Transcript
Communication Networks OPTIF for FOX515/512 IEEE C37.94 communication interface
One of the most important applications used by any power utility is protection of high voltage power lines. Protection relays, which provide the protection functionality for power lines, need to exchange information in order to ensure correct operation. The utility's captive communications network is normally used to provide reliable communications channels for protection applications. Such communications channels demand highest availability and performance figures, especially for differential protection applications which require very low and symmetrical end-to-end delay times. Transmitting protection relay data channels via communication network instead of direct relay connection using dedicated fibres has the big advantage of complete supervision of the data channel and the possibility for redundant channel routing. Beside this it also saves fibres, which are valuable assets. Supervision of the data channel and redundant channel routing allow to significantly increase the availability of protection applications.
The substation environment is usually characterized by a high level of electromagnetic fields caused by high voltages and currents in power lines. Specially during fault conditions the same can rise significantly and disturb communications channels based on copper wires. So it is recommended to use a complete optical interconnection from relay to relay via fibre optical multiplex equipment using the IEEE C37.94 protocol. The IEEE C37.94 standard defines the communication of protection equipment (protections relays) with communications equipment inside a substation using optical fibers. Accordingly no additional extern converters are required anymore. This standard is already implemented by many protection relay manufacturers around the world. ABB’s latest relay series REx670 and the teleprotection equipment NSD570 support this standard as well. The OPTIF module (OPtical Teleprotection InterFace) extends the FOX515/512 platform with IEEE C37.94 interfaces while ensuring compatibility with the traditional ABB SFC protocol used by legacy ABB protection relays.
FOX515 multi-service multiplexer
Applications with OPTIF FOX515 collects all utility specific signals and transmits the same through Wide Area Networks (WAN) using fibre optical or copper interfaces. Therefore the FOX515 provides standard data interfaces and utility specific interfaces such as the OPTIF module which provides up to four ports for differential protection signal transmission. OPTIF architecture The OPTIF is part of a large complement of interface modules which can be plugged into a FOX515 shelf. Like all FOX515 modules OPTIF is – powered from the FOX515 shelf – configured by UCST and – supervised by FOXMAN management system 4 optical ports equipped with SFPs on the front allow individual configuration to support either – ANSI/IEEE C37.94 standard or – ABB’s traditional SFC protocol Additionally an Ethernet port is provided, compatible with DATAx and ETER1/LAWA4 module Symmetric transmission delay Differential protection relays usually calculate the delay times of the data channel by a round trip delay measurement. Therefore asymmetrical delay times can not be detected and lead to the possibility of wrong trips. OPTIF solves this problem by ensuring the same data routing for the transmit and receive paths. In case of redundant channel configuration, OPTIF ensures symmetrical protection switching for differential protection data channels. This ensures equal delay times on transmit and receive paths under all circumstances and therefore avoids the possibility for false tripping of the protection relay due to asymmetrical delay times.
Main features – Fully supporting ANSI/IEEE C37.94 (64 – 768 kbit/s pay load) – 4 ports individually configurable for: – IEEE C37.94 on 850 nm multi mode fiber – ABB’s proprietary SFC protocol on 1,310 nm single-mode fiber – All 4 optical ports using SFPs, supporting multimode and single-mode fibers depending on selected type of interface – 1 Ethernet port configurable as – electrical port 10/100 BaseT (RJ45), or – optical port when equipped with SFP – Transmission delay time: Fully symmetrical bidirectional communication on normal operation and also in protected mode (working and protecting path) – Fully integrated in FOX515/512 platform (1 mechanical slot) For connections based on ABB’s SFC protocol, SFPs for single-mode fibers on 1,310 nm are required. This solution has been successfully implemented for many years in substations around the world together with ABB’s protection relays REL316, REL551, REL561 or teleprotection equipment NSD570 (G1LO-interface). In addition to these four optical dual-use ports, one additional port is added on the module operating as an Ethernet port with optical or electrical interface: – 10/100 BaseT (RJ45), electrical port or optical port when equipped with a suitable SFP Management System The FOX515 with a variety of services are managed centrally by UCST/FOXMAN management system. Utilities save cost and accelerate the circuit provisioning process with only one element manager for all service types.
HV power line
FOX515 with OPTIF module
FOX515 with OPTIF module
Utility communication e.g. STM-1 or STM-4
4x
IEEE RED RED
Substation "A"
All-optical interconnection 2 | OPTIF for FOX515/512
C37.94
4x
Voice
Voice
Data
Data
IEEE C37.94 RED
Substation "B"
Technical data
General Designed for
FOX515/512, P-BUS access
Number of ports
Maximum 4 ports per OPTIF module
Optical ports
All optical ports require SFP for: – 850 nm (multimode) or – 1,310 nm (single-mode)
Operation mode
IEEE C37.94 or ABB TPE
Module width
1 mechanical slot in FOX515
Environmental conditions
According to FOX515 specification
Configuration tool
UCST release R8B SP02 or higher
Maintenance
– Local and remote test loops available – Performance monitoring
Typical 1+1 switchover time
≤ 25 ms
Standard compliance
IEEE C37.94
MTTF
> 60 years
Interfaces Interface type
IEEE C37.94
ABB type
Ethernet
Max port number
4
4
1
Type of port (Connector)
Optical SFP (LC-PC)
Optical SFP (LC-PC)
Electrical RJ45 or optical SFP
Framing complying to
ANSI/IEEE C37.94
ABB SFC protocol
10/100 BaseT or 100 Base-FX
Data transmission
N x 64 kbit/s (N = 1 ... 12) 64 kbits/s – 768 kbit/s or 2,048 kbit/s transparent
N x 64 kbit/s (N = 1 ... 3) [Ch1, Ch2, RemAlm]
N x 64 kbit/s (N = 1 ... 30) or 2,048 kbit/s
Transmission bit rate
2,048 kbit/s optical
4,096 kbit/s optical
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Signal bit rate
2,048 kbit/s (electrical)
2,048 kbit/s (electrical)
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Optical line coding
NRZ
MCMI
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SFP transceivers The optical parameters are subject to the selected SFP transceiver module. The following table shows the characteristics of the SFP transceiver modules approved for these applications: Optical parameters
IEEE C37.94 compliant
ABB SFC protocol
Application example
RED670 NSD570/G1LOa
REL316, REL551, REL561 NSD570/G1LO
Wavelength
850 nm
1,310 nm
Fiber type
Multimode
Single-mode
Optical output power (Tx)
-19 - 11 dBm (62.5μm) -23 - 9 dBm (50μm)
-15 ... -8 dBm
Max allowed optical input power
-3 dBm
-3 dBm
Optical power budget, min
13 dBm (62.5μm) 11 dBm (50μm)
19 dB
Receiver sensitivity
-32 dBm
-34 dBm
Maximum distance (depending on total link attenuation)
2 km
30 ... 50 km OPTIF for FOX515/512 | 3
Type
Despription
Order number
OPTIF
Optical Teleprotection Interface
1KHW001797R0001
SFP
SFP Transceiver 850 nm, multimode
1KHW001871R0005
SFP
SFP Transceiver 1310 nm, single-mode
1KHW001872R0001*
Optical cables: multimode V9YE
Duplex LC to ST, outside cabinet, 10 m
1KHW027541R0100
V9YF
Duplex LC to LC cable, outside cabinet, 10 m
1KHW027542R0100
V9YG
Duplex LC to LC cable, inside cabinet, 2 m
1KHW027543R0020
Optical cable: single-mode V9KZ
Duplex LC - FC/PC cable, outside cabinet, 10 m
1KHW027499R0100
V9KX
Duplex LC - LC cable, outside cabinet, 10 m
1KHW027497R0100
V9KW
Duplex LC - FC/PC cable, inside cabinet, 2 m
1KHW027496R0020
V9KU
Duplex LC - LC cable, inside cabinet, 2 m
1KHW027494R0020
Electric cables: ethernet LAN_1.005
Ethernet 1:1 cable, 3 m
1KHW027456R0030
LAN_X.006
Ethernet crossover cable, 3 m
1KHW027457R0030
* SFP Transceiver modules are also suited for 100 Base-FX Ethernet applications. Other lengths available on request.
ABB SFC IEEE C37.94
3rd party RED 670 NSD570
Fiber pair Optical connector
Max. 4 ports
(up to 2 km) SFP with LC-connector
SDH network
Patch panel
REL316 REL551 REL561
Optical connector
OPTIF
FOX515
FOX6Plus
Relay cabinet
Telecom cabinet
Substation Substation relay & telecom cabinet
For more information please contact: ABB Switzerland Ltd. Power Systems Bruggerstrasse 72 5400 Baden, Switzerland Phone: +41 58 585 77 44 Fax: +41 58 585 55 77 E-Mail:
[email protected] www.abb.com/communicationnetworks
List of abbreviations MCMI
Modified Code Mark Inversion
NRZ
Non Return to Zero
SFC
Secure Frame Concept
SFP
Small Form Pluggable
UCST
Configuration Toll for FOX515/512
1KHA - 001 122 - SEN 1000 - 03.15 - Printed in Switzerland © ABB Switzerland Ltd. May 2015 The right to modifications or deviations due to technical progress is reserved.
OPTIF ordering information
