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500kW extension of 1MW Fuel Save system in Africa with remote commissioning
  • Industry
    Energetics



  • Construction period:
    2017
  • Documents:

500kW Extension of 1MW to reach desired peak power of 1.5MW
This is an extension of the original FUEL SAVE system from 2015. Both FUEL SAVE systems (containers) are interconnected to the main circuit breaker to connect the PV input in the substation. The communication is done by the communication link between control cabinets (DT1, DT2) in both containers. COMAP InteliGen NT control systems for the control of diesel generators in the substation are interconnected on the communication bus to the InternetBridge-NT communication module, which is connected to the control system in the DT1 switchgear over Ethernet. Through the InternetBridge-NT module, it is possible to visualize the parameters of each connected GENSET and to set them remotely.
Supplied solution:
Installed power of PV array: FPV=499,2kWp
4 pcs of FOTO CONTROL 3f 290/125
Technical solution
Technical drawings and documentation for PV panels connections, string boxes, inverters, main circuit breakers, control system enclosure and the grid connection power switchbox
Installation to 20ft shipping container
Software works, upgrade to visualization
Testing of the whole system
Remote commissioning, diagnostics
1MW Fuel Save PV power plant - Africa
  • Industry
    Energetics
  • Investor:
    go-pure.eu



  • Construction period:
    2015-2016
Fuel save system for diesel gensets
Fuel save system is installed in autonomous grid systems in remote area. Main source of energy are diesel gensets. To reduce the high fuel costs, a PV power plant has been built. PV power plant is very suitable and economically viable, because it is a very sunny region. To enable safe and reliable operation with the gensets, a special inverter software and control system have been designed.
Supplied solution:
8 x Foto Control 3f 290/125 inverter
Technical solution
Project and drawings for: Panel connection, string boxes, inverters, deion switchgear,
main control system enclosure
All in one ship container
Special software
Commissioning of the project
Special solution of port crane lift and turn
  • Industry
    Other
  • Investor:
    Slovak nautics
  • Port crane
  • Invested capital:
    1,3 mil. Sk
  • Construction period:
    2006
Port crane double-lift 2 x 100kW (grab and hoist), turning of crane
Supplied solution:
frequency converts:
VQFREM 400 160
VQFREM 400 090
VQFREM 400 075
VQFREM 400 030
braking modules
braking resistors
gear box
special software solution of double lift
MASTER SLAVE control with setting motor moment
Small hydro-power plant 90 kW Čoltovo
  • Industry
    Energetics
  • Investor:
    KRAFT s.r.o.
  • MVE Čoltovo, turbine
    MVE Čoltovo, transformer+enclosure
    MVE Čoltovo, overview and bridge
  • Construction period:
    2015-2016
Drive of screw turbine small hydropower plant with backup power of locks DC drives
The device can supply the electricity to the grid even during a minimum flow of water, with high quality of current: (cos φ = -1, the current THD 5%). The device is equipped with an emergency electro-hydraulic. The generator is connected to the screw turbine via a gear. The level of the water is detected by an ultrasonic level sensor and locks level are automatically controlled by DC drives. DC drives have backup power from a battery that is recharged by FOTO CHARGER DC 48 charger. Automatic control system is provided by the control system. The system evaluates generator bearing temperature, transmission oil temperature, bearing temperature turbine position locks using limit switches, water level of the river. The entire system is monitored remotely via eWON industrial router.
Supplied solution:
Technical solution
Project documentation + RM-MVE
MVE CONTROL
Montage
Special software modification
Commissioning

Suspended mining locomotive for areas with an explosive atmosphere
  • Industry
    Mining
  • suspended mining locomotive
    suspended mining locomotive
Suspended mining locomotive for areas with an explosive atmosphere
Supplied solution:
A comprehensive solution of mining electrical suspended locomotives.
Mining locomotive is designed for the carriage of the train set on suspended monorail track in the horizontal plane and shifted to 30 degrees.
Powered axles: 4x2 because 6x2 (by type locomotives) Battery: 375Ah with Un = 352V, ATEX version

Included in delivery:
project
4x (6x) drives and the main enclosure, ATEX version
Each contains two inverters to control 2 pcs of 7.5 kW motors
1 enclosure for auxiliary drives ATEX version (inverters for AM hydraulics and cooling)
Communicatiion with control system
Battery charger
Mining trolley locomotive EE90K
  • Industry
    Mining



  • Construction period:
    2017
Complete solutions of electronics for electric mining locomotive EE-90K
Comprehensive solution for the mining traction locomotive electronics. For the main drives, the SEMIKRON SEMiX equipped inverters are based on the proven UNIFREM platform. For each locomotive drive, unique torque-speed vector control is used - the joystick on the control panel in the locomotive cabin is not only the speed reference, but also the torque reference. The torque between the individual drives is intelligently electronically balanced for the smooth operation of the locomotive. The locomotive control system is based on the SIMATIC S7-1200 system, it has a color display.
Supplied solution:
Technical solution
Project documentation in Slovak and Russian language
Control system
Traction drives – 2x UNIFREM 230 250 inverters
Braking unit
Auxiliary drives (hydraulics, ventilation) 2x UNIFREM 230 002M
Montage
Cabling
Commissioning, testing
Singe phase artificial AC mains AN 1F 120V AC, AN 1F 230V AC
  • Industry
    Mechanical engineering

  • Construction period:
    2013
Single phase electric generators of desired output voltage with selectable 60 Hz / 50 Hz frequency.
Single phase AC output voltage is sensed by special measuring circuit which is connected as a feedback to the control circuit, the output voltage is then respected regardless of the load value. Desired voltage generated at the output artificial AC mains network is tuned by potentiometer within a specified range. AC output voltage, current and frequency is displayed on the digital display . As part of a special contract, 3 pcs of AN 1F 230V AC and 2 pcs of AN 1F 120V AC were connected to single communication line for visualization, monitoring and data backup of artificial AC mains. Artificial mains AN 1F 230V AC generates single phase 230 V AC voltage (adjustable output voltage in the range 180 ÷ 270 V AC) with selectable frequency 60 / 50 Hz. BASIC TECHNICAL DATA: SUPPLY : 3/PE/N ~ 50 Hz 400 V / TN-S OUTPUT SYSTEM: 2P + ~ 50 / 60 Hz 180 ÷ 270 V / TN-S RATED CURRENT: Inin = 125 A Inout = 200 A Artificial AC mains AN 1F 120V AC generates single phase 120 V AC voltage (adjustable output voltage in the range 100 ÷ 140 V AC) with selectable frequency 60 / 50 Hz . SUPPLY VOLTAGE SYSTEM: 3/PE/N ~ 50Hz 400 V / TN-S OUTPUT VOLTAGE SYSTEM: OUTLET: 2P + ~ 50 / 60 Hz 100 ÷ 140 V / TN-S RATED CURRENT: Inin = 125 A Inout = 350 A
Supplied solution:
Technical solution
Project
Artificial AC mains
Certificate, Statement of Compliance - CE
Commissioning and operator training
Complete solution of hybrid PV system
  • Industry
    Energetics



  • Construction period:
    2014
Hybrid PV system with connection to the distribution grid
Hybrid PV system is able to operate in three different modes: 1.Automatic mode: - when the mains voltage is available, inverters are working in on-grid mode, and the consumption of the building in the point of coupling to the mains is measured. According to the consumption, the power of the inverters is controlled to achieve the zero grid injection. When there is a failure in the mains grid, the PV system smoothly enters the off-grid mode and the line monitoring relay disconnects the house from the grid. After restoring the proper voltage in the grid, PV system smoothly switches to on-grid mode. 2. Off-grid: In this mode, the PV system operates in the off-grid mode independently of the conditions of the mains grid. 3. On-grid, inverters off: This is the mode when the system is avoiding the invertes - inverters are off, line monitoring relay is always on, despite the condition of the grid. Basic technical voltage: Input voltage system: Rated battery voltage: 48V DC Rated PV panel voltage: 350V DC AC mains: 1/N/PE ~ 50Hz 230V/TN-S Output voltage system: 3/N/PE ~ 50Hz 230V/TN-S 1/N/PE ~ 50Hz 230V/TN-S Rated inverter output current: INOM=8,7 A ~ AC Max. inverter output current: IMAX=15A ~ AC Control voltage: 24V DC Protection: IP 54/20 (Enclosure/Inverter)
Supplied solution:
Technical solution
Project

Production, installation, commissioning
Enclosure of the control system with ethernet module and RM SYNC synchronization module

Our products:
3 pcs RM GRID MONITOR
3 pcs FOTO CONTROL 1f 230/48 DC inverter
2pcs FOTO CHARGER DC 48
Electronics of mining locomotive ET.14-900 - tandem with a safety camera system
  • Industry
    Mechanical engineering
  • Investor:
    Polish mines, near Polkowice

  • Construction period:
    2012
Solution of traction drives with possibility of tandem coupling, containing safety camera system
Trolley voltage: 250 V DC Inverter: 125 kVA Output frequency: 0 – 79 Hz Motors: 2 x 55 kW 3 x 220 V .
Supplied solution:
Technical solution, design
Project
Inverters
Camera safety system
Tandem coupling of 2 locomotives
Crash logger – crash diagnostics
electric mining locomotive EE 90
  • Industry
    Mechanical engineering
  • Investor:
    mining industry


  • Construction period:
    2011
Complete solutions of electrical equipment of mining locomotive EE 90
Trolley voltage: 250V DC Inverter power: 125 kVA Output frquency: 0-79 Hz Motors: 2x55 kW, 3x220 V
Supplied solution:
technical solution, design
project
inverters
crash logger
Photovoltaic power plant 3MW Czech republic
  • Industry
    Energetics


  • Construction period:
    2011
Photovoltaic power plant 3MV Czech republic
Supplied solution:
Supplied solution:
PHOTO CONTROL 2903f/125 kW 24 pcs
Controlling and monitoring system
Montage
Installation & launching
Total installed power: 3 MW
Artificial AC mains AN 500kVA 60Hz for compressor testing
  • Industry
    Mechanical engineering

  • Construction period:
    2013
Solution of artificial network AN 500kVA 60Hz according to the customer requirements
Solution of the artificial AC mains AN 500kVA 60Hz – the supply of required electric voltage with selectable frequency 60 Hz / 50 Hz conforms to testing of compressors motors of different power (continuous acceleration of two compressors with power 160kW or start of one compressor of power to 350 kW with frequency internal inverter). Artificial AC mains AN 500kVA, 60Hz was designed according to individual customer requirements. The entire set of artificial AC mains consists of switchgear ARRAY No.1 (output section) with electrical and signaling equipment and controls, switchgear ARRAY No.2 (electronic part) and with electrical equipment and output power transformer TC1 600kVA. The electronic part is equipped with the latest power elements with minimal losses. Artificial AC mains seamlessly covers high starting current of the two compressors 160kW of motor power when one is already running and the other is starting (wye / delta switching). AC output voltage of the transformer is sensed by special measuring circuit which is connected as a feedback, so the output voltage is kept regardless of the load value. Voltage setpoint can be tuned by the potentiometer within a specified range. AC output voltage, current and frequency is displayed on the digital display. TECHNICAL INFORMATION: Input voltage: 3 x 400V ~ AC +10%, - 10 %, 50Hz TN-C Output voltage: 3 x 460V ~ AC +10%, - 10 %, 60/50 Hz TN-C Adjustable range of output voltage : 3 x 414V to 3 x 506V ~ AC Output frequency: selectable 60Hz / 50Hz
Supplied solution:
Technical solution
Project
Artificial AC mains
Transformer
Enclosure / switchgear
Commissioning
Training of personnel
Reactive power compensation for 1MW PVP
  • Industry
    Energetics



  • Construction period:
    2013
Power Factor Correction of PVP is solved by installation of 2 pcs of active compensating units "UNIKOMPENZATOR 400" in accordance with the requirements of the distribution grid. It helps to maintain the desired power factor (cos φ) over the entire photovoltaic supply of reactive power (inductive or capacitive nature) of the distribution network. Standard regulatory scope of the entire PV power factor can be adjusted in the range from 0.95 to 0.95 capacitive inductive. Power factor setpoint is requested from the distribution grid in 5 steps. Both compensation units are connected to the 0.4 kV side of the grid transformer 0,4 / 22 kV. Measurement of current and voltage signals (for transmitter phase angle cos φ) is performed directly on the HV side and also serve as a feedback controller.
Supplied solution:
technical solution
project
2pc UNIKOMPENZATOR 400 175 kWA
montage
commissioning
PV power plant in Czech Republic with using of different PV panel types
  • Industry
    Energetics
  • Photovoltaic power plant
  • Invested capital:
    62 000 €
  • Construction period:
    2010
Photovoltaic power plant
Supplied solution:
Project
PHOTO CONTROL 400 3f/12,5kW 13 pcs
PHOTO CONTROL 290 3f/12kW 5 pcs
Controlling and monitoring system
Montage
Installation & launching
Total installed power: 225 kW
OFF-GRID PV system, Iraq
  • Industry
    Energetics



OFF-GRID PV system, Iraq
In a separate, ventilated kiosk there is an enclosure for FVE1 and the battery. Two air-conditioned enclosures for FVE2, FVE3 and their batteries are installed in the second separate ventilated kiosk. FVE1 is a three-phase photovoltaic system, FVE2 and FVE3 are single-phase photovoltaic systems designed to generate energy for a refugee camp in Iraq. Enclosures of FVE1, FVE2, FVE3 operate in two modes - AUTOMATIC mode or GRID mode. In AUTOMATIC mode, the appliances are fed from battery-powered inverters in off-grid mode. The battery is automatically charged and battery parameters - voltage and the temperature of cell section are constantly measured and monitored by the Battery Management System. With long-term low sun light and battery capacity drop to a critical level, control system switches the supply of appliances to the distribution grid. When the conditions of the control system are met again, the off-grid mode is enabled. In the GRID mode, all appliances are supplied exclusively from the distribution grid. The touch screen on the door of each enclosure offers possiblity of parameters adjusting, display of alarms, system diagnostics and system status. The power of each of FVE1, FVE2, FVE3 is complemented by a complete monitoring, web visualization of the statistics and archive of the overall energy production.
Supplied solution:
Technical solution of off-grid PV system FVE1, FVE2, FVE3
Project documentation, drawings
Air conditioned enclosures with the inverters and graphical touch panel
String boxes for connection of PV strings

Enclosure with main battery contactor
Battery management system
Software + visualization, archive of production, ...
Training of maintenance personnel
Pump drives cooling system
  • Industry
    Chemical industry



  • Construction period:
    2015
Solution of pump drives cooling system
Cooling system with pressure regulation, two independent circuits.
Supplied solution:
Technological solution
Drawing, project documentation
Enclosure with graphical display
2 pcs FM UNIFREM 400 011M + PLC
Software, visualization
Montage, works
Commissioning
Lecture for maintenance personnel
Artificial AC mains AN 17 kVA, 60 Hz, 1f
  • Industry
    Mechanical engineering

  • Construction period:
    2014
Single-phase generator of required output electrical voltage with 60 Hz output frequency.
Artificial mains is used for compressor testing. Single phase AC output voltage is sensed by special measuring circuit which is connected as a feedback in output voltage control circuit. The output voltage setpoint is kept regardless of the load value. Desired voltage at the output is tuned by potentiometer within a specified range. Output AC voltage, current and frequency is displayed on the digital display. INPUT VOLTAGE: 3/PE/N ~ 50Hz 3x400V/TN-S OUTPUT OUTPUT VOLTAGE: 2P + ~ 60Hz 100 ÷ 120V/TN-S RATED CURRENT: Inin = 80A AC Inout = 142A AC MAXIMUM CURRENT: IMAXout = 230A AC (to 2s) CONTROL VOLTAGE: 230V AC, 24V DC PROTECTION: IP 54/20
Supplied solution:
Technical solution
Project
Artificial AC mains
Certificate
Harmonic analysis of input current and output voltage and current
EMC disturbance measurement
Elevators with back-up power supply in housing and polyfunctional buildings
  • Industry
    Elevators
  • Investor:
    Many companies producing elevators
  • Elevator in hotel - complete VONSCH gear box with FC and back-up power supply unit
  • Construction period:
    2005 - 2007
Cage lift regulation(15kW), door opener regulation (370W)
Frequency converters with back-up power supply units ensures by power failure drive in to nearest station and opening the door, so the persons can get out.
Supplied solution:
Techical solution
Special software
Frequency converters
Back-up power supply units
PV system testing laboratory
  • Industry
    Energetics
  • Investor:
    VSDS, TUKE, VONSCH


  • Construction period:
    2016
Measuring and testing laboratory for PV systems up to 10 kW
Custom designed laboratory for East Slovakian distribution company and Technical university of Kosice. User can adjust the voltage, frequency and the load impedance to test the behaviour of different PV systems.
Supplied solution:
Design of technical solution
Project
Products:
FOTO CONTROL 1f 230/48 DC inverter
MPPT charger FOTO CHARGER DC 48
Regenerative artificial AC mains 400 011
Control system and DC supply enclosure
Main enclosure with Energy meter
Enclosure of single-phase VONSCH hybrid system
Testing bed for PV systems
Special software
Montage
Commissioning
Training of personnel
Regulation and control of CONTIWEB STORK decoiler drives, telemetry and teleservice
  • Industry
    Paper industry
  • Investor:
    Harmanec-Kuvert

  • Construction period:
    2014
Regulation and control of decoiler drives, telemetry and teleservice
Vector control of torque and speed, converter is commanded over MODBUS RTU from PLC SIMATIC S7-1200. System is remotely monitored over eWON industrial router.
Supplied solution:
UNIFREM 400 007M
UNIFREM 400 004M
PLC
HMI
TELEMETRY
PROJECT
SOFTWARE
FULL EQUIPMENT OF SWITCHGEAR
Backup power supply - backup 3-phase artificial AC mains with pure sine wave output
  • Industry
    Chemical industry
  • skúšky zariadenia
    baterková časť
  • Construction period:
    2012
Backup power supply - backup 3-phase artificial AC mains with pure sine wave output
To ensure backup power supply, standalone backup controlled 3-phase artificial AC mains for the expected maximum load of 2.2 kVA has been developed. This system produces the output sinusoidal AC line voltage 3x400 and 3x230V + PEN phase voltage. Each output phase is fused with a separate circuit breaker.
Supplied solution:
Project
Backup battery enclosure
Enclosure of converter
FM UNIFREM 400 007M -3PULSE (specially modified converter), sine filter
backup battery charger
Battery management system
Combined hybrid/on-grid PV system
  • Industry
    Energetics
  • Investor:
    Cooperation between VONSCH and ID Design s.r.o.


  • Construction period:
    2016
Self consumption conver, backup supply for selected appliances during the blackout
This is a project made upon a special request from the customer. It involves two kinds of inverter - PV panel fed for on-grid operation and 48V battery fed for hybrid operation. The hybrid inverter serves mostly for self-consumption covering late in the evening and during the night. On-grid inverter is user for self-consumption cover during the day. The surplus energy is used for battery charging. All process is designed to minimize the grid dependency, to maximize the energy usage. Control algorithm is implemented in VONSCH RM-WEBi system. Priorities on energy usage can be adjusted by the end user.
Supplied solution:
project
FOTO CONTROL 1f 230/375
FOTO CONTROL 1f 230/48
FOTO CHARGER 375/48 DC
RM GRID MONITOR
RM WEBi control and visualization system
other devices and commissioning by ID Design s.r.o.
electric mining locomotive EE 120
  • Industry
    Mechanical engineering
  • Investor:
    Russian mines in Yakovlevsk and Kola regions


  • Construction period:
    2006-2008
Complete solutions of electrical equipment of mining locomotive EE 120
Trolley voltage: 275 V Inverter: 170 kVA Output frequency: 0 - 120 Hz Motors: 2 x 75 kW, 3 x 220 V .
Supplied solution:
Technical solution, desing
project
inverters
complete delivery of electrical equipment
commissioning
Desalination plant
  • Industry
    Water distribution

  • Construction period:
    2008
Regulation of 3 pumps 690V 630 kW
Supplied solution:
Frequency converters 3 pcs. VQFREM 690 630
Manuals and displays in english
Automation of the start-up of the screw pumps of the rainwater pumping station
  • Industry
    Sewage tanks



  • Construction period:
    2017
Control cabinet system for automation of rainwater pumping station
In the rainwater pumping station are installed two independent screw pumps for drainage of rainwater. First softstarter SINAM 400/191 starts the pump motor #1. Second SINAM 400/191 starts the #2 pump motor. The control system for the rainwater pumping station automation includes controls for automatic control of pump switching, manual mode or manual mode to the level. The rainwater height is sensed by a level switch, and the control system in automatic mode decides which pump is to be operated while maintaining the pump alternation condition. In all control modes, the critical level level is sensed by the vibrating fork level switch, and in automatic mode, at the critical rainwater level, both pumps are switched on at the same time. The display has 4 screens showing total data, level height, softstarter status information, setting options, etc. In manual mode, it is possible to manually operate the start / stop buttons. At the critical level of the rainwater, it is possible to select the control of both pumps at once. In the event of a power failure, the control system has backup power, meets safety requirements, and sends individual information about softstarter, level, backup power to the JABLOTRON JA80 control panel and the entire system is visualized locally on the intranet. In the future, the Control System will also manage the system for automatic lubrication of individual pumps
Supplied solution:
technical solution
constrol system cabinet design and project
2x SINAM 400/191 softstarter
control system cabinet + RDT
Commissioning
Personel training
QUATROFREM 400 110 for the drive of the crane in permanent operation
  • Industry
    Cranes

Our sales representative in Czech Republic - Tespo Engineering Ltd was solving this study for the drive of the crane, which is in permanent operation. Customer needed the drive in a way that generative mode of operation of the motors is supported; the drive has to be allowed recuperate the energy to the grid. That is the reason why the drive of the most powerful motor has been solved by four quadrant drive QUATROFREM 400. The input side of this drive (controlled rectifier) is used for supplying two other drives: crane travel and traversing. DC circuits of all the drives are interconnected, which allows free flow of the energy across the drives and saves energy costs for the customer.
Supplied solution:
Project
QUATROFREM 400 110
Montage
Installation
Speed regulation of industrial portal crane
  • Industry
    Cranes
  • Portal crane
Regulation of crane travel,crab and lift. Fast response and accuracy thanks to VONSCH unique vector control.
Supplied solution:
UNIFREM 400 055
UNIFREM 400 030
UNIFREM 400 005
commissioning
Water ski lift
  • Industry
    Other
  • Investor:
    Water ski school
  • Installation at water ski school

  • Invested capital:
    0, 4 mil. Sk
  • Construction period:
    2007
Complete solution of water ski lift drive 55 kW
Supplied solution:
engineering project
frequency converter VQFREM 400 055
braking resistor
complete gear box
audit report
assembly, installation
Uninteruptible supply for elevator
  • Industry
    Elevators


  • Construction period:
    2014
Backup power for the elevator drive in home for pensioners was designed and intended for short-term emergency lift mode ( immobile patients transfer ) in the case of power failure. The existing elevator switchgear was enriched with batteries enclosure and VONSCH converters enclosure. This solution is managed by an elevator according to the original design,it can be manually switched to a backup system and powered by batteries during power failure. Batteries enclosure is connected to the VONSCH converters enclosure. This enclosure is connected to the existing switchboard for elevator control of the lift. Hydraulic drive unit is connected to the elevator control cabinet inverters. In the presence of the power supply unit is connected to a hydraulic motor contactors in the converters enclosure according to the original plan and is managed by the original logic. In case of power failure motor is switched to wye connection by the contactors and is controlled by the UNIFREM 400 011M frequency converter. In case of power failure, control circuits of the elevator supplied from the UNIFREM 002M inverter. In the presence of the supply voltage batteries can be automatically recharged. BASIC TECHNICAL DATA Voltage system: 3/PE/N ~ 50Hz 400V/TN-S Rated current: In=40A Control voltage: +24V DC, 230V~AC Protection: IP 43/00
Supplied solution:
Technical solution
Project
Enclosure for the converter
Enclosure for the batteries
Manuals and user guides
Labour, wiring, installation
Commissioning
Training of personnel
GSE system
  • Industry
    Energetics


  • Construction period:
    2014
Minimization of grid power for objects having an PV power plant
GSE CONTROL is made for minimization of grid power flow for the objects equipped with own energy source (PV or other power plant) and having a significant own consumption. The GSE CONTROL evaluates S0 outputs from the energy meter connected to the point of common coupling. GSE CONTROL automatically controls the energy flow between the battery and the three phase AC grid. There are several basic modes: battery charging (from the energy surplus), battery discharging (own consumption cover), equalized charging. Batteries are not the part of delivery.
Supplied solution:
Technical solution
Project documentation
GSE CONTROL 3F 400/10 kW
Battery protections and cover
Special software
Commissioning
Special drive of revolving stage
  • Industry
    Other

  • Construction period:
    2015
Moving enclosure with a panel for drive control of the revolving stage
By using the Control Panel (optional internal or external panel by switch) frequency and direction of motor rotation of each revolving stage either for all connected motors simultaneously or individually for each stage can be controlled. Reached frequency and direction is indicated by LEDs on the panel and the system can be safely shut down using the CENTRAL STOP button. Enclosure is made with a built-in ventilation and built-in RFI filter for compliance with EMC standards.
Supplied solution:
Technical solution
Project, drawings
VQFREM 400 007 - 7,5M
VQFREM 400 004 - 3M
Sine filter SF1-400 005
Sine filter SF1-400 003
Montage
Commissioning
Drive of technological line for processing boxes
  • Industry
    Paper industry


  • Construction period:
    2015
Drive of technological line for processing boxes
Enclosure for technological line of folding boxes has an installed frequency converter for control line drive and frequency converter drive for unloading lines. The vibrator loader on the line is controlled by the original single-phase frequency converter. The control system in the control cabinet controls the operation of the entire line. It processes information from the actuator limit switches unloading lines and lines of photocells, control consoles and motor protection switch. The whole system can be shut down by central stop button on the line. For visualization and control of the system, the enclosure was supplemented by the control panel.
Supplied solution:
Technical Solution
Project documentation and Drawings
UNIFREM 400 011M converter
UNIFREM 400 003M converter
Montage
PLC, software
Commissioning and testing
Pump control wells for household well
  • Industry
    Water distribution
  • Inštalácia UNIFREM 400M + SF
Converter with built-process PID controller regulates the pressure in the system to the desired value. At zero water intakes converter turns off automatically to save electricity. When the pressure drops below the preset value, converter is automatically started and begins pumping to increase the pressure.
Supplied solution:
UNIFREM 400M
Sine filter SF
Commissioning
DC supply for testing trolley machines
  • Industry
    Mechanical engineering


  • Construction period:
    2015
Rectifier for supply of electric mining locomotives
DC power supply for feeding the trollery wire for TLP class locomotives. One of several output voltages can be user: (UOUT1=1x325VDC, UOUT2=1x275VDC, UOUT3=1x225VDC). This rectifier is equipped with the line monitoring relay, so in case of grid failure the DC supply is turned on to increase safety.
Supplied solution:
Technical solution
Project documentation
Manufacturing and montage of the enclosure +RN-1
Commissioning and testing
BAT K6
  • Industry
    Heat generation
  • Investor:
    Bratislavská Teplárenská, a.s.
  • VQFREM 690 1100
    prce na mont?i meni?a
  • Invested capital:
    8.8 mil. SKK
  • Construction period:
    2005
Feed boiler control K6, 690 V/1100 kW
Supplied solution:
Project
Step-down transformer with two secondary windings
Freq. converter VQFREM 690 1100
LW Motor
Control system
Enclosure, wiring
Montage, commissioning
TEKO CP 3, 4, 5
  • Industry
    Heat distribution
  • Investor:
    Tepláreň Košice, a.s.
  • Relizcia VQFREM 690 800
    Rozlo?enie prvkov Relizcia VQFREM 690 800 v rozvdza?i
  • Payback period:
    1.5 years
  • Invested capital:
    35 mil. SKK
  • Construction period:
    2002 - 2003
3x circular pump control, 800 kW each
Supplied solution:
Project
Control system
3x freq. converter VQFREM 690 800
3x transformer
3x LW motor
3x pumps
Technology
Enclosure, wiring
Montage, Commissioning
BAT CP 5
  • Industry
    Heat distribution
  • Investor:
    Bratislavská Teplárenská, a.s.
  • ?erpadlo 500 kW a nov NN motor
  • Payback period:
    One season
  • Invested capital:
    3.5 mil SKK
  • Construction period:
    2000
Circular pump 5, 500 kW
Supplied solution:
Project
Step-down transformer
LW Motor
Freq. converter VQFREM 690 500
Enclosure, wiring
Montage
Pump control of flood water 315kW, 250 kW
  • Industry
    Water distribution
  • Investor:
    Waterworks - eastern Slovakia
  • VQFREM 400V, 315kW
  • Construction period:
    2007
Pump control of flood water 315kW, 250 kW
Supplied solution:
technical solution, design
frequency converters
Diamond mine, Mirny, Siberia
  • Industry
    Mining
  • Investor:
    Russian investor

  • Payback period:
    1 year
  • Invested capital:
    1 mil. SKK
  • Construction period:
    2005
Control of water level in the tank
Supplied solution:
Turnkey delivery
Artificial AC mains AN 150kVA 1f 60Hz, 1x230VAC/1x115VAC for compressor manufacturer
  • Industry
    Mechanical engineering



  • Construction period:
    2017
Solution of the single-phase generator of the required output voltage with an output frequency of 60 Hz
The compressor manufacturer in the Slovak Republic has had to solve the problem of testing its products for markets with 60Hz frequency. Based on its requirements, a special aingle-phase artificial AC mains was designed and manufactured to test hermetic compressors and condensing units. Output alternating single-phase voltage is measured by a special measuring circuit which is connected as a feedback in the output voltage control circuit and therefore the setpoint of the output voltage is maintained regardless of the load value. The generated grid voltage at the output of the grid is fine tuned by the potentiometer within a specified range. The output AC voltage and current of each output branch is displayed on the digital displays.
Supplied solution:
Technical solution
Project documentation and drawings
Artificial mains AN 150kVA 1f 60Hz, 1x230VAC/1x115VAC
Certification
Harmonic analysis of output voltage, output current and input current
User manual
Training of personell
Roof photovoltaic power plant 100 kW
  • Industry
    Energetics



Roof photovoltaic power plant 100 kW
Supplied solution:
Supplied solution:
PHOTO CONTROL 3f400/33kW 3 pcs
Controlling and monitoring system
Montage
Installation & launching
Total installed power: 125kW
Roof photovoltaic power plant 50 kW
  • Industry
    Energetics


  • Construction period:
    2010
Roof photovoltaic power plant 50 kW
Supplied solution:
Supplied solution:

PHOTO CONTROL 3f400/40 kW 8 pcs
Montage
Installation & launching
PV power plant Giraltovce SR
  • Industry
    Energetics

roof PV power plant
Supplied solution:
FOTO CONTROL 3f 400 / 12
montage, commissioning
Photovoltaic power plant 125 kW
  • Industry
    Energetics

  • Construction period:
    2011
Photovoltaic power plant 125 kW Vaniskovce
Supplied solution:
Supplied solution:
PHOTO CONTROL 4003f/40 kW 3 pcs
Controlling and monitoring system
Montage
Installation & launching
Total installed power: 125kW
PV power plant Turie
  • Industry
    Energetics

  • Construction period:
    2012
PV power plant Turie - strešná
Supplied solution:
1 pc FOTOCONTROL 400/12,5
montage
commissioning
PV power plant Bytčica
  • Industry
    Energetics

  • Construction period:
    2012
PV power plant Bytčica
Supplied solution:
2 pcs FOTOCONTROL 400/12.5
montage
commissioning
Small PV power plant + full backup of one phase
  • Industry
    Energetics


  • Construction period:
    2014
Reduction of electricity costs + backup of one phase
The single-phase photovoltaic hybrid system with the household consumption covering feature was installed. In case of power failure and sufficient battery capacity, the plant is able to backup the appliances in the one phase - inverter instantaneously and smoothly enters off-grid mode.
Supplied solution:
Technical solution
FOTO CONTROL 230/48 DC
Tristar MPPT charger
RM GRID MONITOR
Enclosure
String box
PV home power plant Prešov
  • Industry
    Energetics

  • Construction period:
    2014
Solution of photovoltaic power plant with remote monitoring to reduce energy costs
The need to reduce the cost of the house and feed the electricity surplus into the grid, the need for remote monitoring of the inverter + status messages over e-mail was addressed as follows: Inverter FOTO CONTROL 230 / 375 DC operates in on-grid mode. RM WEB module is used for the monitoring of the power plant.
Supplied solution:
FOTO CONTROL 1f 230/375DC,
RM WEB
Efficient water heating by solar energy
  • Industry
    Energetics


  • Construction period:
    2014
Efficient water heating by solar energy
FOTO CONTROL 1f 230/375 DC inverter is used as an electronic MPPT controller of AC coil power. This solution increases the energy yield by 30-40% comparing to the standard switch. In addition to this, automatic switching of external load after exceeding preset power is possible. .
Supplied solution:
FOTO CONTROL 1f 230/375 DC
PV power plant in Czech Republic - 1 MW
  • Industry
    Energetics
  • Photovoltaic power plant
  • Invested capital:
    262 000 €
  • Construction period:
    2010
Photovoltaic power plant
Supplied solution:
Project
PHOTO CONTROL 400 3f/40 kW 26 pcs
PHOTO CONTROL 400 3f/12 kW 1 pcs
Controlling and monitoring system
Montage
Installation & launching
Total installed power: 1 MW
Photovoltaic power plant 1MW Rokytov
  • Industry
    Energetics

  • Invested capital:
    400 000 €
  • Construction period:
    2011
Photovoltaic power plant 1MW
Supplied solution:
Supplied solution:
Project
PHOTO CONTROL 290 3f/125 kW 8 pcs
Controlling and monitoring system
Montage
Installation & launching
Total installed power: 1 MW
Iron ore-mining locomotives drives
  • Industry
    Mining
  • Investor:
    Russian investor
  • Coal-mining locomotive in Russian coal-mine
  • Invested capital:
    8 mil. Sk
  • Construction period:
    2006 - 2007
Complete customer solution of main traction and subsidiary electrodrives
Complete customer solution: project, development, production, installation at customer in iron ore-mine. Main traction electropart of coal-mining locomotive is solved by two asynchronous motors 75kW, controled by vector frequency converters (system HDDis), feeded from single direction trolley. Subsidiary circuits are hydraulic system, cooling system,sand-blasting system. Control system controls all circuits and enables to control two interconnected locomotives from one station. This solutions is accomodated with visual system.
Supplied solution:
engineering project
traction inverters
frequency converters 75kW
frequency converters 3kW
control system
visualisation system
installation
Coal-mining locomotives traction drives
  • Industry
    Mining
  • Investor:
    Turkish coal-mine
  • Locomotive prototype
    Drives parameters setting
  • Invested capital:
    5,5 mil. SKK
  • Construction period:
    2007 - 2008
Complete customer solution of main traction and subsidiary electrodrives
Supplied solution:
engineering project
traction inverters
subsidiary frequency converters
control system
visualisation system
installation
PV power plant Porúbka
  • Industry
    Energetics

  • Construction period:
    2012
PV power plant Porúbka
Supplied solution:
2 pcs FOTOCONTROL 400/33

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