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Mobile Insulation Diagnosis & Analysing System - 17027 MIDAS
Mobile Insulation Diagnosis & Analysing System
Periodic maintenance and inspection of high voltage insulation losses is performed on power
transformers, bushings, motors, generators, etc. The MIDAS is a valuable tool for such measurements especially in the harsh electrical environments experienced in substations and other field locations. Designed for testing at local power-line frequency (50Hz or 60Hz), MIDAS automatically measures and records dissipation factor (tan The rugged construction and large pneumatic wheels make transportation and access to remote locations easy. A large touch sensitive, sunlight readable colour display and the graphical user interface create a highly visual environment with clear illustration of the instrument’s advanced measuring and analysing features. Predefined test sequences linked with limiting values (e.g. previous measurements) guide the user automatically through the test sequence and allow to obtain a first assessment result on-site. Built-in standard interfaces (USB, Ethernet) enable easy data exchange with a host computer for data collecting, reporting, printouts, statistics and advanced analysis.
FEATURES
To analyze the condition and quality of high voltage insulation, the system performs automated measurement of: Dissipation Factor (tan ) and Power Factor (cos ) Short Circuit Impedance and Excitation Current Additional measuring capabilities like Capacitance, Quality Factor, Frequency, Voltage, Current, Power, Losses, Impedance, Inductance, Reactance, Spectrum Analyzer, Digital Scope and Data Logger Frequency Response Analysis (optional; built-in or external remote controlled unit) ), power factor (cos ) and all other relevant values of impedances (capacitive, inductive and resistive). Damage or changes in the insulation material are detected rapidly and reliably. Furthermore the optional build-in 3 phase Transformer Turns Ratio Meter and/or Frequency Response Analyser help to detect faulty
transformer windings as well as defective tap positions. Turns ratio, voltage ratio, phase displacement (optional; built-in or external remote controlled unit) Trending Analysis function – get a first graphical on-site assessment Manual and Automatic (Sequencer) test operation. Built-in high voltage supply up to 15kV, 4kVA Built-in, long-term stable standard capacitor Rugged, reliable and safe construction State-of-the-art integrated PC running actual Windows platform with advanced user interface
BENEFITS
Shortest Measuring Time Shortest equipment set-up and measuring time by an “all in one” unit. High output power allows testing of biggest class power
transformers in shortest time. Easy to operate Self-explanatory user interface with a large graphical colour TFT touch screen. Manual and Automatic test operation. Software assisted test planning, preparation, execution and first assessment. Highest Accuracy Highest accuracy in field-testing using latest measuring techniques as well as highest long-term stability of system accuracy by using a gas-insulated standard capacitor as internal reference arm and self-calibrating measurement sensors. Advanced interference suppression Advanced interference suppression (patented) allows measurement at local power-line frequency as recommended in the related standard IEEE/ANSI 57.12.90
a brand of Haefely is a subsidiaryof Hubbell Incorporated. Haefely has a policy of continuous product improvement. Therefore we reserve the right to change design and specification without notice. LL_MIDAS288x_0809_RF.doc
