stella-sepcos©cheron developed this control and protection relay with the objective of getting the...

////// TRACTION POWER SYSTEMS

STELLA-SEPCOS

Control & protection relays

STELLA-SEPCOS / COnTrOL & PrOTECTiOn rELAyS2

GENERAL INFORMATIONSEPCOS represents a high-tech equipment which satisfies the most demanding safety requirements applicable to DC traction distribution networks. it is made of a powerful electronic system based on advanced technology (with several microprocessors).

Used as a control and protection unit, SEPCOS integrates the necessary functions for the protection, the control and the measurement of DC traction equipment related to transportation systems (streetcars, underground railways, commuter trains or trolley buses).

SEPCOS is stand alone, modular, extending and easily adaptable by software. it is equipped with a programmable logic unit which allows to freely define the operating logic functions, in order to match the requirements of the unit or the system to supervise.

Moreover, SEPCOS is widely open to modern communication equipment. it delivers network communication or serial line monitoring facilities.

Sécheron is the pioneer in the field of iEC 61850 adapted for DC traction power and has already successfully commissioned many projects worldwide using this standard.

MAIN BENEFITSMAIN BENEFITS D Key strengths = Modularity and adaptability.

D Certified iEC 61850 server level A.

D Full network redundancy implemented according to iEC 62439-3 (PrP/HSr).

D Fully approved in railway substation environment according to iEC 60255-22.

D Conform to PLC standard programming according to iEC 61131-3.

D Application adapted to each project and functionality.

D numerous functions (control, protection and recording).

D External synchronization (nTP).

D Monitoring of analog measurements.

D Simple, user-friendly and modern communication tools.

D High resolution 7” graphic color Display.

D High accuracy and very good noise immunity thanks to a high sampling rate based on high performance 16-bit A/D converter.

STELLA-SEPCOS / COnTrOL & PrOTECTiOn rELAyS 3

MAIN FEATURESSEPCOS is made of several modules - power supply (PWr), processor (CPU), protection (PrO), digital inputs/outputs (DiO) - that can be adapted in order to meet the needs of each customer.

Power module (PWR):- 60-220 VDC (50 W)

- 24-48 VDC (35/50 W)

Control and Processing Unit module (CPU):

Microprocessor VOrTEX86MX

Protection module (PRO):- 4 digital inputs / 3 digital outputs- 4 analog inputs / 1 analog output

Digital Inputs/Outputs module (DIO):

- 16 digital inputs /8 digital outputs

USB ports (A&B):Update and collect of data

Oled display screens:indication of i/O

status and diagnostic (troubleshooting)

Micro-SDcard slot

LVDS outputfor Display

Optical fiber connectors

(the connectors present in this area depend

on the type of CPU module)

Ethernet connectors:- ETH0: PC/Switch

- ETH1: Spare

Watchdog

APPLICATIONSWith many control/command and protection functions, SEPCOS satisfies the needs of DC power traction networks such as outgoing feeder cubicle or rectifier breaker.

SEPCOS is used for monitoring traction network segments and for logging events. it analyses the current gradient and voltages through cyclic measurements at the feeding point of the substation to the catenary. The measurements are made through an electrically isolated transducer (i.e. Sécheron’s VM10/VM12 or MiU10 measuring amplifiers).

User interface S-Web

Control andmonitoring

Touch screen Display

Measuring amplifierMIU10

Measuring amplifierVM10/12

TCP/IP@

High SpeedCircuit Breaker

Current (shuntor hall sensor)

VoltageSCADA

Comm

unication BUS

+

-


ARCHITECTUREAll connections (power supply, analog and digital signals, network, etc.) are placed on the front panel.

The power unit is modular and is chosen according to the input voltage.

Different options are available for the CPU module in order to meet the customer specific needs regarding network, protocols and even redundancy.

SEPCOS can include up to 5 DiO modules.

PWR modulePower Supply

60-220 VDC (50 W)24-48 VDC (35/50 W)

CPU moduleControl/CommandCOMMUNICATION

Ethernet integrated switch

Optional Display

Optical fiber (optional)

PRP/HSR (optional)

ANYBUS (optional)Communications plug-in:

CAN / Modbus-RTU /Profibus-DP / Profinet

PRO moduleProtection

Analog Inputs/OutputsDigital Inputs/Outputs

DIO moduleDigital Inputs/Outputs

DIO module(optional)

1 analog output

Watchdog output

Reset

Serial port (RS485)

Dual Ethernet / Optical fiber

Dual optical fiber / Ethernet

Video output (LVDS)Touch screen

SC

AD

A -

Con

trol

/Com

man

dC

omm

unic

atio

n po

rt

Graphiccolor Display

USB 2.0 - Type A (storage, USB key)

Ethernet port (RJ45)



USB 2.0 - Type B

1 fast output

2 digital outputs

8 digital outputs

8 digital outputs

4 analog inputs

1 emergency input

Auxiliary power supply

3 digital inputs

16 digital inputs

16 digital inputs


PROTECTIONS

• DDL+ Delta i

• DDL+ Delta T

• DDL- Delta i

• DDL- Delta T

• imax+ / imax++

• imax- / imax--

• Umax+ / Umax++

• Umax- / Umax--

• Amp monitoring

• Cable insulation fault

• HSCB maintenance

• incomplete sequence

• Ufeeder Min

• Ufeeder Max

• Track alive

• Falling voltage

• Umin+

• Energy+ / Energy-

• Load transfer

• Thermic

• interrupted arc

• iDMT Level 1

• iDMT Level 2

• iDMT Level 3

LIST OF PROTECTION FUNCTIONS

MAIN FEATURES

RATE OF RISE PROTECTION FUNCTIONS (DI/DT)

• For each detection, 1 set of 3 curves memorized: – current (i), – voltage (U), – di/dt.

• Curve memorized pitch: 200 μs to 5 s.

• Sampling rate: ~ 20 μs per analog input (total = 80 μs).

• Time stamps: 1 ms.

• Availability of the last 5000 events and 1000 curves.

/// DDL+ DELTA T

if the value of the Delta T measured is higher than the parameter Tmax and the value of Delta i measured is higher than the parameter Delta imin, the function declares a detection by DDL+ Delta T and a tripping is initiated.

/// DDL+ DELTA I

if the current rise Delta i measured is higher than the parameter Delta imax during a time higher or equal to the parameter Delta imax, the function declares a detection by DDL+ Delta i and a tripping is initiated. t

i

∆IMax

∆IMin

TMaxE

F

F

i(t)

i(t)

t ∆IMax

DDL+ ∆I detection

DDL+ ∆T detection

OPTIONAL FUNCTION: CABLE INSULATION FAULT

in DC traction applications, power cables built with metal shields must be protected against high touch voltage. This protection must be active when a dangerous contact voltage or a high current appear on the shield in case of insulation fault. The system is designed to detect a leak current either between shield and conductor or between shield and earth. if a fault occurs, actuation of intertripping out signal can be selected. The settings for this function can be adjusted with the S-Web tool.


BUS CONNECTIONSModularity and adaptability are the key strengths of SEPCOS.

Sécheron developed this control and protection relay with the objective of getting the closest match to their clients needs. Sécheron can provide engineering support while elaborating a network regardless the type of communication and its architecture.

SEPCOS is indeed open to all customers networks and protocols.

The bonding feature provides an interesting solution of redundancy network without huge infrastructure. Only one network interface is active while the other is simply waiting for a failure in the link (interface down or unplugged) to the primary network interface card: it will keep the network traffic up and alive.

/// A WIDE CHOICE OF COMMUNICATION BUS

– Modbus-TCP – Modbus-rTU – Profibus-DP – Profinet

/// ETHERNET PROTOCOLS

– iEC 60870-5-104 (-5-101) – iEC 61850, including GOOSE – iEC 62439-3 PrP/HSr – DnP 3.0 (Serial/Ethernet)

/// FLEXIBLE CONNECTIVITY

– Copper cable (rS485, rJ45) – Optical fiber

/// REDUNDANCY

– Dual independent networks – Parallel redundancy Protocol (PrP) /

High Availability Seamless (HSr) – Bonding/Teaming network

BONDING/TEAMING REDUNDANCY STAR NETWORK

SEPCOS with optical fiber

SEPCOS (OpticalFiber) with BONDING


SEPCOS RTU /GATEWAY

LocalScada



IEC 60870-5-104

TO SCADA SYSTEM

DC PANELSAC PANELS

RSTP Backbone


IED SEPCOS with native PRP IED without native PRP

RSTP BackboneRing A

PRPLAN A

PRPLAN B

RSTP BackboneRing B

Local Scada RedBox

Feeder Feeder Feeder UPSBatteryCharger

MediumVoltage

SwitchgearSubstation 1

IED SEPCOS with native PRP IED without native PRP

PRPLAN A

PRPLAN B

Local Scada RedBox

Feeder Feeder Feeder UPSBatteryCharger

MediumVoltage

SwitchgearSubstation 2

RedBox

IEC 60870-5-104

TO SCADA SYSTEM

The source sends the same frame over both networks (LAns). The destination receives it from both LAns within a certain time, consumes the first frame and discards the duplicate.

HSr provides zero recovery time in case of failure of one component. it is suited for applications that demand high availability and very short reaction time that requested for protection of electrical substation.

PRP AND HSR COMBINED REDUNDANCY NETWORK

PRP REDUNDANCY STAR NETWORK

IEC 61850

IEC 61850

IEC 61850

RedBox

RedBox SEPCOSGATEWAY

SEPCOSGATEWAY

LocalScada

RedBox

IEC 61850

RedBox RedBox

IEC 60870-5-104

TO

SCADA SYSTEM

Substation 2

HSR - IEC 62439-3

Substation 1

HSR - IEC 62439-3

PRP - IEC 62439-3


DISPLAY AND USER INTERFACEA user-friendly interface is associated through a high resolution 7” graphic color display, capacitive dual touch screen allowing easy and intuitive navigation.

This device is equipped with 8 LEDs related to dynamic labels (color and text) for the visualization of the state of the PLC (position, type of fault, etc.).

Display allows a complete visualization, control and setting of the equipment and collects the information available from SEPCOS. it includes the modification of SEPCOS parameters (setting protections, command parameters, etc.). Control and configuration actions are protected by password levels.

• Control of the equipment (orders in, OUT, reset, etc.).

• Display of the last 5000 events recorded by SEPCOS and time-stamped.

• Multilingualism (the languages can be adapted on request).

• Different administration modes (root, Admin, PowerUser, Operator and User).

• Backup and export of settings, curves, events or log information on a USB key.

MAIN FEATURES

Status LEDs

Trends

Control orders

Events list

Protection parameters

7” capacitive dual touch screen

Multipurpose LEDs


S-WEB TOOL AND TRENDSThe S-Web tool is an integrated web-server within each SEPCOS. This interface is used to configure, visualize, analyze and retrieve various data. The connection with the S-Web tool is done either through Ethernet cable or Wi-Fi to access through a PC, a tablet computer or a smartphone. The S-Web tool does not require any software installation on a computer, its operation only requires a web browser.

• reading and modification of the protection and command functions settings.

• Collection of data recorded by SEPCOS and download on a PC.

• Upload of information (parameters) from a PC to one or more SEPCOS.

• real-time visualization of analog inputs values, detection results and events.

• Continuous recording of trends and visualization for a given period.

• Display of detection curves (di/dt, U and i) of protection functions.

• Application software upgrade.

The trends of the 4 analog inputs are available for the last 30 days.

All functions of the Display (i.e. opening and closing of the HSCB, switching from “Local” to “remote” mode and inversely, etc.) are available on the S-Web tool.

MAIN FEATURES

Protection curves Events list

Trends (analog values)


ENVIRONMENTAL CONDITIONSEnvironment must comply the following conditions:

/// TRANSPORT AND STORAGE TEMPERATURE

– -40 °C to +85 °C / According to IEC 61992-1; Annex B – -30 °C to +65 °C / According to IEEE Standard C37.90

/// OPERATING TEMPERATURE

– -25 °C to +70 °C / According to IEC 61992-1; Annex B – -20 °C to +55 °C / According to IEEE Standard C37.90

/// MAXIMUM RELATIVE HUMIDITY (WITHOUT CONDENSATION)

– 93% at 55 °C / According to IEC 60068-2-30 Db test V2

/// ALTITUDE

– < 3’000 m (= 700 mbar) / According to RTCA D0160F section 4

INTEGRATION IN A CUBICLE


MECHANICAL FEATURES

SEPCOS

The modules are integrated in aluminium frames.

Electrical connections are located behind front flaps of the housing in order to be protected.

60 mm

124 mm

133

mm

*

23 mm

OPTIONAL DISPLAY

Protection degree: iP40 / iK05.

216.5 mm

135

mm

29 mm

* The total width of a SEPCOS depends on the number of modules. The width of one module is 60 mm.

STANDARDS

D Fully approved in railway substation environment / According to IEC 60255-22

D EMC testing / According to IEC 60255-22

D Voltage and insulation withstand tests / According to IEC 60255-5

D Development / According to IEC 62278, IEC 62279 and IEC 62425

D Conform to PLC standard programming / According to IEC 61131-3

D Communication / According to IEC 61850 server level A (KEMA)

D Environmental testing: – Cold storage test and cooling test / According to IEC 60068-2-1 – Hot storage test and dry heat test / According to IEC 60068-2-2 – Damp heat test / According to IEC 60068-2-30 – Salt mist / According to IEC 60068-2-52 – Altitude test / According to RTCA D0160F section 4

D Vibrations, shock and bump test: – Vibration test / According to IEC 60255-21-1 – Shock test / According to IEC 60255-21-2 – Bump test / According to IEC 60255-21-3 – Seismic test / According to IEC 60980

D roHS compliant

Sécheron SA

Rue du Pré-Bouvier 251242 Satigny - Geneva

CH-Switzerland

www.secheron.com

Tel: +41 (0)22 739 41 11Fax: +41 (0)22 739 48 [email protected]

This document is not contractual and contains information corresponding to the level of technology at the date of printing. Sécheron reserves the right to modify and/or improve the product, whose characteristics are described in these documents, as required by new technology at any time. It is the purchaser’s responsibility to inform himself, no matter what the circumstances, of

the product’s maintenance conditions and requirements. Sécheron reserves all rights, especially those arising from our “General Delivery Conditions”.

Copyright© 2018 Sécheron SA

SG825866BEn_D01-09.18

stella-sepcos©cheron developed this control and protection relay with the objective of getting the...

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