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UTX3.3

UTX3.3 is a universal server unit, equipped with two sets of Ethernet ports, and can work in parallel with the S-bus (system bus) and the P-bus (process bus). VLAN, RSTP and PRP redundancy protocols are available as standard.
The S-bus network is dedicated to communication with SCADA (MMS) and the implementation of fast inter-field automations (GOOSE).
The P-bus process network allows cooperation with MTXvA and/or MTXvD merging units (SV according to IEC 61850-9-2LE and GOOSE according to IEC61850-8-1). UTX3.3 supports up to four SV streams and up to 128 GOOSE objects simultaneously.
Device clock synchronization is based on the timestamp read from the NTP server.

UTX3.3
UTX3.3 - Image 2
UTX3.3 - Image 3
UTX3.3 - Image 4

UTX3.3

Product total
Options total
Grand total

Other Versions:

UTX3.2

Depending on the purpose of the device, appropriate program packages are pre-installed in UTX3.3, implementing protection functions for comprehensive protection of HV, MV and ARN (automatic transformer voltage regulation) and SZR (automatic reserve switching) bays.

List of available functions:

  • multi-processor digital measurement and decision-making system with four groups of protection settings;
  • galvanic separation of individual inputs and outputs (analog and digital);
  • 87LP – segment residual current stage;
  • 85/77/27WI – unified teleprotection interface, with “weak” power supply logic and “echo” function;
  • 21/21N – six-zone, rectangular, underimpedance operating characteristic with independent settings for both: R and X (for phase-to-phase short circuits with “undercut” characteristics (RD and XD)) and RE and XE (for earth faults);
  • programmable direction for each zone and programmable angular area of operation of the under-impedance characteristics;
  • distance stage excitation type: under-impedance (from the 6th zone) and/or overcurrent;
  • voltage memory for determining the direction of close faults;
  • parallel track support for distance protection;
  • protection delay times. They can be set independently for phase-to-phase and earth faults in each zone and for each type of additional protection functions (e.g. I>; U<);
  • ability of each zone or other protection stages to act on a signal (activation report);
  • voltage transmission fuse failure indication;
  • 11 – protection function of switching off the line when switching on a short circuit;
  • 79(3)(1) – single-phase (ZRP/8A, ZRP/8E) and/or three-phase, four-step, six-program AR automatic control for any function: protection or logic. The automatic recloser can be activated internally or externally. Handling developing faults. Single and/or three-phase switching;
  • 21FL – precise fault location locator;
  • 33 – bay controller function with presentation of the bay status on a graphic display with support for 15 fully programmable switches;
  • possibility of linking to the “link” both each protection function and the auto-reclosure automation;
  • 25/32 – automatic line switching on and blocking of line shutdown in the event of power swings (power swing detector) (ZRP/8, ZRP/8A, ZRP/8E);
  • 50/51/51A – three-phase, two-stage overcurrent-time protection: (I>T and I>>T) with different time characteristics;
  • 50H/51H(2) – second harmonic detector of phase currents,
  • 49– thermal model (two stages, option),
  • 67N – two-stage, directional earth-fault protection: (IEk1>T and IEk2>T) with rectangular and cosinusoidal angular characteristics and various time characteristics;
  • 50N/51N – non-directional earth-fault protection with different time characteristics;
  • 50BF/51BF – LRW circuit breaker reserve system (programmable current and time conditions);
  • handling external emergency shutdown requests (trip with short circuit report and LRW support);
  • 74/74TC – station signaling functions UP, AL, AW;
  • programmable threshold for signaling the loss of phase voltages;
  • constant control of the continuity of circuit breaker tripping circuits;
  • 27/59 – under- and overvoltage stages;
  • 46/47 – signaling of current and voltage asymmetry;
  • functions of “cooperation” with the switch, along with its remote control;
  • 32 logical functions with programmable modifiers to implement simple and complex algorithms;
  • detailed reporting of the short-circuit clearing process, i.e.: event registration and disturbance recording (4 (3) voltages, 4 (3) currents and 16 digital channels with a sampling time of 1 ms) with the possibility of internal or external activation of the recorder; binary inputs provide a chronological record of protection operation and tripping;
  • time synchronization and synchronous sampling of analog inputs;
  • possibility of summing the values of short-circuit currents switched off by the circuit breaker;
  • power measurement, energy meters (four-quadrant) (ZRP/8, ZRP/8A, ZRP/8E);
  • WZ shutdown counters and device operating times;
  • graphic display and 11-button keyboard and 16 LEDs (15 freely programmable);
  • reading of measurement values and a conclusion report on the display with their transmission to the superior system;
  • permanent control of the device’s internal systems;
  • three levels of password-protected permissions;
  • possibility of visualization, control and configuration via the SAZ 2000 program;
  • possibility of cooperation with the Automatic Over Ethernet (AoE) station automation system and the Alice’79 system;
  • 85 – possibility of implementing automation between stations using the TRBus transmission channel (signal transmission, among others, for the universal teleprotection interface).
  • multi-processor digital measurement and decision-making system with four groups of protection settings;
    galvanic separation of individual inputs and outputs (analog and digital);
  • 85/77/27WI – in option with a unified teleprotection interface, with “weak” power supply logic and “echo” function;
  • 21/21N – six-zone, rectangular, underimpedance operating characteristic, with independent settings for both: R and X (for phase-to-phase short circuits with “undercut” characteristics (RD and XD)) and: RE and XE (for earth faults);
  • programmable direction for each zone and programmable angular area of operation of the under-impedance characteristics;
    distance stage excitation type: under-impedance (from the 6th zone) and/or overcurrent;
  • voltage memory for determining the direction of close faults;
  • parallel track support for distance protection;
  • protection operation delay times – They can be set independently for phase-to-phase and earth faults in each zone and for each type of additional protection functions (e.g. I>; U<);
  • ability of each zone or other protection stages to act on a signal (activation report);
  • voltage transmission fuse failure indication;
  • 11 – protection function of switching off the line when switching on a short circuit;
  • 79(3)(1) – single-phase (Z/8A, Z/8E) and/or three-phase, four-step, six-program AR automatic for any function: protection or logic. The automatic recloser can be activated internally or externally. Handling developing faults. Single and/or three-phase switching;
  • 21FL – precise fault location locator;
  • 33 – bay controller function with presentation of the bay status on a graphic display with support for 15 fully programmable switches;
  • as an option, it is possible to link to the “link” both each protection function and the auto-reclosure automation;
  • 25/32 – automatic line switching on and blocking of line shutdown in the event of power swings (power swing detector) (Z/8, Z/8A, Z/8E);
  • 50/ 51/51A – three-phase, two-stage overcurrent-time protection: (I>T and I>>T) with different time characteristics;
  • 50H/51H(2) – second harmonic detector of phase currents,
  • 49 – thermal model (two stages, option),
  • 67N – two-stage, directional earth-fault protection: (IEk1>T and IEk2>T) with rectangular and cosinusoidal angular characteristics and various time characteristics;
  • 50N/51N – non-directional earth-fault protection with different time characteristics;
  • 50BF/51BF – LRW circuit breaker reserve system (programmable current and time conditions);
  • handling external emergency shutdown requests (trip with short circuit report and LRW support);
  • 74/74TC – station signaling functions UP, AL, AW;
  • programmable threshold for signaling the loss of phase voltages;
  • constant control of the continuity of circuit breaker tripping circuits;
  • 27/59 – under- and over-voltage stages;
  • 46/47 – signaling of current and voltage asymmetry;
  • “cooperation” functions with the switch and its remote control;
  • 32 logical functions with programmable modifiers to implement simple and complex algorithms;
    detailed reporting of the short-circuit clearing process, i.e.: event registration and disturbance recording (4 (3) voltages, 4 (3) currents and 16 digital channels with a sampling time of 1 ms) with the possibility of internal or external activation of the recorder; binary inputs provide a chronological record of protection operation and tripping;
  • time synchronization and synchronous sampling of analog inputs;
  • possibility of summing the values of short-circuit currents switched off by the circuit breaker;
  • power measurement, energy meters (four-quadrant) (Z/8, Z/8A, Z/8E);
  • WZ shutdown counters and device operating times;
  • graphic display and 11-button keyboard and 16 LEDs (15 freely programmable);
  • reading of measurement values and a conclusion report on the display with their transmission to the superior system;
  • permanent control of the device’s internal systems;
  • three password-protected permission levels;
  • possibility of visualization, control and configuration via the SAZ 2000 program;
  • possibility of cooperation with the Automatic Over Ethernet (AoE) station automation system and the Alice’79 system;
  • 85 – possibility of implementing automation between stations using the TRBus transmission channel (option).
  • a multi-processor digital measurement and decision-making system with four groups of protection setting groups;
  • galvanic separation of individual inputs and outputs (analog and digital);
  • 87LP – section residual current stage;
  • 85/77/27WI – unified teleprotection interface, with “weak” power supply logic and “echo” function;
  • 11 – protection function of switching off the line when switching on a short circuit;
  • 79(3)(1) – single-phase (RP/8A, RP/8E) and/or three-phase, four-step, six-program AR automatic for any function: protection or logic. The automatic recloser can be activated internally or externally. Handling developing faults. Single and/or three-phase switching;
  • 21FL – precise fault location locator (option for RP/8, RP/8A, RP/8E);
  • 33 – bay controller function with presentation of the bay status on a graphic display with support for 15 fully programmable switches;
  • the possibility of linking to the “link” both each protection function and the auto-reclosure automation;
  • 25/32 – automatic line switching on and blocking of line shutdown in the event of power swings (power swing detector) (RP/8, RP/8A, RP/8E);
  • 50/ 51/51A – three-phase, two-stage overcurrent-time protection: (I>T and I>>T) with different time characteristics;
  • 50H/51H(2) – second harmonic detector of phase currents,
  • 49 – thermal model (two stages, option),
  • 67N – two-stage, directional earth-fault protection: (IEk1>T and IEk2>T) with rectangular and cosinusoidal angular characteristics and various time characteristics;
  • 50N/51N – non-directional earth-fault protection with different time characteristics;
  • 50BF/51BF – LRW breaker reserve system (programmable current and time conditions);
  • handling external emergency shutdown requests (trip with short circuit report and LRW support);
  • 74/74TC – UP, AL, AW station signaling functions;
  • constant control of the continuity of circuit breaker tripping circuits;
  • 46/47 – signaling of current asymmetry;
  • “cooperation” functions with the switch, along with its remote control;
  • 32 logical functions with programmable modifiers to implement simple and complex algorithms;
  • detailed reporting of the short-circuit clearance process, i.e.: event registration and disturbance recording (3 (1) voltages, 4 (3) currents and 16 digital channels with a sampling time of 1 ms) with the possibility of internal or external activation of the recorder; 
  • binary inputs provide a chronological record of protection operation and tripping;
  • time synchronization and synchronous sampling of analog inputs;
  • possibility of summing the values of short-circuit currents switched off by the circuit breaker;
  • power measurement, energy meters (four-quadrant) (RP/8, RP/8A, RP/8E);
  • WZ shutdown counters and device operating times;
  • graphic display and 11-button keyboard and 16 LEDs (15 freely programmable);
  • reading the measurement values and the conclusion report on the display and transmitting them to the superior system;
  • permanent control of the device’s internal systems;
  • three levels of password-protected permissions;
  • possibility of visualization, control and configuration via the SAZ 2000 program;
  • possibility of cooperation with the Automatic Over Ethernet (AoE) station automation system and the Alice’79 system;
  • 85 – possibility of implementing automation between stations using the TRBus transmission channel (signal transmission, among others, for the universal teleprotection interface).
  • a multi-processor digital measurement and decision-making system with four groups of protection settings;
  • galvanic separation of individual inputs and outputs (analog and digital);
  • 85/77/27WI – optionally with a unified teleprotection interface, with “weak” power supply logic and “echo” function;
  • 21/21N – six-zone, rectangular, underimpedance operating characteristic, with independent settings for both: R and X (for phase-to-phase short circuits with undercutting of the characteristics (RD and XD)) and: RE and XE (for earth faults);
  • 11 – protection function of switching off the line when switching on a short circuit;
  • 79(3)(1) – single-phase (D/8A, D/8E) and/or three-phase, four-step, six-program AR automatic for any function: protection or logic. The automatic recloser can be activated internally or externally. Handling developing faults. Single and/or three-phase switching;
  • 21FL – precise fault location locator (option for D/8, D/8A, D/8E);
  • 33 – bay controller function with presentation of the bay status on a graphic display with support for 15 fully programmable switches;
  • optionally, it is possible to link to the “link” both each protection function and the auto-reclosure automation;
  • 25/32 – automatic line switching on and blocking of line shutdown in the event of power swings (power swing detector) (D/8, D/8A, D/8E);
  • 50/51/51A – three-phase, two-stage overcurrent-time protection: (I>T and I>>T) with different time characteristics;
  • 50H/51H(2) – second harmonic detector of phase currents,
  • 49 – thermal model (two stages, option),
  • 67N – two-stage, directional earth-fault protection: (IEk1>T and IEk2>T) with rectangular and cosinusoidal angular characteristics and various time characteristics;
  • 50N/51N – non-directional earth-fault protection with different time characteristics;
  • 50BF/51BF – LRW breaker reserve system (programmable current and time conditions);
  • handling external emergency shutdown requests (trip with short circuit report and LRW support);
  • 74/74TC – UP, AL, AW station signaling functions;
  • constant control of the continuity of circuit breaker tripping circuits;
  • 27/59 – under- and over-voltage stages;
    46/47 – signaling of current and voltage asymmetry;
  • “cooperation” functions with the switch, along with its remote control;
  • 32 logical functions with programmable modifiers to implement simple and complex algorithms;
  • detailed reporting of the short-circuit clearance process, i.e. event registration and disturbance recording (4 (1) voltages, 4 (3) currents and 16 digital channels with a sampling time of 1 ms) with the possibility of internal or external activation of the recorder; 
  • binary inputs provide a chronological record of protection operation and tripping;
  • time synchronization and synchronous sampling of analog inputs;
  • possibility of summing the values of short-circuit currents switched off by the circuit breaker;
  • power measurement, energy meters (four-quadrant) (D/8, D/8A);
  • WZ shutdown counters and device operating times;
  • graphic display and 11-button keyboard and 16 LEDs (15 freely programmable);
  • reading the measurement values and the conclusion report on the display and transmitting them to the superior system;
  • permanent control of the device’s internal systems;
  • three levels of password-protected permissions;
  • possibility of visualization, control and configuration via the SAZ 2000 program;
  • possibility of cooperation with the Automatic Over Ethernet (AoE) station automation system and the Alice’79 system;
  • 85 – possibility of implementing automation between stations using the TRBus transmission channel (option)
  • a multi-processor digital measurement and decision-making system with three groups of protection settings;
  • galvanic separation of individual inputs and outputs (analog and digital);
  • 87T – a differential-current transformer stage with freely configurable stabilization characteristics;
  • 50H/51H(2) – detector of the second harmonic of residual currents;
  • 50H/51H(5) – fifth harmonic detector of residual currents;
  • 50/51/51A/67 – four non-directional phase overcurrent stages, individually configurable, which sides apply to (4 x I>);
  • 50BF/51BF – LRW circuit breaker reserve system for each side;
  • 74 – station signaling functions UP, AL, AW;
  • 30/74 – possibility of connecting external protection devices to binary inputs;
  • 33 – bay controller function with presentation of the bay status on a graphic display with support for 15 fully programmable switches;
  • possibility of the stage acting on a signal (activation report);
  • permanent control of the correctness of the terminal’s internal systems;
  • three levels of password-protected permissions;
  • event registration and disturbance registration (11, 15, 19 currents and 16 digital channels);
  • function of synchronous sampling of analog inputs, time synchronization and real-time clock;
  • measurement of quantities – I, dI, Ih and visualization on the controller display with the possibility of transmitting them to the system;
  • shutdown counters, device operating times;
  • detailed reporting of the fault clearing process displayed on the display and transmitted to the system;
  • graphic display and 11-button keyboard and 16 LEDs (15 freely programmable);
  • 8 logical functions with programmable modifiers for implementing simple and complex algorithms;
  • possibility of visualization, control and configuration via the SAZ 2000 program;
  • possibility of cooperation with the Automatic Over Ethernet (AoE) station automation system and the Alice`79 system.
  • multi-processor digital measurement and decision-making system with three groups of protection settings;
  • galvanic separation of individual inputs and outputs (analog and digital);
  • 50/51/51A/67 – four phase overcurrent stages, directional or non-directional (4 x I>);
  • 59 – two phase overvoltage stages (2 x U>);
  • 27 – two phase undervoltage stages (2 x U<);
  • 32 – one power feedback stage (P>);
  • 32VAR – one stage of reactive power compensation (Q<>,tg<>);
  • 50N/51N – three non-directional earth overcurrent stages (3 x Io>);
  • 59N – three earth overvoltage stages (3 x Uo);
  • 67N – two directional earth overcurrent stages (2 x Iok>);
  • 21N – one ground admittance stage (RYo, RBo, RGo);
  • 21N – one incremental admittance earth stage (RYYo);
  • 50/51 – two non-directional overcurrent stages against internal short circuits (2 x Ig>);
  • 46/47 – current and voltage asymmetry;
  • 50H/51H(2) – second harmonic phase current detector;
  • 50/51 – implementation of simplified ZS bus protection;
  • 50BF/51BF – fully programmable LRW circuit breaker reserve system;
  • 81L/81H – four SCO internal stages and two SPZ/SCO (4 x SCO, 2 x SPZ/SCO);
  • four external stages SCO and SPZ/SCO (4 x SCO, 4 x SPZ/SCO);
  • 79N – AWSCz automation;
  • 79C/86 – ABK automation;
  • 79(3) – four-step, six-program AR automatic for any protection or logic function;
  • 74 – station signaling functions UP, AL, AW;
  • 30/74 – possibility of connecting external protection devices to binary inputs;
  • 11 – protection function of switching off the line when switching on a short circuit;
  • 33 – bay controller function with presentation of the bay status on a graphic display with support for 15 fully programmable switches;
  • ability of each stage to act on a signal (activation report);
  • vector stabilization and intermittent fault compensation for precise and selective fault determination;
  • permanent control of the correctness of the terminal’s internal systems;
  • three password-protected permission levels;
  • event registration and disturbance registration (4 voltages, 4 currents and 16 digital channels);
  • function of synchronous sampling of analog inputs, time synchronization and real-time clock;
  • constant control of the continuity of the circuits that turn off and/or turn on the circuit breaker;
  • cooperation system with a switch (control of continuity, charging and anti-pump interlocks) and remote control;
  • measurement of quantities – I, U, S, P, Q, f, Ep, Eq and visualization on the controller display with the possibility of transmitting them to the system;
  • WZ trip counters, device operating times and the function of summing the currents switched off by the switch;
  • detailed reporting of the fault clearing process on the display and transmission to the system;
  • graphic display and 11-button keyboard and 16 LEDs (15 freely programmable);
  • four-quadrant electricity meters;
  • 32 logical functions with programmable modifiers to implement simple and complex algorithms;
  • possibility of visualization, control and configuration via the SAZ 2000 program.
  • a multi-processor digital measurement and decision-making system with three groups of protection settings;
    galvanic separation of individual inputs and outputs (analog and digital);
  • 59 – eight overvoltage stages, one for each voltage group, with the possibility of individually setting the logic, voltage and time settings (8 x U>);
  • 27 – eight undervoltage stages, one for each voltage group, with the possibility of individually setting the logic, voltage and time settings (8 x U<);
  • ability to set the name, gear ratio and voltage type for each group independently;
  • possibility of setting up to 8 operating systems with programmable names recognized by the machine;
  • possibility of setting up to 50 different, fully programmable and independent cycles;
  • possibility of setting up to 10 excitation conditions for each program determining the states of the switches, the states of the voltage elements and the PZ control;
  • possibility of setting up to 10 steps for each program enabling control of any switch, control of the status of any switch and control of the status of any voltage component;
  • the possibility of a programmable name, default and current state of the system, programmable cycle duration, return from an unsuccessful cycle, ignoring the lock on activation and the type of lock after the cycle for each program;
  • the ability to automatically detect the reserve type or declare a dedicated type;
  • monitoring the readiness and position of circuit breakers;
  • functions of remote or local control of PSS cycles and locking and unlocking the machine;
  • accurate and detailed signaling of machine errors and blockages locally and remotely;
  • 74 – UP, AL station signaling functions;
  • 30/74 – possibility of connecting external protection devices to binary inputs;
  • 33 – bay controller function with presentation of the bay status on a graphic display with support for 15 fully programmable switches;
  • permanent control of the correctness of the terminal’s internal systems;
  • three levels of password-protected permissions;
  • event registration and disturbance registration (8 voltages and 16 digital channels);
  • function of synchronous sampling of analog inputs, time synchronization and real-time clock;
  • measurement of the quantity – U and visualization on the controller display with the possibility of transmitting them to the system;
  • switching counters and device operating times;
  • detailed reporting of the switching progress displayed on the display and transmitted to the system;
  • graphic display and 11-button keyboard and 16 LEDs (15 freely programmable);
  • 32 logical functions with programmable modifiers to implement simple and complex algorithms;
  • possibility of visualization, control and configuration via the SAZ 2000 program.
  • multi-processor digital measurement and decision-making system with 5 groups of protection settings (4 configurable + 1 set of factory settings),
    completely digital information processing,
  • work with two- and three-winding transformers or compensation coil,
  • work in automatic and manual mode,
  • extensive logical functions with programmable functors,
  • four regulation modes in RNT mode:
    based on the voltage of the U1 circuit,
    based on the voltage of the U2 circuit,
    based on the average value of voltages U1 and U2,
    based on the maximum value (U1,U2),
  • two regulation modes in RNTQ mode:
    based on the tan value of circuit 1,
    based on the reactive power value of circuit 1,
  • operating mode of the voltage regulator for RNT-T railway traction,
  • year-round calendar enabling free change of the set voltage level,
  • galvanic separation of analog and binary inputs and outputs,
  • XR and Z type compensation set independently for individual measurement circuits,
  • tap changer motor overcurrent protection,
  • power quality control system,
  • tap changer remote control function,
  • reporting work progress using event and disturbance recorders,
  • 4.3” color graphic display, 11-button keyboard and 16 LEDs (15 freely programmable),
  • 32 logical functions with programmable modifiers to implement simple and complex algorithms,
  • 16 simple inputs/outputs,
  • logical matrix,
  • reading of measurement values on the display and their transmission to the superior system,
  • ability to simultaneously support IEC 870-5-103, CC-Bus and IEC 61850 protocols,
  • switching and device operating time counters,
  • permanent control of the device’s internal systems,
  • three password-protected permission levels,
  • possibility of visualization, control and configuration via the SAZ 2000 program,
  • possibility of cooperation with the Automatic Over Ethernet (AoE) station automation system and GOOSE signals,
  • communication in the IEC 61850 protocol (Fast Ethernet MAC/PHY IEEE802.3x, QoS IEEE802.1p, VLAN IEEE802.1Q, SNTP, TCP/IP) and an additional RedBox option extending with: (1xIEEE802.3, 2xIEEEE802.3, IEEE62439-3 PRP/HSR, IEEE1588v1 v2 PTP),
  • communication in the DiffChannel TRbus protocol – optionally – via the OPTO interface (single-mode) for communication with the second half-set of UTXvRP protection,
  • communication in the IEC 870-5-103 protocol – optional – via the OPTO interface (multi-mode),
  • communication in the PPM2 CANBUS protocol – optional – via interfaces: 2xCAN,

Characteristics of the UTX Series​

  • galvanic separation of individual inputs and outputs (analog current and digital binary),
  • permanent control of the correctness of the terminal’s internal systems,
  • three password-protected permission levels,
  • measurement of quantities – I, U, S, P, Q, f, Ep, Eq and visualization on the controller display with the possibility of transmitting them to the system,
  • 4.3” color graphic display and 11-button keyboard and 16 LEDs (15 freely programmable),
  • possibility of visualization, control and configuration via the SAZ2000 software,
  • time synchronization using the NTP protocol,
  • 1PPS optical input enabling precise synchronization of the internal clock
  • reception of up to 4 SV sample streams from the P-bus (process bus) in accordance with IEC61850-9-2LE,
  • support for up to 128 GOOSE messages in accordance with the IEC 61850-8-1 standard over the S-bus (system bus) and P-bus (process bus) with the ability to create logic for inputs and outputs using fast and powerful hybrid relays,
  • communication in the IEC 870-5-103 protocol – optionally – via the OPTO interface (multi-mode),
  • communication in the PPM2 CANBUS protocol – optional – via interfaces: 2xCAN,

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