3 products found

Elettra Srl products

Elettra - Capacitive AC Voltage Divider for High Voltage Measurement

Capacitive AC voltage dividers are essential tools for converting high RMS voltages, up to 1200 kV, into measurable values suitable for voltmeters. These dividers are predominantly used to ensure accurate voltage measurements in accordance with IEC standard 60060-2. Their design incorporates a high-voltage capacitor composed of solid polypropylene units immersed in oil, with added damping resistors to maintain stability. The components reside in robust fiber-glass cylinders, equipped with metal flanges, and are configured for low inductance and minimal electrical noise interference. A critical feature is the termination resistor accommodating a 75 Ω triaxial measuring cable. The assembly also includes mechanisms for secure earthing and can be adapted for partial discharge measurement applications. Optional configurations exist to accommodate various voltage outputs and operational demands. Rigorous testing and calibration are conducted in conjunction with INRIM to certify performance, ensuring dependability and precision in high-voltage environments.

Elettra - Universal Damped Capacitive Voltage Divider

The universal damped capacitive voltage divider is engineered for the precision measurement of various voltage forms, including impulse, AC, and DC voltages. By converting high-voltage inputs into manageable values for transient recorders or peak voltmeters, this device meets IEC standard 60060-2 requirements. The high-voltage capacitor consists of solid polypropylene units in oil, connected in series with damping resistors housed within fiberglass cylinders. Its design includes both resistive and capacitive arms to efficiently measure DC voltages and ensure low inductance and noise protection. Essential features include a 75 Ω triaxial cable termination resistor, a double toroid top electrode optimized for specific voltage ratings, and a robust earthing system. Comprehensive routine and type tests ensure performance certification, accredited by RSE and ACCREDIA.

Elettra - Impulse Voltage Generators for High Voltage Testing

Impulse voltage generators are specialized equipment built for testing high voltage systems in power applications. These generators simulate lightning, chopping, and switching impulses in compliance with IEC standard 60060-1 and other standards like IEEE and GOST. They are versatile tools that can be customized for an array of tests, including impulse voltage tests on transformers, impulse current tests on surge arresters, and tests on insulating materials for electrical equipment. The modularity of the system makes it suitable for use in industries, laboratories, research facilities, and education settings. The design is based on a modified Marx multiplier circuit, capable of generating pulses by connecting capacitors in series through spark gaps. This design allows for varied configurations to modify output voltage and waveform characteristics. Each generator features series and parallel resistors to fine-tune the impulse waveform, ensuring high efficiency and stability. Models such as IGS, IGM, and IGL provide options for different voltage and energy requirements.