Agostino Falcone

The OC (open circuit) test of a transformer is a method used to determine the core losses and impedance of the transformer when it is energized without any load connected. During this test, the primary winding is energized at its rated voltage while the secondary winding is left open. The input voltage, current, and power are measured to assess the transformer’s performance under no load conditions. This test is crucial for evaluating the efficiency and operational characteristics of transformers, including no-load loss calculations, which helps in ensuring proper maintenance and optimal functionality of electrical systems. It is important to utilize reliable testing equipment, like that from Globecore, to attain accurate measurements during this diagnostic process.

Zeolite catalyst regeneration is typically carried out through the following steps:
Burn-off of Carbon Deposits: The zeolite catalyst is heated to high temperatures (around 400°C to 600°C) in the presence of oxygen or air to burn off carbon or coke deposits that have accumulated during catalytic reactions.
Purging: After the burn-off, inert gases or air are passed through the zeolite to remove any remaining volatile compounds.
Restoring Active Sites: The temperature and environment are carefully controlled to ensure that the zeolite’s active sites, which were blocked by contaminants, are restored to their full functionality.
Cooling: Once the contaminants have been removed, the zeolite is cooled to operational temperatures and can be returned to service.
This regeneration process allows the zeolite catalyst to regain its activity for future catalytic cycles.