Minimum inductance

The European specification for unleaded gasoline has set a minimum induction period of 360 minutes. 

The number of turns for both windings is determined by calculating the minimum inductance and the number of turns for the lowest current output. This is done using Equations 3.32 and 3.29. The other winding will have the identical number of turns. 

Oxidation. Based on the Norma-Hoff max oxidation bomb test, the phosphorus shall show the following oxidation characteristics Induction period — the minimum induction period shall be 20 hours. Oxidation rate — the maximum... 

As a result of more detailed modeling of current-mode control, optimum relationships for the minimum inductance required (to avoid subharmonic instability) have been generated as follows... 

In effect, this means we need a certain minimum inductance for a given slope compensation, to remain stable. Alternatively, we need a minimum slope compensation for a given inductance, to remain stable. However, slope compensation, the way it is commonly applied, affects the peak current limit too, and that can affect the output power capability of the converter. We have to be careful about that too. In general, we should check that we are being able to meet the required output power, at both ends of the input voltage range. 

In addition, the half-switching-frequency pole is sufficiently damped — by introducing the right amount of minimum inductance vis-a-vis the applied slope compensation (or the appropriate amount of slope compensation, based on the desired or optimum value of inductance — as for example for a current ripple ratio of 0.4). 

Grade Nominal Reference Maximum specific total Minimum induction in a direct or Conventional... 

NEMA, in its publication MG-1 for induction Motors, has prescribed four rotor designs. A, B, C, and D, covering almost all sizes of LT motors, to possess a prescribed minimum 77, Tp and pull-up torques. These torques are generally as drawn in Figure 2..3 to meet all normal industrial, agricultural or domestic needs. (Refer to the said publication or lEC 60034-12 for values of these torques. lEC 60034-12 has also provided similar stipulations.)... 

The minimum ac output filter inductance (refer to Section 3.5.5)... 

Determining the primary inductance. I am assigning a maximum on-time of 7 uS, which would occur at the minimum input voltage. The primary inductance would then be... 

Minimum Igniting Current (MIC) Ratio The ratio of the minimum current required from an inductive spark discharge to ignite the most easily igni table mixture of a gas or vapor, divided by the minimum current required from an inductive spark discharge to ignite methane under the same test conditions. 

The rotary compressor is adaptable to direct drive by the use of induction motors or multi-cylinder gasoline or diesel engines. These compressors are compact, relatively inexpensive, and require a minimum of operating attention and maintenance. They occupy a fraction of the space and weight of a reciprocating machine having equivalent capacity. 

Thus minimization of NR must minimize Nb, since one realization of the minimum Nb can be represented in this way. By induction, the procedure minimizes Nb. 

A gas-inducing agitator system is an alternative to a multistirrer system. It contains a hollow shaft with orifices above the liquid level and a hollow impeller. A typical hollow impeller consists of a tube that is, at the centre, connected to the hollow shaft. Both ends of the impeller are cut at 45 so that, at rotation, the open portions of the tube are at the near side of the stirrer. There are several modifications of this design. Obviously, there is a minimum impeller speed at which the onset of gas induction occurs. Loop reactors are also successfully used. 

Any given machine will have minimum and maximum allowable steam flows. In the case of extraction and induction machines, there will be minimum and maximum flows allowable in each turbine section. These minimum and maximum flows are determined by the physical characteristics of individual turbines and specified by the turbine manufacturer. 

Interesting properties of the induced dipole polarizable model can be derived by simple mathematical manipulation. A particularly important one relates the minimum of the energy with converged values of the induced dipole. By combining Eqs. (9-9) and (9-10), the induction energy can be rewritten as... 

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