제품소개
HOME > 제품소개

SMTN-3
TRACTION NETWORK MONITORING AND PROTECTION SYSTEM SMTN-3
pdf다운로드

TRACTION NETWORK MONITORING AND PROTECTION SYSTEM SMTN-3

Traction networks protection is provided by monitoring of traction network voltage and current dynamics change.
In case of protective function 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 current value and shape under short circuits (one of emergency process protections detection in traction network);
  • waveforms storage and display, as well as data for further analysis transfer to upper level system (or PC);
  • software-based internal configuration setting (protections input, protective characteristics selection, number of protection stages, etc.);
  • local and remote input, storage and display of protection settings;
  • storage of two setting sets and switching of setting sets by external signal;
  • information on the number and time of protections operation storage and output;
  • analysis of current distribution between incoming panels.

PROTECTION FUNCTIONS

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.
MAIN PARAMETERS
Name of parameter Value
* other values – upon request
Main parameters
Number of current measuring channelspc.1
Number of voltage measuring channelspc.1
Type of current sensor Shunt
Power circuit voltage measuring range-2000...+2000*
-8000...+8000*
Input voltage range for power circuit current measuring channel (DC generated voltage on shunt)V-0.5...+0.5
Current measuring range where :
Ish – shunt rated current;
Ush – voltage drop on shunt under rated current
АImax= ± 0.4•Ish/Ush
Measured values sampling periodmks50
Current measuring accuracy, max, of Ish%0.5
Voltage measuring accuracy, max, of measuring range%0.5
Insulation strength between measuring module power circuit and power supply circuit, minimumkV10 (30)*
Measured values
•Current (current channel)
•Voltage (voltage channel)
•Power (calculated)
•Energy (calculated)
•Test current (Line tester channel)
External signals
Number of high speed digital outputspc.5
Digital outputs designationSignals issuing is set individually for each output under one or several protection functions tripping
Number of digital inputs pc.5
Digital inputs designation Set individually for each input :
• HSCB condition control,
• external opening signal,
• timesync.
Power supply
Rated operating voltageV⎓5; 12; 24 ; 48, 110; 220
≂110; 220
SMTN-3 system max consumed power, maxW15
Communication interfaces
Data transfer interface Ethernet
Data transfer protocols WEB technologies ModBus TCP/IP
Reliability
Mean Time Between Failures (MIL-HDBK-217F) hours Ethernet
Total average lifetime (under condition of the required technical maintenance activities provision) hours 25
Design
Protection degree of modules in acc. with DIN VDE 0470 and EN 60529 or IEC 529 IP3X
Cooling natural, air
Type of modules mounting DIN-rail (TH 35, EN 50022)
Protection functions
Code ANSI 50
76
 
 
59
27
49
BF
• Instantaneous overcurrent
• Overcurrent protection
• Current rate of rise protection
• Current increment directional protection
• Overvoltage protection
• Undervoltage protection
• Thermal protection
• Breaker failure
Period of data processing by protective functions algorithms 50
Number of settings groups 2
Local human interaction interfaces LCD touch-screen or LED indication and control element
Operating conditions
Ambient temperature range °C +1...+60
Relative air humidity, under temperature (Upper value) % 60, 20 °C (80, 25 °C)

DC SWITCHGEARS compliant to IEC 61992 / EN 50127 Standards

More information : Brochure on TRACTION NETWORK MONITORING AND PROTECTION SYSTEM SMTN-3