Iterative Algorithm of three-phase PWM Waveforms Data in Nonsinusoidal Modulation;
Field examples show that log data collected with two-phase-flow tool may misinterpret the primary liquid or water-producing zones in a well with three-phase-flow.
Each of them consists of a three-phase asynchronous motor, an eddy-current coupling and a tachogenerator.
The system can be DC motor testing, general three-phase motor testing, automobile starter motor testing, car wiper motor testing, motor testing deceleration, electric bicycle motor parameters.
Whole three-phase core is made of three curved silicon steel belt material through rolling, without clearance and seam. The tank has features of low loss, low exciting current, low noise and others.
A good stability of temperature resistance values at the three-phase point of water is obtained when the thermometers are tested in liquid nitrogen, liquid hydrogen and liquid helium repeatedly.
Method to three-phase current reconstruction of PMSM compressor
Double-three-phase Permanent Magnet Synchronous Motor Drives Control for the Vessel Electric Propulsion;
Dongfang Morning Post: Are the "first-phase actions and measures" you mentioned just now based on the first-phase steps proposed in the three-phase blue print drawn by the ROK?
DBW, SBW series single-phase and three-phase super power voltage regultor of new age having the advantages of large capacity, high efficiency, wide range, high precision, strong protection, without wave-form distortion, reliadle operation and casy installation, etc.
Meter box is a distribution box for single-phase and three-phase watt-hour meter, its inner electric switch components adopt modular switch, it is used for distribution systems in civil building, industrial and mining enterprise, as well as aloft operation power grid.
three-phase four-wire system
" Output, voltage and speed ratings of three-phase induction motors (from 0.6 to 100kW)"
This paper describes the basic working principles and control methods of three-phase high- frequency boost & buck IGBT SPWM rectifiers.
A new technique of processing waste from manufacturing Ni-Cd batteries by sulphuric acid-curing and leaching in three-phase fluidized reactox has been proposed.
Through the analysis about the measure data of three-phase, four wires electric meter in the different modes, we can know that whether the electric meter is connected to earth wire or not, the error is different.
Thailand is in the final phase of the three-phase WHO Good Governance for Medicines programme (GGM) and there are already a number of significant achievements.
The protection functions include three-section over-current protection, inverse-time over-current protection, three-phase one-shot no-voltage auto-recloser and so on.
Based on the decoupling of fundamental power flow and harmonic power flow, a separate iteration method for calculating three-phase asymmetrical harmonic power flow in power system is presented.
Abstr: To deal with a power system's three-phase unbalance caused by single or two phase load, a novel impedance matching balance transformer is presented.
A topic of great practical and particular industrial interest in recent years has been three-phase azeotropic distillation or heteroazeotropic distillation.
Three-dimensional, three-phase, black-oil mathematical models are established for the gas injection process in reservoirs.
About the mechanism of adjusting crossbeam balance, the three-phase blend stepping motor take the place of the A. C. motors, the coder as a feedback device, then make up of a closed-loop system.
This paper studied the three-phase PWM(pulse width modulation) rectifier in dual PWM variable frequency speed regulation system.
If no open phase protection is available during the operation course of three-phase equipment, it shall operate abnormally under open phase condition or shall be burnt if the case is serious.
A simulation model of the three-phase rectifier is described, and a CSimulateBase class and a CRectifier class are designed by the means of Object-Oriented method.
It's significant to study the regulation of active power of three-phase synchronous generator by way of the alternating power source of three-phase industrial frequency.
three-phase four-wire watt-hour meter
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