Electricity is the main type of power to be used, irrespective of the initial source of energy. Each of the renewable energy types, i.e. Bioenergy, Biogas, Waste to Energy, Hydrogen, Wind, Solar Energy, have their own unique factors that make them more accessible to different regions across the globe. Solar PV or solar CSR is most prevalent in countries where there is more natural sunshine, i.e. the Middle East, where as the natural geography of the UK makes off-shore wind power a suitable energy type. Producing green energy is only one part of the equation, we need to consider how the electricity will be stored and transmitted. Transmission projects are due to expand in 2022. 76% of engineering companies, who responded to a Deloitte’s survey suggested that they are also looking at either enhancing the current transmission infrastructure or look to build new ones, this is key to getting the energy to where it needs to be and making this a marketable proposition. Our products are custom-designed for use in on- and offshore wind turbines. We can fulfil the needs of the wind energy industry as well as the requirements of several classification societies such as DNVGL, LRoS, BV, and RINA by employing high quality materials and high standards.
Products and Solutions
UNINTERRUPTIBLE POWER SUPPLY (UPS SYSTEMS)
The uninterruptible power supply of the controlling components of wind energy plants is of essential importance for an efficient and safe production of wind energy. For example, loss of position lights, failures of elevators or loss of the emergency stop systems must be avoided as well as it‘s strictly essential to ensure the continuous availability of communication and control elements. To avoid problems and risks, we have developed UPS-systems that meet the stringent requirements for wind energy plants. Our for-wind energy applications especially equipped with UPS-systems are braving the elements. By their extreme vibration and shock resistance and compact design the systems are adapted to the hard conditions in on- and offshore operation. This ensures reliability and durability under extreme conditions such as occur in the wind energy sector.
UPS-systems are used within the sector for.
THE SECURED POWER SUPPLY OF SAFETY DEVICES SUCH AS
- Obstruction lights of the wind energy systems
- Tower interior lighting
- Elevators
THE PROTECTION OF CONTROL SYSTEMS AND AUTOMATION DEVICES, SUCH AS
- Control plants
- Pitch control
- Cooling of the inverter
- Emergency braking e.g.
THE PROTECTION OF COMMUNICATION DEVICES TO ENSURE UNDISTURBED DATA TRANSMISSION
Customized UPS-Systems
We gained in the field of customized manufacturing a leadership position and meets the diverse requirements of industrial power supply – even under deviant environmental conditions, shock- or vibration impact. Special technical adaptations and reliable and high product quality ensure that the UPS-systems out of our all-weather-ups-series operate properly as well as under extreme conditions within temperatures from -30°C up to +45°C. The following types of ups-systems are mainly used in the field of wind energy on- and offshore:
Features:
- Mains interactive UPS-systems, 625 and 1200 VA
- 1-phased double conversion UPS-systems, freestanding or
- 19-inch-rack, 0.7 kVA up to 3.0 kVA
- 1-phased double conversion ups-systems up to 6 kVA,
- built-in into industrial cabinets
- 3-phased double conversion UPS-systems, freestanding, 10 and 20 kVA
- 3-phased double conversion UPS-systems with industrial technology, 20 kVA
- ups-systems 115 V (for the U.S. market with UL-approval)
- UPS-systems with offshore-approval/-suitability
The Uninterruptible Power Supply is customized according to special requirements.
AC/DC CONVERTERS (RECTIFIERS)
The rectifiers are modular in design and may function as both a power supply unit and a charging device. In conjunction with batteries, the systems provide the best option for uninterruptible DC power supply for essential loads.
SWITCHED MODE RECTIFIERS
Are available in 12 V, 24 V, 48 V, and 60 V output voltages. The rectifiers are modular in design and may function as both a power supply unit and a charging device. In conjunction with batteries, the systems provide the best option for uninterruptible DC power supply for essential loads.
Battery Charger
It is possible to execute periodic gas charging of a backup battery or formatting of cell components of a drive battery. Automatic discharge of battery cells with constant current takes place here. All battery-specific properties can be varied for this purpose. The single-cell therapy device can discharge and charge up to three single cells. This technology can renew battery cells that have lost or cannot achieve their capacity. Fully automated charge and discharge cycles may be configured and saved using inbuilt digitized monitoring electronics. Because of the automated mode, these programmers may be implemented without the need for monitoring by operational employees.
RESISTORS AND LOAD BANKS
MGEC is the ideal portable load bank for all service technicians to easily and efficiently perform stress tests by means of its low net weight, the very easy way to transport and it’s simple operation. The easy to handle load resistances are available with performance ranges of 11,8 kW up to 30 kW and can be used for voltage testing up to 400 V AC/DC.
- Starpoint Earthing Resistors Starpoint earthing resistors are of utmost importance on near shore transformer stations on offshore AC-platforms where several transformers are installed. In case of short circuit, it is necessary to limit the short circuit current to a maximum safe value before short circuit breakers allow to stop the current. For this application Starpoint earthing resistors in different designs and versions. Basic elements for these resistors are stainless steel grids of type HWS and SPR. MGEC delivers starpoint earthing resistors for a current up to 10 kVA for 1 sec with an isolation degree up to 70 kVA.
- Breaking Resistors Applications amongst others: rotor blade adjustment, energy absorption from crane motors on jack-up vessels, speed control of generators, power compensation in case of mains disturbances Braking resistors built-in into wind turbines on- or offshore are essential for the protection of the converter systems. In case of temporary mains disturbances, the breaking resistors can absorb the energy of the generator up to the nominal power of the generator for 5 seconds before the electricity stops the converter or the mains is coming back, and the converter is able to supply the mains.
- Filter Resistors for Harmonic Filtering To guarantee a sinusoidal voltage of high quality the output voltage of the converter must be filtered. We provide robust and compact filter resistors to smooth the arising harmonic distortions. The reliability and high quality of our filter resistors is well accepted worldwide on the part of almost all famous converters.
Transmitters
Pressure transmitters are the most susceptible instruments to hydrogen permeation, because of the necessity for a thin diaphragm, the presence of silicone oil as filling fluid and the high performance of this type of instrument. For both types, analogue and SMART HART, the sensors are manufactured in the same manner. They are a welded configuration, and we strongly suggest the selection of the SS316L process connection with gold plating on the diaphragm as a minimum to avoid product degradation.
Switches
For all the range of pressure and temperature switches suggests the selection of SS316L material for the process connection and for the sensing element. For the design of the sensing element, it is suggested in all. Welded configurations, to avoid leakages and that there is O-ring or gasket compatibility. This is the same, for the mechanical level switches, where float and all the wetted parts should be in SS316.
Gauges
No precautions are required for the use of Bourdon tube, diaphragm, and capsule type pressure gauges. as standard, so these are suitable for use with Hydrogen. This is the same for bimetallic type or gas expansion temperature gauges. It is recommended that the use of SS316 in the product construction as a minimum. Gold plating of the diaphragm will ensure safety the in presence of both high pressure and temperature.
Hydropower
The basic principle of hydropower is using water to drive turbines. Hydropower plants consist of two basic configurations: with dams and reservoirs, or without. Hydropower dams with a large reservoir can store water over short or long periods to meet peak demand. The facilities can also be divided into smaller dams for different purposes, such as night or day use, seasonal storage, or pumped-storage reversible plants, for both pumping and electricity generation. Hydropower without dams and reservoirs means producing at a smaller scale, typically from a facility designed to operate in a river without interfering in its flow. For this reason, many consider small-scale hydro a more environmentally friendly option. The correct choice of instrumentation has a great influence on the efficiency of the plant. These systems must offer reliability, longevity, and ease of operation.
Energy from biomass can take the following forms:
From plants:
Biomass process requires steam to soften and reduce the cellulose element, ie straw into a pliable matter, where enzymes can be added to liquify the substance. Once liquification has taken place the product is pumped into fermentation tanks where yeast is added to convert the now sugars to ethanol and carbon dioxide.
Transmitters, Switches and Gauges materials and size are customized according to special requirements.
Auto-Restart Relay
This unit is designed to bypass the start switch to re-energize the M1 starter coil following a momentary drop or interruption of the control voltage. When the control voltage drops below the under-voltage trip point and the motor is running, the under-voltage delay begins. If the control voltage returns above the restart voltage point before the under-voltage delay expires, the adjustable restart delay begins. Upon expiration of the restart delay, the internal relay energizes for the duration of the output interval providing a restart. If the control voltage remains for longer than the under-voltage time delay or the motor was not initially running when the control voltage failed, the unit will not restart the motor after the restoration of power. Instead, a manual restart is required. This relay distinguishes between control voltage failures and stops pushbutton operations. A stop pushbutton operation de-energizes the output relay and terminates the timing sequences preventing an automatic restart.
Features:
- Monitors 120 vac 50/60hz control voltage.
- SPDT Output Relay, Pilot Duty B150, 360VA 10 amps @ 120 vac resistive.
- 8 pin and 11 pin plug-in models.
- Adjustable under-voltage and restart delay settings.
- Operating temperature of 0 deg C to 55 deg C
Remote Monitoring Base Unit
A variety of sensors, such as temperature, humidity, vibration, and pressure, can be used for this process monitoring. The sensors can be hardwired directly to the Base Unit or wirelessly connected via the Remote I/O. The Remote I/O then communicates sensor data to the Base Unit via Bluetooth Mesh. Up to 5 Remote I/O’s can be wirelessly linked to a single Base Unit. Sensor data is monitored in real-time, and alerts are triggered based upon customizable thresholds. Alerts are configurable through Mobile App or the Web Portal. Each channel can be configured for a high and low threshold value as well as custom alerts. allows for truly remote process monitoring since data can be made available to the user from practically anywhere at any time.
