enow.com Web Search

  1. Ads

    related to: kva calculator for transformers 4

Search results

  1. Results from the WOW.Com Content Network
  2. Per-unit system - Wikipedia

    en.wikipedia.org/wiki/Per-unit_system

    In the power systems analysis field of electrical engineering, a per-unit system is the expression of system quantities as fractions of a defined base unit quantity. . Calculations are simplified because quantities expressed as per-unit do not change when they are referred from one side of a transformer to t

  3. Mathematics of three-phase electric power - Wikipedia

    en.wikipedia.org/wiki/Mathematics_of_three-phase...

    For example, balanced two-phase power can be obtained from a three-phase network by using two specially constructed transformers, with taps at 50% and 86.6% of the primary voltage. This Scott T connection produces a true two-phase system with 90° time difference between the phases.

  4. Scott-T transformer - Wikipedia

    en.wikipedia.org/wiki/Scott-T_transformer

    A Scott-T transformer or Scott connection is a type of circuit used to produce two-phase electric power (2 φ, 90 degree phase rotation) [1] from a three-phase (3 φ, 120 degree phase rotation) source, or vice versa. The Scott connection evenly distributes a balanced load between the phases of the source.

  5. Split-phase electric power - Wikipedia

    en.wikipedia.org/wiki/Split-phase_electric_power

    The phase shift in Europe is 120°, as is the case with three-phase current. That's why we calculate 130V * √3 = 225V. A three-phase final step-down transformer is then used. One house gets phases A & B, the next house gets phase B & C, the third house gets phase A & C.

  6. Buck–boost transformer - Wikipedia

    en.wikipedia.org/wiki/Buck–boost_transformer

    Buck–boost transformers can be used to power low voltage circuits including control, lighting circuits, or applications that require 12, 16, 24, 32 or 48 volts, consistent with the design's secondaries. The transformer is connected as an isolating transformer and the nameplate kVA rating is the transformer’s capacity. [2]

  7. Volt-ampere - Wikipedia

    en.wikipedia.org/wiki/Volt-ampere

    VA ratings are also often used for transformers; maximum output current is then VA rating divided by nominal output voltage. [5] Transformers with the same sized core usually have the same VA rating. The convention of using the volt-ampere to distinguish apparent power from real power is allowed by the SI standard. [6] [page needed]

  8. Electric power distribution - Wikipedia

    en.wikipedia.org/wiki/Electric_power_distribution

    Transformers step down transmission voltages, 35 kV or more, down to primary distribution voltages. These are medium voltage circuits, usually 600–35 000 V. [1] From the transformer, power goes to the busbar that can split the distribution power off in multiple directions. The bus distributes power to distribution lines, which fan out to ...

  9. Orders of magnitude (current) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(current)

    400 V low voltage secondary side distribution transformer with primary 12 kV; 200 kVA (up to 1000 kVA also common) [7] 10 3: 2kA 10.5 kV secondary side from an electrical substation with primary 115 kV; 63 MVA [8] 9.3 kA 2.7V, Ultracapacitor short circuit current [9] 10 4: 25 kA Lorentz force can crusher pinch [10] 30 kA Typical lightning ...

  1. Ads

    related to: kva calculator for transformers 4