Midwest Three-phase Power Parameters Tester

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1. Main functions and features Three-way mutual insulation voltage input channel isolation, a current three-way Clamp current transformer input, safe and reliable. Can be continually measured in the circuitry at the same time AC voltage measurement 1-3 Road 1 - 3-way exchange of the current amplitude and the phase of the measured single / three-phase power and power factor, frequency measurement. Vector plans to measurement results, tables, multiple-access format. 1) Set Table voltage three-phase, three-phase pincers ammeter, phase table, phase sequence tables, frequency meter, power meter, power factor function in a seven table; 2) touch-screen operation, the Chinese character handwriting input; 3) 320 x 240 high-resolution color TFT screen, clear graphics display delicate; 4) measurement results in a variety of ways, real-time display vector maps, discriminant wiring errors; 5) all six input isolation, support a variety of wiring, can be arbitrary measurement between the two input phase; 6) voltage and current TRMS measurement principle, automatic range; 7) support software user calibration; 8) measurement data storage without quantitative restrictions, the measurement results can be joined Note, automatically records time measurement, the operator and other information; 9) ultra-low-power, two AAA batteries can be on the 5th working continuously for more than 36 hours and a standby time longer support an external power supply and charging; battery replacement convenience, the factory equipped with large-capacity rechargeable battery, and can also use batteries; 10) new small high-precision current clamp; 11) data can be exported to standard Web format, with forms and vector maps, editing and production of reports; 12) supports data upload computer, using computer data on the Pocket PC browser, export, edit, print, backup and restore functions; 13) infrared printer scene A4 colour printing; 14) on-line electronic documents, ready access to help; 15) software to support Microsoft's latest mobile operating system, Windows Mobile 5.0 and Pocket PC2003, system functions can be extended with software upgrades. 2. Instrument uses The instrument is the measurement of electric power system protection and professional, a second loop of a new generation of instruments at the scene. Also widely used in electrical equipment manufacturing, petrochemicals, iron and steel metallurgy, railway electrification, scientific research teaching departments. Have the following purposes: 1) Measurement of the needs of single and three-phase voltage, current, phase, power factor, power, frequency of occasions; 2) protection of the group phase current transformer relationship between CT and directly display and storage phase diagram; 3) inspection active / reactive power meter wiring is correct, that it is directly stored phase diagram; 4) direct measurement of line power factor angle, the calculation of compensation capacitor, reactive power compensation; 5) inspection transformer / electrical wiring group; 6) discriminant emotional or capacitive circuit; 7) Determination of the three-phase, phase sequence; 8) judgement watt-hour meter running speed; 9), as leakage current meter use. 3. Handheld computer functions 1) Office of portable Pocket Word / Excel, notes, contacts, tasks, calendar, digital audio recording functions; 2) Pocket PC with USB interface, infrared interface, the standard serial port, and PC, notebook connection, a high-speed file transfer and synchronization; also through CF or SD expansion of storage capacity and interface functions among a variety of ways The exchange; 3) In his spare time watching movies, listening to music, playing games, are happy bit in the handheld. 4. Specifications Participation in the provision of better work conditions, the basic parameters of the measurement error limits shown in the table below: Error parameter range limit resolution (1 Year) Voltage 500.0V 0.1V ± (0.2% range) Current 200mA 0.1mA ± (0.3% of reading +0.2% range) 2A 1mA 10A 10mA Phase 360.0 ° 0.1 ° ± 1.0 ° 10.00Hz frequency ~ 80.00Hz 0.01Hz ± 0.02Hz Power (PF = 1.0) 0.1W ± (0.5% of reading +0.5% range) At the rated working conditions, the additional parameters of the measurement error is not more than the basic error. 5. User interface 1) measurement results show a variety of ways, information-rich visual; In tabular form with the three-way screen display or arbitrary way of AC voltage, AC current amplitude and phase angle, power factor, Active, Active Power three-phase, three-way frequency and voltage, the phase angle between the current 23, and other parameters. Also automatically displays the measurement time. True Color VCG delicate clear, different input distinguish between different colors, measuring angles shown in the direction of the arrow, clear intuitive. The same screen also showed that the input amplitude and frequency. Measurement results include the date, the operator, and other information can be handwritten remark. 2) all six input isolation, support any wiring; Three input voltage U1, U2, U3 mutual isolation, and can enter any point of voltage (not including the total voltage), the Current Clamp current transformer input. All six input isolation, and wiring to support arbitrary manner, and safe and reliable. For example: access UAN U1, U2 can access UAB, U3 can access UBN; its phase diagram shown as pictured, U2 (UAB) U1 (UAN) and the U3 (UNB) of the volume and shows that the phase voltage and line voltage between the amplitude and phase relationships. Phase measurement can be arbitrary input to the benchmark measurement of arbitrary signals phase. One way or can be imported 2 Road. Measurement phase, if U1 input, based on the U1, no U1 input, to I1 as the benchmark, the benchmark followed by U1 choice, I1, U2, I2, U3, I3. 3) vector mapping can be set based on user habits on their own; Angle is the direction can be set clockwise direction, but also can be set to anti-clockwise; 0 ° angle of direction can be set to 12 o'clock bell direction, but also can be set 3:00 bell or direction of the base amount is usually set to 0 ° direction, can also be set to 330 ° direction. If the benchmarks set in the direction of 330 °, the remainder of phase angle in accordance with the same benchmarks in the relationship between the automatic display correctly. Usually, phase voltage UAN of the benchmarks, as established benchmarks of 0 ° direction as the base line voltage phase of UAB, to set benchmarks in the direction of 330 °. Benchmark Lianglu 0 ° or 330 ° phase diagram shown in Figure respectively. Benchmarks of U1 0 ° direction benchmarks of 330 ° direction U1 Pocket PC set up after revision, the use of SY3000-PC software in the computer data to handheld computers still use handheld computers set up to map the phase diagram. 4) Pocket PC browser on the measurement data storage, export, edit, print convenient; Measurement results stored information-rich, easy navigation here, no records storage limit; support infrared printer scene A4 colour printing, data can be exported to standard Web format, with forms and vector maps, editing and production of the report. 5) on-line electronic documents, ready access to help; 6) Pocket PC can be connected with the use of computer resource management for the Pocket PC file management; 7) SY3000-PC procedure, the computer can edit, print stored in the handheld computer data, data backup to the hard drive, can also be derived as a phase diagram form and the standard page document to facilitate the formation test report.

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Midwest Group

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