Tag: Transformer Losses Measuring

Transformer Losses Measuring

  • Transformer Edition Power Analyzer PPA5500-TE

    Transformer Edition Power Analyzer | PPA5500-TE

    Transformer Edition Power Analyzer - Overview

    The PPA5500-TE provides unrivalled measurement integrity, reliability and accuracy. Each and every PPA5500-TE is rigorously tested within N4L’s ISO17025 Accredited Power Laboratory in which specialised power calibration from 40Hz to 450Hz is performed alongside N4L’s well-documented wideband calibration, up to 2MHz. The PPA5500-TE is compliant to IEC60076-8 and provides a 3-year warranty as well as a 2-year calibration interval. Power Transformer loss analysis becomes challenging when the transformer is off-load (for example whilst performing core loss analysis), this test condition requires the power analyzer to exhibit exceptional phase angle accuracy and repeatability. The PPA5500-TE provides market-leading low power factor analysis, supplied with UKAS ISO17025 certification.

    Transformer Edition Power Analyzer - Features

    • 0.07% Nominal Power Accuracy
    • 0.55% Power Accuracy at PF=0.01
    • 0.003° Phase accuracy
    • Widest Voltage, Current and Frequency range in the market
    • Unrivalled Performance, Unquestionable Traceability

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  • Precision Power Analyzer PPA5500

    Precision Power Analyzer | PPA5500

    Precision Power Analyzer - Overview

    The PPA5500 Power Analyzer is a compact, cost-effective, leading power measurement performance instrument. It has exceptional accuracy and stability in the most demanding of power applications. The Power Analyzer 5500 series extends the power analysis range for those who require the ultimate power analysis product.

    The PPA5500 adds increased voltage and current measurement ranges, greater processing power, increased memory, a real-time clock, high contrast visible colour display, 1GB non-volatile internal memory, external USB memory port,  wide frequency range and exceptional noise rejection.  A 2MS/s sample rate, alongside “True Real-Time” no gap analysis is a formidable combination for power analysis. The analogue front-end design includes the proprietary "Planar shunt technology". This instrument provides exceptional measurement stability and accuracy. The phase angle accuracy of the PPA5500 is 0.005 degrees which are perfect for transformer loss analysis testing at very low power factors.

    Precision Power Analyzer - Features 

    • 0.01% Basic accuracy
    • Frequency range DC and 10mHz to 2MHz
    • High precision internal shunts Superior accuracy to any external shunt
    • 5 millidegree phase accuracy necessary for low power factor applications
    • Up to 50 Arms (1000 Apk) & 1000 Vrms (3000 Vpk) direct input
    • Low current (10Arms), Standard (30Arms), and High current (50Arms) options
    • High-speed sampling on all channels
    • True real-time analysis with no measurement gap
    • 1, 2, or 3 phase versions master-slave mode for 4, 5, or 6 phase
    • Real-time Digital, Tabular, Graphic, and Oscilloscope displays
    • Simple BNC connection of N4L shunts for high-current applications
    • RS232, IEEE 488, USB, LAN, Torque, Speed and Extension ports

    https://www.youtube.com/watch?v=ntKljPrXvYM

     

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    Three Phase Transformer Measuring Bridge MLS 7100

    Three Phase Transformer Measuring Bridge | MLS 7100

    Three-Phase Transformer Measuring Bridge - Overview

    The MLS 7100 was particularly designed to simplify the determination of transformer core and copper losses, which is an ideal choice when working on site. The measuring bridge features open-circuit as well as short-circuit measuring. Many transformers can be directly connected to the MLS 7100 without needing further transducers. Core losses are an important transformer quantity in electrical efficiency, operating expenses, and the overall transformer value.

    Steel losses are typically determined using open-circuit measurement, as a relatively small magnetising current is flowing. Using this technique, the copper losses are minimized due to the square correlation of power and current. Copper losses are determined using short circuit measurement, as the magnetising modulation of the steel core should be minimized. In addition, the short circuit voltage is determined this way, which is also an important quantity.

    Three Phase Transformer Measuring Bridge - Features

    • Open circuit measurements
    • Short circuit measurements
    • Free selectable voltage and current dividers
    • 1000 kV with transducer
    • 1000 kA with transducer
    • 550 V (chained) 6 A directly connectable
    • Measures and displays:
      • Voltages
      • Currents
      • Power
      • Short Circuit Values
      • Frequency
    • Centronics printer port
    • RS232C port for external control

    Datasheet

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