However, the PWM drives have the disadvantage of overstressing electrical insulation with respect to the bipolar pulse supply, which demands higher level of reliability for the high-voltage insulation
MEGGER'S new high-voltage insulation
resistance testers (IRTs) are said to offer exceptional versatility in a compact, rugged and light unit that weighs little more than half as much as its predecessors.
Plasma has long been discharged in liquid for pulsed power and high-voltage insulation
, but recently the electrical breakdown involved has been found to treat water as well as chemicals and ultraviolet light but without the harmful side effects.
The goal of the project was to better understand the physical processes and potential for improved design methods of high-voltage insulation
The small size of the transformer-rectifier module, and the high electrical strength of its high-voltage insulation
and the effective removal of heat from the heat generating elements are ensured by the application of the special design of the TRM and a liquid synthetic dielectric.
They feature popular shaft/mounting dimensions, high-voltage insulation
, high continuous rated operating temperature plus an over-temperature protection thermal switch, standard windings for 160, 300 and 600 bus volts (custom windings available) and choice of feedback options: resolver, encoder, EnDat and SSI.
An alternative way of performing high-voltage insulation
tests is an example of how high cable integrity and low cost can coexist.
The digital, high-voltage insulation
tester can perform autoranging insulation-resistance measurements to 500GA3/4, with test voltages ranging from 500 volts to 10 kilovolts in 500-volt increments and a [+ or -]3% accuracy.
Toskey, "Surface studies of corona-treated silicone rubber high-voltage insulation
," IEEE Conference on Electrical Insulation and Dielectric Phenomena, 1992 annual report, paper no.
The new ACPL-P34x and ACPL-W34x optocoupler family is based on process technology that enables higher output current drive with rail-to-rail capability, providing high-voltage insulation
and robust protection for industrial drive, inverter and power supply applications.
A sampling of topics to indicate level of technicality and range of subjects: surface deflection controlling in cylinder shallow shell forming, high-voltage insulation
space-components applying resin composites modeling technology, the development and summer test of a new ceiling radiant cooling panel, thermal oxidation of asphalt fractions by in situ FTIR analysis, a welding method for carbon nanotubes, damage distribution of high purity aluminum under the impact loading, and assessment of low-carbon efficiency evaluation in the prospect of environmental optimization.
Breakthroughs in High-Voltage Insulation
, Cable Joints and Terminations on Display