GTO Thyristors for stationery maintenance
The paper industry uses complex and powerful electrical machines.The cost of electrical energy supplies requires strict management of the machine fleet and its controls. Fully static semiconductor inverters and rectifiers fully enable this management.
Power electronics is the essential lever for high performances in the quest for efficiency and energy yield.
The driving force is now under control.
THEMATRONIC power components rectifier diodes, inverter thyristors, inverter transistors, and capacitors are at the heart of our power converters.
These components are constantly being innovated and continually contribute to the efficiency of your equipment.
The rotating machine
Rotating machines have lot of applications in the paper industry. Energy management in a production site consists to the constant search for the best balance between the site's available power source and its instantaneous consumption.
Electrical balancing between Power Semiconductors performed by THEMATRONIC is essential to fully exploit these advantages metal .
Fast Diodes, Fast Thyristors, MF and HF Transistors , and the flexibility of their numerous configurations, offer a wide range of applications allowing simultaneous control of :
- Motor torques.
- Rotation speeds.
- Starting cycles and durations.
- Peak current and voltage limitations.
- Continuous monitoring of power consumption and compliance with electrical network capacities.
Main semiconductor converters:
Entirely static and integrated into operating and automation lines, the converters fully utilize the capabilities of High Power Semiconductors and optimize power consumption while ensuring total efficiency.
A major concern is motor startup management. This is a delicate phase, and the startup method depend directly of the capacity of the electrical network and the required starting current, which is considerably higher than the nominal operating current. which is considerably higher than the nominal operating current. Many production stations are demanding during this phase of use, and it is the unparalleled performance of Power Semiconductors that ensures high motor torque while respecting the maximum network currents assigned for Power Management.
Converter families.
- DC Motor Drives (phase-controlled thyristors)
- Variable-Frequency Motor Drives (fast thyristors, transistors)
- Electronic AC Motor Starters (phase-angle control using thyristors)
- Static Thyristor Contactors (in Switch configuration).
- Power Dimmers for resistive loads (phase-angle or wave-train control)
- Low and Medium Frequency Inverters (fast thyristors and transistors).
- Static Current Rectifiers, Semi-Controlled or Controlled (Greatz Diode Bridges or Thyristors)
Solid State Protection Systems :
- Diode Cathode Protection.
- Surge Protection with Calibrated Thresholds.
- Grounding with Calibrated Voltage and/or Current Thresholds.
- Equipotential Bonding (and Current Return Blocking).
- Potential Threshold Monitoring and Automatic Discharge.
Contributions to Line Protections.
Semiconductors are essential relays for managing any unforeseen interruption, regardless of its origin, such as:
- Network fault,
- Ground faults,
- Load faults,
- Synchronization disruptions in cycles or commands.
Cogeneration.
A site's production is source of heat that is usually unused. By managing this heat loss, cogeneration consists of instantly producing and using electricity from the same source and within the same production site. The energy recovered by this Integrated Power Plant is now possible thanks to the integrated semiconductor capabilities;
- Rotating Alternator Diodes (Excitation Diodes, Mass Balanced, and Medium Current).
- Current Rectifier Diodes,
- Thyristors and Transistors for Frequency Inverters,
- Thyristors and Transistors for Frequency Synchronization Switches.
THEMATRONIC and its immediately available solutions, the sustainability of your equipment.
