primary frequency

primary frequency

[′prī‚mer·ē ′frē·kwən·sē]
(communications)
Frequency assigned for normal use on a particular circuit or communications channel.

primary frequency

The radiotelephony frequency assigned to an aircraft as a first choice for air-ground communications in a radiotelephony network.
References in periodicals archive ?
The project will provide the grid with a real-time primary frequency regulation service contributing to its stability.
Summary: New Delhi [India], Sept 27 (ANI): Siemens Limited has announced commissioned India's first condensate throttling-based primary frequency control solution at National Capital Power Station (NCPS), NTPC Dadri (Stage 2, Unit 6).
Primary frequency and voltage along with secondary capacity and voltage.
It is also the first grid-scale energy storage system in the United States that will be used to provide primary frequency response, an essential reliability service.
The BPA encompasses the company's entire line of radio products and accessories operating in all the primary frequency bands.
The North American Electric Reliability Corp (NERC) task force had defined six requirements for generation that supports grid stability: voltage, volt-ampere reactive (VAR) control and/or power factor regulation; fault ride through; real power control, ramping, and curtailment; primary frequency regulation; frequency droop response; and short circuit duty control.
In this option, the commercial entity would use one frequency band but could switch to another one temporarily so the DoD could use the primary frequency.
These services can be divided into three categories which are inertial response, primary frequency response, and frequency regulation, which are all depicted in Fig.
To isolate the primary frequency at each location, the use of Fast Fourier Transform (FFT) Spectrum Analyzer (FIGURE 9) and sophisticated filtering was required.
In this way, the main features of UCs, such as rapid response (ms), high power (hundred MW), high efficiency and four quadrant control can be effectively used in order to store excess energy for substituting for the generation reserve during the action of the primary frequency control.
Then lead made the call to check in on the primary frequency, and I replied, "Stand by.
Maximum deviation of electric power system, which could be controlled by primary frequency control system, depends on the droop of speed regulators participating in the primary frequency control units, total nominal capacity of power units and the factor of dependence of power load on frequency (load damping).