When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Prospective short-circuit current - Wikipedia

    en.wikipedia.org/wiki/Prospective_short-circuit...

    The resistance path is the total resistance back through the supply transformer; to measure this an engineer will use an "earth fault loop impedance meter". The application of a low voltage allows a small current to pass from the socket back through earth to the supply transformer and distribution board.

  3. Zigzag transformer - Wikipedia

    en.wikipedia.org/wiki/Zigzag_transformer

    With negligible current in the neutral under normal conditions, an undersized (unable to carry a continuous fault load) transformer may be used only as short-time rating is required, provided the defective load will be automatically disconnected in a fault condition. The transformer's impedance should not be too low for desired maximum fault ...

  4. Outage management system - Wikipedia

    en.wikipedia.org/wiki/Outage_management_system

    Key functionalities include outage detection, fault location identification, restoration prioritization, and workforce management. OMS solutions leverage data analytics and the Common Information Model (CIM) to enhance network visibility, optimize response times, and improve overall grid reliability. These systems also support switching order ...

  5. Condition monitoring of transformers - Wikipedia

    en.wikipedia.org/wiki/Condition_monitoring_of...

    Condition monitoring of transformers in electrical engineering is the process of acquiring and processing data related to various parameters of transformers to determine their state of quality and predict their failure. This is done by observing the deviation of the transformer parameters from their expected values.

  6. Breaking capacity - Wikipedia

    en.wikipedia.org/wiki/Breaking_capacity

    Since practical calculations involve a number of approximations and estimates, some judgment is required in applying the results of a short-circuit calculation to the selection of apparatus. [4] Making capacity i.e. maximum fault current , device can carry, if it is closed in to the fault should be considered.

  7. Power system simulation - Wikipedia

    en.wikipedia.org/wiki/Power_system_simulation

    Short circuit analysis analyzes the power flow after a fault occurs in a power network. The faults may be three-phase short circuit, one-phase grounded, two-phase short circuit, two-phase grounded, one-phase break, two-phase break or complex faults. Results of such an analysis may help determine the following: Magnitude of the fault current

  8. Fault current limiter - Wikipedia

    en.wikipedia.org/wiki/Fault_current_limiter

    A fault current limiter (FCL), also known as fault current controller (FCC), [1] is a device which limits the prospective fault current when a fault occurs (e.g. in a power transmission network) without complete disconnection. The term includes superconducting, solid-state and inductive devices. [2]

  9. Current transformer - Wikipedia

    en.wikipedia.org/wiki/Current_transformer

    A high-voltage current transformer may contain several cores, each with a secondary winding, for different purposes (such as metering circuits, control, or protection). [7] A neutral current transformer is used as earth fault protection to measure any fault current flowing through the neutral line from the wye neutral point of a transformer.