transformer

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Related to primary coil: secondary coil, secondary winding

transformer

 [trans-for´mer]
an induction apparatus for changing electrical energy at one voltage and current to electrical energy at another voltage and current, through the medium of magnetic energy, without mechanical motion.
step-down transformer one for lowering the voltage of the original current.
step-up transformer one for raising the voltage of the original current.
References in periodicals archive ?
Concerning the electromagnetic safety, the magnetic flux density was measured equal to 13.8[micro]T at a distance of 60cm from the center of the primary coil (Figure 13), which is well below the limits set by the ICNIRP guidelines (27[micro]T and 100 [micro]T for the general public and the occupational exposure to EM fields respectively) [38].
For the AC case, a 1 kHz sinusoidal time-varying current drives the primary coil. This can either induce currents in the secondary coil or induce a voltage difference if the coil is modeled as an open circuit.
In cooler temperatures, the three-way valves reverse position, and the DOAS primary coil becomes a heating coil.
The processes related to the energy interactions at the primary coil and during the introduction of fresh air were not studied in detail as a part of this project.
The total flux Ftotal permits to find the dimensions of primary coil that, when the distance between coils and the dimensions of secondary coil (that is powering the active tag) are given, will conduct to a maximal value of the flux generated by the primary coil into the secondary coil when the those two coils are coaxial [4].
Wireless charging operates in a near field condition in which the primary coil produces a magnetic field that is picked up by the secondary coil in close proximity.
In larger furnaces with a structural steel frame, the primary coil is backed by yokes which surround the entire refractory-lined melting hearth.
Tenders are invited for For repaiirng and rewinding of secondary and primary coil of welding machine, indark make at mudidih colliery under sijua area
Tenders are invited for Primary Coil Top Copper Part No- 1611637-009 Model No- Thh630 Make Esab
Primary Coil Wound With Insulated Alum.Conductor Of Size 5X3.2 Withour Control Winding 01No.
Tenders are invited for Primary Coil For Pioneer Furnace Model Rskms 150/500 180Kva Capacity 415 V/ 3Phase / 50Hz ,Air Cooled.