TRACTION NETWORK MONITORING AND PROTECTION SYSTEM SMTN-B
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TRACTION NETWORK MONITORING AND PROTECTION SYSTEM SMTN-3 CITY ELECTRIC TRANSPORT ■ RAILWAYS ■ METRO ■ INDUSTRY

TRACTION NETWORK MONITORING AND PROTECTION SYSTEM SMTN-3

SMTN-3 is applied in traction substations switchgears: • in city electric transport, • metro, • railways, • industrial enterprises, • mining industry. With increased traffic stream and reduction of rolling stock movement interval arises an ever-greater need for intelligent relay protection devices provided for contact networks protection against overloads and short circuit currents. For these purposes, PLUTON experts developed innovative traction network monitoring and protection system SMTN-3, the third generation of protection devices based on leading-edge technologies. Traction network...

Traction networks protection is provided by monitoring of traction network voltage and current dynamics change. In case of protective functions preset parameters exceed the system issues a command to open high speed circuit breaker. SMTN-3 provides the following operation capabilities: • measurement of traction network voltage and current value and shape in different modes, including short-circuit in line; • protection of traction network against short-circuit currents, including remote short circuits low currents and overloads; • oscillography and long-term memory record of voltage and...

HSCB MEASURING MODULE PROCESSING MODULE ▲ SMTN-3 system modules in assembly with DC switchgear TRACTION NETWORK MONITORING AND PROTECTION SYSTEM S

Measuring module Measuring module is directly connected to voltage and current measurement primary sensors. Current sensor is a resistive element of power circuit (shunt). Voltage sensor is a resistive voltage divider located inside measuring module. It is provided for the measured voltage reduction to the level suitable for further processing in the electronic modules. Main functions: • matching with the primary sensors (shunts, voltage dividers); • galvanic isolation of low voltage circuits from traction network high potential using static power supply unit; • processing of analog input...

SMTN-3 provides smooth and reliable operation of the system, as well as filtering against false tripping. It performs the following protection functions: • instantaneous overcurrent; • overcurrent protection; • current rate of rise protection; • current increment directional protection; • overvoltage protection; • undervoltage protection; • thermal protection; • breaker failure. ADDITIONAL FUNCTIONS Optionally, the system is equipped with the following systems (modules) that extend functional range of the system as a whole: • line tester (short circuits tester); • cable insulation control...

EVENTS AND PARAMETERS LOGGING SMTN-3 generates and stores the following records: • events log; • failures log; • emergency oscillograph records. The records are stored on nonvolatile solid data storage medium, that guarantees high reliability and data storage in case of devices power supply interruption. SMTN-3 system provides generation and storage of emergency oscillograph records. Emergency oscillograph record generation is performed when one of protective functions operates. Two records of emergency oscillograph are generated and saved when one of the protection functions operates: •...

Emergency records can be viewed using Web interface, read by upper level system via Ethernet or saved on external USB-disk for later analysis using a PC. Integration with SCADA systems Remote access to data using Ethernet (ModBus TCP/IP) interface ▲ Access to system data ▲ Parameters setting in Web interface TRACTION NETWORK MONITORING AND PROTECTION SYSTEM SMTN-3

SMTN-3 system provides the following methods of parameters setting, both of the system itself and protection functions parameters: • local “Human Machine" interface based on LCD touch screen; • remote “Human Machine" interface based on Web technologies; • remote access to device using ModBusTCP/IP protocol, for upper level systems and power management systems, etc. Remote “Human Machine" interface based on Web technology is an integrated Web server in each SMTN-3 processing module. It does not require any additional software installation on computer. This interface is used to configure,...

Name of parameter Main parameters Number of current measuring channels Number of voltage measuring channels Type of current sensor Power circuit voltage measuring range Input voltage range for power circuit current measuring channel (DC generated voltage on shunt) Current measuring range where: Ish - shunt rated current; Ush - voltage drop on shunt under rated current. Measured values sampling period Current measuring accuracy, max, of Ish Voltage measuring accuracy, max, of measuring range Insulation strength between measuring module power circuit and power supply circuit, minimum Measured...

Design Protection degree of modules in acc. with DIN VDE 0470 and EN 60529 or IEC 529 Cooling Type of modules mounting Code ANSI Period of data processing by protective functions algorithms Number of settings groups Instantaneous overcurrent Overcurrent protection Current rate of rise protection Current increment directional protection Overvoltage protection Undervoltage protection Thermal protection Breaker failure 50 2 Measuring and logging functions • • • • • • Measured values Number of recorded oscillograms under emergency event** occurrence Emergency oscilligraph records coverage width...

TRACTION NETWORK MONITORING AND PROTECTION SYSTEM SMTN-3

PLUTOn TRACTION NETWORK MONITORING AND PROTECTION SYSTEM SMTN-3

TRACTION NETWORK MONITORING AND PROTECTION SYSTEM SMTN-3

Private Joint Stock Company PLUTON 5 Novostroyek St. Zaporozhye 69076, Ukraine Telephone/Fax: +380 (61) 239-7900 +380 (61) 239-7901 E-mail: info@pluton.ua www.pluton.ua PrJSC PLUTON. All rights reserved Network Traction Monitoring System 1.0-19-engl