Power is proportional to the product of speed and torque. As for electric motors torque is given by the rotor dimensions, lower speed motors have lower ratings.
Green hydrogen is extremely important to achieve climate targets, but not for putting into lots of new applications, but to replace the hydrogen currently generated by steam reforming. Only when we have achieved this replacement we should start to think about hydrogen or hydrogen derivates for...
Such kind of power supplies is quite common for electroplating. Look for a "pulse plating power supply" and you may find something suitable for your application at reasonable cost.
A busbar joint is much more complex as commonly considered. The performance is a combination of busbar material, coating,clamping hardware and maximum temperature. I can confirm that in US silver is preferred, at least on Cu, whereas the rest of the world prefers other coatings. Some of our...
At 15hp drives rarely use IPMs. More likely the drive uses a PIM - a module containing all power semiconductors including the input rectifier. But often in this power class the driving circuit is not done by isolated drivers but by level shifters (similar like in a IPM, but outside the module)...
With 5800 kVA it is unlikely that these transformers power public distribution, lighting or drives. Maybe the load is some process equipment. In this case it is beneficial that with an ungrounded secondary there are no large fault currents in case of an insulation failure. However, insulation...
Please post the diameter of the pole face and the thickness of the package as well as the nameplate of the rectifier. With this information it is feasible to find an equivalent device.
Also consider regions outside Amercia: 690 V is common in European heavy industry. That is the reason why a lot of equipment is available for this voltage class, also from US-based suppliers.
Some more information:
Infineon will not discontinue all 2nd Gen. IGBTs in 62mm. One chip variant for fast switching is still marked as active:
FFXXXR12KS4 (XXX: nominal current in A)
See...
The device initially used in the Stromag servo drive is a first generation IGBT. Currently the manufacturers are selling 7th generation devices. The cross reference list from Semikron is helpful, but also the suggested replacements are already discontinued (2nd generation IGBTs). When buying...
