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Electrical Engineering formulas

130 results. Open any card and leave one value empty to calculate it.

Electrical Engineering

Gross induction motor efficiency

Electrical Engineering

\[\eta_{m} = \frac{P_{m}}{P_{t}}\]
GATE
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Gross motor efficiency

Electrical Engineering

\[\eta_{m} = \frac{P_{m}}{P_{t}}\]
GATE
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Heat Produced by Fuel

Electrical Engineering

\[Heat_produced_by_fuel_per_day = coal_consumption / day \cdot caloritic_value\]
GATE
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Hydel Power Work Done

Electrical Engineering

\[Work_done = WQH\]
GATE
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Hydro power

Electrical Engineering

\[P = \rho \cdot g \cdot Wh\]
GATE
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Hysteresis loss in motor

Electrical Engineering

\[P_h = K_h \cdot f \cdot B_m ^ ( 1.6 )\]
GATE
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Induced emf in the armature

Electrical Engineering

\[E_{a} = \frac{Z \cdot N \cdot P}{60 \cdot A}\]
GATE
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Lines Performance by Efficiency

Electrical Engineering

\[Efficiency = \frac{Power_{delivered\_at\_the\_receiving\_end}}{Power_{sent\_from\_sending\_end}} \cdot 100\]
GATE
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Lines Performance by Voltage Regulation

Electrical Engineering

\[Regulation = \frac{V_{r\_prime} - V_{r}}{V_{r}} \cdot 100\]
GATE
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Load factor

Electrical Engineering

\[Load_{factor} = \frac{Average_{demand}}{Maximum_{load}}\]
GATE
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Making Capacity

Electrical Engineering

\[Making_capacity = 2.55 \cdot symmetrical_breaking_capacity\]
GATE
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Maximum value of RRRV

Electrical Engineering

\[RRRV = w_n \cdot E_peak\]
GATE
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Mechanical power to electric power

Electrical Engineering

\[P_{conv} = T_{ind} \cdot \omega_{m}\]
GATE
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Monthly Average Load

Electrical Engineering

\[Monthly_{average\_load} = \frac{KWH_{delivered\_in\_one\_month}}{30 \cdot 24}\]
GATE
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Motor torque in terms of Tem

Electrical Engineering

\[T_{e} = \frac{2 \cdot T_{em}}{\frac{s_{mT}}{s} + \frac{s}{s_{mT}}}\]
GATE
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Net cross sectional Area transformer

Electrical Engineering

\[A_n = k_s \cdot A_G\]
GATE
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Net mechanical power output

Electrical Engineering

\[P_sh = P_g - Rotor_ohmic_loss - Friction_and_windage_losses\]
GATE
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No of brushes in Lap winding

Electrical Engineering

\[No_of_brushes = A\]
GATE
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No of brushes in wave winding`

Electrical Engineering

\[No_of_brushes = A\]
GATE
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Operation Factor

Electrical Engineering

\[Operation_{factor} = \frac{Service_{hours}}{Total_{duration}}\]
GATE
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Output or shaft power

Electrical Engineering

\[P_sh = P_m - Mechanical_losses\]
GATE
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Output or Shaft Torque

Electrical Engineering

\[Output_{or\_shaft\_torque} \cdot T_{sh} = \frac{P_{sh}}{Rotor_{speed}}\]
GATE
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Output power for a load torque

Electrical Engineering

\[T_{M} = \frac{P_{M}}{\omega_{s}}\]
GATE
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Overall Efficiency

Electrical Engineering

\[\eta_{overall} = \frac{\frac{Heat_{equvivalent\_of\_electrical\_o}}{p}}{Heat_{of\_combustion\_of\_coal}}\]
GATE
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