RCC: Relay Communication Channels
Total Relay Communications
Relay Communication
Channels
NS40A Audio Tone (FSK)........................................1-1
CS51, 61, 71C Power Line Carrier (FSK)................2-1
CS22A Microwave Baseband (FSK)........................3-1
CS28A Power Line Carrier (On-Off)........................4-1
Transfer-Trip Test Panels..........................................5-1
CB30B Cabinets and Racks......................................6-1
Relay Communication Channels
Data subject to change without notice
Frequency shift keyed audio
tone or fiber optic channel
for protective relaying.
NS40
Frequency Shift Keyed
Audio Tone/Fiber Optic
Application
■ Transfer-trip and line relaying
Frequency Shift Keyed
■ NS40 uses multiple mediums
(Leased lines, Microwave, Fiber Optic)
■ 4 to 25 ms channel speeds
■ Built-in diagnostics
■ Frequency programmable
DESCRIPTION
The FSK audio tone equipment can
be configured as single or dual channel, for uni-directional or bi-directional operation. Terminations can
either be 2 or 4 wire audio
(600 Ω) or fiber optic. Fiber optic
modems are available for multimode (820 nm) or single mode
(1300 nm) fibers. The configuration
chosen depends on the protection
requirements and the degree of
security needed for the associated
transmission scheme. Reliability of
the tone equipment is enhanced by
built-in test facilities which permit inservice testing of each channel in a
local loop or checkback mode.
Typical protective relaying schemes
for which the FSK audio tone equipment is specifically suitable are:
■ Direct transfer trip for transformer
and shunt reactor protection and
breaker failure protection
■ Direct underreaching transfer trip
■ Permissive overreaching or underreaching transfer trip
Both the transmitter and receiver are
fully programmable to any frequency in the audio range, from 1190 to
3315 Hz. The channel spacing may
be 170, 240, 340, or 1000 Hz, with
speeds from 17 to 4 ms.
The basic security of the receiver is
derived from the received guard signal. The
dependability of the receiver is enhanced by
the automatic gain control’s very fast response
to a reduction in signal level. The receiver has
multi-mode squelch protection which can disable the receiver preventing potential false
operations. A unique feature of the receiver is
its ability to receive and detect guard and trip
signals simultaneously. This two signal receiving capability permits alien trip tone detection
ahead of the combiner logic.
A logic module is available to allow the user
to enhance security or dependability. A level
meter can be included with each channel.
Relay Communication Channels
Page 1-1
Data subject to change without notice
NS40A
Single Function Protection Channels
Frequency Shift Equipment for Relaying
Audio Tone
Relay Communication Channels
Data subject to change without notice
Page 1-2
NS40A
Single Function Protection Channels
Frequency Shift Equipment for Relaying
Audio Tone
Relay Communication Channels
Page 1-3
Data subject to change without notice
NS40A
Single Function Protection Channels
Frequency Shift Equipment for Relaying
Audio Tone
Relay Communication Channels
Data subject to change without notice
Page 1-4
NS40A
Single Function Protection Channels
Frequency Shift Equipment for Relaying
Audio Tone
Relay Communication Channels
Page 1-5
Data subject to change without notice
NS40A
Single Function Protection Channels
Frequency Shift Equipment for Relaying
Audio Tone
Relay Communication Channels
Data subject to change without notice
Page 1-6
NS40A
Single Function Protection Channels
Frequency Shift Equipment for Relaying
Audio Tone
Relay Communication Channels
Page 1-7
Data subject to change without notice
NS40A
Single Function Protection Channels
Frequency Shift Equipment for Relaying
Audio Tone
Relay Communication Channels
Data subject to change without notice
Page 1-8
NS40A
Single Function Protection Channels
Frequency Shift Equipment for Relaying
Audio Tone
Relay Communication Channels
Page 1-9
Data subject to change without notice
NS40A
Single Function Protection Channels
Frequency Shift Equipment for Relaying
Audio Tone
Relay Communication Channels
Data subject to change without notice
Page 1-10
Frequency shift keyed RF
channel for relaying.
CS51/61/71
Frequency Shift Keyed
Power Line Carrier
Application
■ Transfer trip and line relaying
Frequency Shift Keyed
■ CS51/61/71 uses power line medium
■ 4 to 25 ms channel speeds
■ Continuous monitoring
■ Built-in diagnostics
■ Frequency programmable
DESCRIPTION
The CS51/61/71 transmitter-receiver
provides power line carrier protection channels for permissive or direct
transfer trip relaying schemes and
unblocking relaying. It can be either
one-way, or two-way where line protection or breaker failure protection
is required. It can be supplied for
either single or dual channel operation. This frequency shift keyed (FSK)
system operates over power trans-
mission lines in the frequency range
of 30 to 500 kHz. The three different
models available offer different
bandwidths and channel speeds.
As the FSK carrier equipment
requires only a narrow band of frequencies, “single-frequency” line
tuning and traps can usually be
employed in the line-coupling circuits, even when two way dual channels are used. RF hybrid units are
still required to separate closely spaced transmit and receive frequencies.
The CS51/61/71 channels include an optional
logic module which allows the optimum balance between security and dependability. A
unique squelch circuit is included in the
CS61C and CS71C models. Which greately
enhances the security of the channel.
Isolation of all input keying and output circuits provides improved reliability. Shielding
is provided to reduce RFI.
Relay Communication Channels
Page 2-1
Data subject to change without notice
CS-51C, -61C, -71C
Single Function Protection Channels
Frequency-shift Equipment for Relaying
PowerLine Carrier
Relay Communication Channels
Data subject to change without notice
Page 2-2
CS-51C, -61C, -71C
Single Function Protection Channels
Frequency-shift Equipment for Relaying
PowerLine Carrier
Relay Communication Channels
Page 2-3
Data subject to change without notice
CS-51C, -61C, -71C
Single Function Protection Channels
Frequency-shift Equipment for Relaying
PowerLine Carrier
Relay Communication Channels
Data subject to change without notice
Page 2-4
CS-51C, -61C, -71C
Single Function Protection Channels
Frequency-shift Equipment for Relaying
PowerLine Carrier
Relay Communication Channels
Page 2-5
Data subject to change without notice
CS-51C, -61C, -71C
Single Function Protection Channels
Frequency-shift Equipment for Relaying
PowerLine Carrier
Relay Communication Channels
Data subject to change without notice
Page 2-6
CS-51C, -61C, -71C
Single Function Protection Channels
Frequency-shift Equipment for Relaying
PowerLine Carrier
Relay Communication Channels
Page 2-7
Data subject to change without notice
CS-51C, -61C, -71C
Single Function Protection Channels
Frequency-shift Equipment for Relaying
PowerLine Carrier
Relay Communication Channels
Data subject to change without notice
Page 2-8
CS-51C, -61C, -71C
Single Function Protection Channels
Frequency-shift Equipment for Relaying
PowerLine Carrier
Relay Communication Channels
Page 2-9
Data subject to change without notice
CS-51C, -61C, -71C
Single Function Protection Channels
Frequency-shift Equipment for Relaying
PowerLine Carrier
Relay Communication Channels
Data subject to change without notice
Page 2-10
Frequency shift keyed RF
channel for relaying over
a microwave system.
CS22
Frequency Shift Keyed
Analog Microwave Carrier
Application
■ Transfer trip and line relaying
Frequency Shift Keyed
■ CS22 uses microwave baseband
■ 4 to 25 ms channel speeds
■ Continous monitoring
■ Built-in diagnostics
■ Frequency programmable
DESCRIPTION
The CS22 transmitter-receiver provides protection channels for permissive or direct transfer trip relaying schemes and unblocking relaying. It can be either one-way, or twoway where line protection or breaker
failure protection is required. It can
be supplied for either single or dual
channel operation. This frequency
shift keyed (FSK) system operates
over analog microwave systems in
the RF Baseband region. The three
different models available offer different bandwidths and channel
speeds.
The CS22 channels include an
optional logic module which allows
for optimum balance between security and dependability. A unique
squelch circuit is included in the
models. Isolation of all input keying
and output circuits provides
improved reliability. Shielding is provided to reduce RFI.
Relay Communication Channels
Page 3-1
Data subject to change without notice
CS22A
Single Function Protection Channels
Frequency Shift Equipment for Relaying via a Microwave System
Microwave Baseband
Relay Communication Channels
Data subject to change without notice
Page 3-2
CS22A
Single Function Protection Channels
Frequency Shift Equipment for Relaying via a Microwave System
Microwave Baseband
Relay Communication Channels
Page 3-3
Data subject to change without notice
CS22A
Single Function Protection Channels
Frequency Shift Equipment for Relaying via a Microwave System
Microwave Baseband
Relay Communication Channels
Data subject to change without notice
Page 3-4
CS22A
Single Function Protection Channels
Frequency Shift Equipment for Relaying via a Microwave System
Microwave Baseband
Relay Communication Channels
Page 3-5
Data subject to change without notice
Power line carrier protection on-off
channels for relaying with optional
voice communication.
CS28
Keyed Carrier
Power Line Carrier
Application
■ Directional or phase comparison
■ Voice communication
Keyed Carrier
■ CS28A uses power line medium
■ 1.5 to 3 ms channel speeds
■ Narrow band or wide band
■ Automatic checkback
■ Built-in diagnostics
■ Frequency programmable
DESCRIPTION
The CS28A transmitter-receiver provides power line carrier protection
channels for blocking type relaying.
The keyed carrier system operates
over power transmission lines in the
frequency range of 30 to 500 kHz.
The CS28A can be configured as a
wideband channel for use where
relay clearing times are critical, as in
EHV applications, or as a narrowband channel for use where longer
clearing times are permissible, as
with lower voltage lines or when
electromechanical relays are used.
CS28A channels accomplish simultaneous, high speed, and selective tripping by preventing tripping on external faults.
When a protected section is faulted
no carrier signal is transmitted and
both terminals trip simultaneously.
When an external line is faulted, the
carrier signal is transmitted, effectively blocking the non faulted line.
In addition to its relaying function, the
CS28A can be used for voice communication, checkback testing, and low
speed supervisory control or telemetering. Other available modules
include loop test, and an alarm and
level meter module which indicates
reserve signal and RF power levels.
The CS28A comes in a modular package which features a removable glass
viewing door, a compact 3 RU size,
slots for inserting modules, and
sequence of events recording outputs.
Relay Communication Channels
Data subject to change without notice
Page 4-1
CS-28A
Protection Channels
On-Off Equipment for Relaying
PowerLine Carrier
Relay Communication Channels
Page 4-2
Data subject to change without notice
CS-28A
Protection Channels
On-Off Equipment for Relaying
PowerLine
Carrier
Relay Communication Channels
Data subject to change without notice
Page 4-3
CS-28A
Protection Channels
On-Off Equipment for Relaying
PowerLine Carrier
Relay Communication Channels
Page 4-4
Data subject to change without notice
CS-28A
Protection Channels
On-Off Equipment for Relaying
PowerLine Carrier
Relay Communication Channels
Data subject to change without notice
Page 4-5
CS-28A
Protection Channels
On-Off Equipment for Relaying
PowerLine Carrier
Relay Communication Channels
Page 4-6
Data subject to change without notice
CS-28A
Protection Channels
On-Off Equipment for Relaying
PowerLine Carrier
Relay Communication Channels
Data subject to change without notice
Page 4-7
CS-28A
Protection Channels
On-Off Equipment for Relaying
PowerLine Carrier
Relay Communication Channels
Page 4-8
Data subject to change without notice
CS-28A
Protection Channels
On-Off Equipment for Relaying
PowerLine Carrier
Relay Communication Channels
Data subject to change without notice
Page 4-9
CS-28A
Protection Channels
On-Off Equipment for Relaying
PowerLine Carrier
Relay Communication Channels
Page 4-10
Data subject to change without notice
Relay Communications Auxiliary
Equipment.
Typical Test Panel
Transfer-Trip
Manual Test Panels
Application
■ Manual testing of Power Line Carrier
or Audio Tone Channel
Single Channel Bi-Directional
Testing
■ Single or dual channels
■ Uni-Directional
■ Bi-Directional
■ Shared Function
Dual Receiver
DESCRIPTION
These test panels provide the user
with a means to manually check the
integrity of the Relay Communication Channel.
Test switches and indicating lights
show users the status of the channel.
Relay Communication Channels
Data subject to change without notice
Page 5-1
Transfer-Trip Manual Test Panels
Test Equipment and Accessories
Protective Relays
Relay Communication Channels
Page 5-2
Data subject to change without notice
Transfer-Trip Manual Test Panels
Test Equipment and Accessories
Protective Relays
Relay Communication Channels
Data subject to change without notice
Page 5-3
Transfer-Trip Manual Test Panels
Test Equipment and Accessories
Protective Relays
Relay Communication Channels
Page 5-4
Data subject to change without notice
Transfer-Trip Manual Test Panels
Test Equipment and Accessories
Protective Relays
Relay Communication Channels
Data subject to change without notice
Page 5-5
Relay communications systems.
CB30
Cabinets and Racks
Application
■ Complete system provided by the
same manufacturer
■ System responsibility
■ Customized engineering and
drawings
■ Assemblies with doors can be
furnished with “LEXAN” inserts for
viewing lndicating lights, etc.
■ Locking handles are standard
■ Full system testing and back-to-back
tests are provided
■ Customer witness of system testing
is encouraged
Typical swing rack assembly
DESCRIPTION
Trench has a unique capability to offer
a complete Power Line Carrier system,
ranging from Line Coupling equipment to a completely assembled, fully
tested Relay Communication system,
including the associated relays.
The assembly can be housed in a
Swing rack cabinet, a Fixed rack cabinet, or, an Open rack.
A complete assembly can consist of
Primary and Backup Communications
and Relays along with Test Panels,
Switches, Fuses and Indicating Lights.
This complete system, Engineered by
Trench, will be provided with full
Elementary and Wiring Diagrams
along with Instruction Books covering
the complete system.
Factory testing of the system consists
of functional testing along with the
associated test panels. Back-to-back
testing of the communication channels is also provided.
Each of the components in the assembly is wired using type “SIS” switchboard wiring. External wiring connec-
tions to each of the components are
accessible at pre-wired terminal
boards, allowing for efficient on-site
installation. The terminal boards are
conveniently mounted on the rear
wall of swing rack cabinets or on side
panels for fixed and open racks.
The cabinet and racks available for
standard assemblies are noted in the
typical photo shown. The specific
equipment and dimensions are shown
on the subsequent pages.
Relay Communication Channels
Page 6-1
Data subject to change without notice
CB30B
Cabinets and Racks
PowerLine Carrier
Relay Communication Channels
Data subject to change without notice
Page 6-2
CB30B
Cabinets and Racks
PowerLine Carrier
Relay Communication Channels
Page 6-3
Data subject to change without notice
CB30B
Cabinets and Racks
PowerLine Carrier
Relay Communication Channels
Data subject to change without notice
Page 6-4
CB30B
Cabinets and Racks
PowerLine Carrier
Relay Communication Channels
Page 6-5
Data subject to change without notice
CB30B
Cabinets and Racks
PowerLine Carrier
Relay Communication Channels
Data subject to change without notice
Page 6-6
Maintenance Manual
ALL INSTRUCTIONS
All instructions for installation, alignment and maintenance of the products contained in
this brochure are contained on a CD. One CD is shipped with each product.
The CD contains all the information and drawings associated with any model configuration. In addition, the CD can sort the specific text and drawings for the exact model purchased.
A hard copy of this material covering all models is available upon request.
Data subject to change without notice
Trench Facilities
The Trench Group is your
partner of choice for electrical
power transmission and
distribution solutions today;
and for the development
of your new technology
solutions of tomorrow.
Trench® Austria GmbH
Paschinger Strasse 49
Postfach 13
A-4060 Linz-Leonding
Austria
Phone: 43-732-6793-0
Fax: 43-732-671341
Trench® Limited
Instrument Transformer Division
390 Midwest Road
Scarborough, Ontario
Canada M1P 3B5
Phone: 416-751-8570
Fax: 416-751-6952
Trench® Brasil Ltda
Via Expressa de Contagem, 2685
Contagem, Minas Gerais
CEP 32370-485
Brazil
Phone: 55-31-3391-5959
Fax: 55-31-3391-1828
Trench® Limited
Power Line Carrier Division
815 Middlefield Road, Unit 6A
Scarborough, Ontario
Canada M1V 2P9
Phone: 416-291-8544
Fax: 416-291-5581
Trench® China
MWB (Shanghai) Co., Ltd.
No. 3658, Jiancheng Road
Minhang, Shanghai
Peoples Republic of China
200245
Phone: 86-21-54720088
Fax: 86-21-54723118
Trench® France S.A.
16, Rue du Général Cassagnou
B.P. 70 F-68 302
St. Louis, Cedex, France
Phone: 33-3 89-70-2323
Fax: 33-3 89-67-2663
Trench® Shenyang
Trench High Voltage Products Ltd.,
Shenyang
Dao Yi Economic Development Zone
Shenyang 110136
Peoples Republic of China
Phone: 86-24-89725308
Fax: 86-24-89737200
Trench® Limited
Bushing Division
432 Monarch Avenue
Ajax, Ontario
Canada L1S 2G7
Phone: 905-426-2665
Fax: 905-426-2671
Trench® Limited
Coil Product Division
71 Maybrook Drive
Scarborough, Ontario
Canada M1V 4B6
Phone: 416-298-8108
Fax: 416-298-2209
Trench® Germany GmbH
Nürnberger Strasse 199
D-96050 Bamberg, Germany
Phone: 49-951-1803-0
Fax: 49-951-1803-224
Trench® Switzerland AG
Lehenmattstrasse 353
CH-4028
Basel, Switzerland
Phone: 41-61-315-51-11
Fax: 41-61-315-59-00
Trench® (UK) Limited
South Drive
Hebburn, Tyne & Wear
NE 31 1 UW
Phone: 44-191-483-4711
Fax: 44-191-430-0633
Trench® Italia
Strada Curagnata
37 Bragno-Cairo
17014, Italy
Phone: 39-019-5161-111
Fax: 39-019-5161-401
www.trenchgroup.com
E 239.41
Subject to change without notice (11.2007)
Printed in Canada.