with all other manufacturers’
previous and current "on-off" carriers, i.e. TC, TC10, TC-10A or KR (Note: The voice adapter feature
is not compatible with certain other manufacturers’
versions).
Independent start and stop inputs, circuit opening or
closing options, allows interfacing to a wide range
of relay schemes.
Two independent outputs, each capable of up to 1
ampere at station battery. Limiting resistors
provided for use with electro-mechanical relays that
require 20 or 200 mA.
TCF-10B
The TCF-10B is available as an individual transmitter,
receiver or transceiver in one 3 RU high chassis.
Three available bandwidths
Narrow-band (380 Hz) where speed is not critical or
spectrum conservation is important.
Medium-band (800 Hz) used in high-speed relaying.
Extrawide-band (1600 Hz) where relaying requires a
super-high-speed channel.
Channel shift is based on the bandwidth
Three bandwidths available
Wide-band (1600 Hz) for standard use.
Narrow-band (800 Hz) for applications requiring
improved signal-to-noise ratio.
Extra Wide Band (3500 Hz) for Phase Comparison
Relaying Systems.
Options
Universal checkback (programmable as remote or
master).
Voice module with signaling.
Narrow-band (380 Hz) shifts ± 100 Hz.
Medium-band (800 Hz) shifts ± 250 Hz.
Extra-wide (1600 Hz) shifts ± 600 Hz.
Medium-band (800 Hz) is available with ± 100 Hz shift
for interfacing with previous generation equipment at
the remote end.
Options
Electromechanical output option provides six contact
outputs, each can be independently driven by Trip 1,
Trip 2 (three-frequency application) or guard to
produce a contact closure or contact opening.
Three-frequency option allows unblocking relaying and
direct transfer trip functions over the same channel,
economically conserving frequency spectrum. This
option utilizes the medium-band or extrawide-band
receivers with the ± 250 Hz shift.
Voice module with signaling (transceiver unit only).
Self-adjusting Receiver
This unit is pin-for-pin compatible with the previous TC-10B/ TCF-10B design,
performs the same functions, and is even easier to adjust. This enhanced
receiver with backward compatibility is evidence of our commitment to stay on
the leading edge of Power-Line Carrier technology for our customer’s benefit.
UNIVERSAL RECEIVER
2500
kHz
Receiver Features:
+10
Digital Signal Processing (DSP) Technology.
Automatic setting of receiver margin to 15 dB, adjustable ± 5 dB in 1
dB steps.
Continuous four-digit LED frequency readout.
Carrier level indicator uses easy-to-read LED bargraph display.
Frequency programming, 30-535 kHz without changing filters.
Bandwidth is field selectable.
No instruments required to set the receiver module.
One module replaces two modules (Receiver/Detector & CLI for TC10B or Receiver/Discriminator & CLI for TCF-10B).
Front-end analog and digital filtering provides superior bandwidth
selectivity.
Optimum receiver sensitivity maintained.
Fits into existing chassis, even those shipped under the Westinghouse
or ABB nameplates.
Older receiver units easily upgraded in the field.
+5
CANCEL / RAISE
0
LOWER
–5 dB
SET
–10
–15
–20
MARGIN
VOICE ADAPTER
CALLING
P.B.
Voice Adapter
Works with Self-Adjusting Receiver.
Works with old Voice adapters at remote end of line.
ALARM
RECEIVE
AUDIO
Improved voice quality.
Built-in signaling alarm for ringing.
HANDSET
DETECT
TC-10B
Application
The TC-10B is an "on-off" type PLC particularly suited for Directional Comparison Blocking or Phase
Comparison Blocking schemes. It is available with Maintenance Voice and Universal Checkback options.
Universal Automatic Checkback
With the drive towards automation in substations, here is your answer for testing the on-off Power Line Carrier.
One module performs either remote or master functions.
Each master works with up to 10 remotes.
PC instruction set integral to checkback uses Windows terminal program.
Failed terminal identification.
Applicable to any TC-10B chassis.
CHECKBACK
Loop back testing.
Commands initiated via front pushbuttons, contact inputs or pc.
Retrieve & change remote settings & events.
PC
INTERFACE
5 outputs:
Major alarm
Minor alarm
3 user selectable
- Delayed alarm
- Test in progress
- Successful test
- Successful carrier recovery
- Disabled automatic tests
HOLD
2 SEC
TST
CHECK
LOOP
RST
ALARM
RECOVER
1
MAJOR ALRM
2
MINOR ALRM
3
RECOVERY
4
NOISE
C
CHECK OK
PRGM
SET
TCF-10B
Application
The TCF-10B is a frequency-shift keyed type PLC particularly suited for Directional Comparison Unblocking or
Phase Comparison Unblocking and Direct Transfer Trip relay schemes. A full-duplex maintenance voice channel,
three-frequency configuration and electromechanical outputs are available as options.
TCF-10B Receiver Logic Module
Directional Comparison or Direct Transfer Trip
Low level time delay
50, 75 or 100 ms.
Selectable unblock timer
150, 300 or 500 ms.
Trip hold timer
10, 50 or 100 ms.
Guard hold timer
10, 50 or 100 ms.
Noise blocks unblock
Yes or No.
One Amp Transistor Switched Outputs
No electro-mechanical outputs required unless directly tripping
of the line breaker is required. In most applications, outputs can
be powered from station battery, thereby eliminating the need
for the 20 Vdc auxiliary power supply. More compatible with
microprocessor relays. (Older relay systems or phase
comparison systems may still require 20 Vdc supply.)
Optional Electromechanical Output
6 Relays, field selectable for trip or guard; normally open
or normally closed.
Phase Comparison
Dual Phase Comparison or Segregated Phase
Comparison.
Polarity Selectable for Trip Positive/Trip
Negative.
RCVR LOGIC
GOOD
CHANNEL
CHECKBACK
TRIP
TRIP
GUARD
Breaker trip rated.
(DCU or DTT)
Hybrids
Application
Hybrids are used to insure proper combining and
separation of signals when paralleling two or more
transmitters or paralleling transmitters with receivers.
Three types of hybrids are available:
Resistive hybrid H1RB.
Reactive hybrid H3XB.
Skewed hybrid H1SB or H1SB-R.
Skewed Hybrid with Receiver Port 50 Ohm termination (H1SB-R)
This skewed hybrid has the receiver port internally terminated into a 50 ohm load. This eliminates the need for an
external resistor, ensuring proper termination of the hybrid for optimal isolation.
Hardware
All three hybrids are available in a metal case measuring 3.25"H by 5.625"W by 5.00"D.
Characteristics
RF Connections
H1RB
H3XB
30-500kHz
30-535kHz
30-500kHz
30-535kHz
30-500kHz
30-535kHz
Max Power
15 watts
15 watts
100 watts
Output Impedance
50 ohms
50 or 75 ohms
44-75 ohms 50
ohms</TD< tr>
Frequency Range
Insertion Loss
3.5 dB max 3.5 dB max
Isolation/Return Loss 30 dB min
40 dB min
H1SB-R
Xmtr: &lt1
Xmtr:
< 1dBdB
Rcvr:
Rcvr: 13
13dB
dB
40 dB with 50 ohm termination
Port
H1RB
H3XB
H1SB-R
Input 1
BNC
BNC
BNC
Input 2
BNC
BNC
BNC
Output
BNC (male)
UHF
UHF
Stand-Alone
Universal Checkback
Amplifiers
Application
LPA50 and LPA100
The Stand-Alone Universal Checkback (UCBS) provides
periodic testing of non-TC-10B "on-off" carrier sets. The
UCBS incorporates the same universal checkback module
as is supplied in the TC-10B. The UCBS determines the
viability of the complete channel including the transmitters,
receivers and associated coupling equipment. Periodic
testing is required for the normally "off" channel, to provide
warning of signal deterioration prior to needing it for pilot
relaying decisions.
Applications for PLC with high attenuation may require more
transmitter power than the standard 10 watts. The LPA50 and
LPA100 are available for these applications. They are typically
applied where line attenuation is a serious problem as in
extremely long lines (150 or more miles) or where
underground cable is used for all or part of the line. Combining
cable with overhead lines creates an impedance mismatch
between the 20 to 60 ohm cable and the 150 to 300 ohm
overhead line. This mismatch can cause a portion of the
carrier signal to be reflected back to the transmit end,
attenuating the signal significantly.
The LPA50 and LPA100 are linear amplifiers that allow
several frequencies to be combined without intermodulation
or custom filters. No adjustments or settings are required for
any transmit frequency. By combining two or more
frequencies at the lower levels, hybrids can be eliminated;
thus increasing the resultant power output. Up to three
frequencies can be combined using the LPA100 with each
frequency having more than 10 watts of power going into the
line tuner.
Hardware
The UCBS is supplied in a modular chassis containing two
plug-in modules and a "motherboard" with rear-mounted
terminal blocks. Each unit contains a Universal Checkback
Module and Power Supply module.
Mounting
Chassis 3 inches wide by 5.75 inches (3RU)
Optional 19 Inch rack with an adapter plate available
Connections
Rear-mounted terminal blocks
Hardware
The LPA50 is packaged in the same 3 RU chassis as the TC10B and TCF-10B and utilizes the same power supply and
power amplifier modules. The LPA100 is contained in two 3
RU chassis. Four 12.5 watt power amplifier modules are
combined to form one LPA50, while the LPA100 consists of
eight 12.5 watt modules.
Connections
Terminal blocks for the battery input and alarms
UHF/BNC connectors for the RF inputs and outputs
Pulsar Technologies, Inc. designs and manufactures specialized communications
equipment for Electric Utility and Industrial applications. The employee owners of
Pulsar are committed to providing our customers with high quality, robust, and cost
effective solutions for their communication requirements.
Technologies, Inc.
(954) 344-9822 l Fax (954) 340-6676 www.pulsartech.com
4050 N.W. 121 Avenue, Coral Springs, Florida 33065 U.S.A.
Technologies, Inc.
THE BRIGHT STAR IN UTILITY COMMUNICATIONS
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