Isolated power panels are used in group 2 rooms in medical locations and are composed of auxiliary devices and test combinations such as isolated transformer, insulation monitoring device and insulation fault locator devices.
In the IT system, unlike the TN and TT systems, when an insulation fault occurs, IT systems ensure that there is no electrical problem, preventing circuit breakers from tripping and system interruption. Medical equipment continues to operate, fault currents are reduced to non-critical values, and power outages are prevented.
The insulation level is continuously monitored by the isolated power panels and if a value lower than 50 kΩ is detected, an alarm is generated and logged. Said alarm can also be displayed via the control panel in the operating rooms and local and remote alarm panels.
Insulated power panels, which have a fault location detection system, have the ability to detect on which line the insulation fault has occurred. Thanks to this function, the time required to detect the location of the insulation fault is reduced.
The following medical locations, which are of vital importance in hospitals and where medical devices are directly connected to patients, are defined as group 2 rooms according to the IEC 60364-7-710 standard, and isolated power supply systems are used in these rooms.
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