Control Panel Boards
The Motor Control Center The MCC enclosure protects personnel from contact with current carrying devices, and protects components from various environmental conditions. It is important that the camera is mounted to assure accessibility so that qualified (as a trained thermographer) can open the panel under load. There are different kinds and types of MCC, but generally speaking, an MCC looks like a row of file cabinets with each cabinet represents a section of MCC. The cabinet boxes represent the plug-in units that contain components of motor control. Three phases is distributed within the MCC bars, large metal current carrying bars. The horizontal bus provides a distribution of three-phase power from the main power grid. Vertical bar in each section is connected from it to individual MCC. Preparing and isolation barriers are provided to protect against fault conditions. Plug-in units of an MCC power stabs on the back so you can be connected to the vertical bars of power structure. Metering Panel Starting Your MCC Infrared Inspection Before opening the door panel or in a motor controller, enclosure prescan condition to ensure safe opening. If excessive heat on the surface of the door appears, special care must be taken when opening. Once the unit is open, begin both an infrared and a visual inspection to ensure that no hazardous conditions. Be systematic, while performing the infrared inspection. Remember that the system must be under load to perform the inspection. Working from left to right or follow the circuit through carefully inspecting all components. Look for abnormal thermal patterns caused by high resistance connections, overload or load imbalance. In three phase systems, this can be accomplished by phase comparison. Adjust the level and range in the infrared system to optimize the image. The correct setting to identify primary and secondary abnormalities. Stabs and bus connections to the main inspection points are important that are often overlooked or misdiagnosed. The inlet to the main horizontal bar usually located behind a cover or panel that is not articulated. These are typically bolted connections and may have parallel feeders. Bus connections stab in the back of the plug-in units are more difficult to inspect. The thermographer has no direct view of the connection, and the first indication of a problem can be seen in the drivers input power circuit breaker or fused disconnect. Remember, even if the small temperature increase identified at this point could mean serious trouble. DG Synchronizing Panel shiv electromac are the manufacturer and supplier of Motor Control Center Panel and Electrical Bus Duct Based at Ahmedabad