详情
HAEFELY MIDAS 2881 Mobile Insulation Diagnosis & Analysing System
The MIDAS 2881 is a portable power factor tester for periodic maintenance and inspection of high voltage insulation losses of electrical apparatus, especially in the harsh electrical environments experience in substations and other field locations.
Designed for testing at local power-line frequency, the MIDAS automatically measures and records dissipation factor (tan δ), power factor (cos ) and all other relevant values of impedances. Damage or changes in the insulation material are detected rapidly and reliably.
Features
- Measures Dissipation Factor (tan δ) and Power Factor (cos ) with built-in high voltage supply up to 15 kV, 4 kVA, 15 … 1000 Hz including manual and automatic (sequencer) test operation.
- Accurate, reliable, rugged, and safe construction with built-in, long-term stable nominal capacitor.
- Low PD level Due to the state of the art high voltage power supply with filters.
- Easy to operate including advance measurements like Swap Frequency on Bushings, Short Circuit Impedance and Excitation Current.
- Stand alone Bridge option with additional measuring capabilities like Quality Factor, Power, Losses, Impedance, Inductance, Reactance, Spectrum Analyzer, Digital Scope and Data Logger.
Accessories
- MIDAS Office: Software for PC test preparation, data visualization, and staff education.
- 288x TEMP: Laser infrared, contact-less thermo/hygrometer. For determination of tank (oil) temperature, air temperature and air humidity.
- 288x SAFE: Safety strobe light with magnetic base (e.g. for mounting on a transformer tank), providing visual warning of high voltage presence.
- 288x CASE: Additional rugged field case for safe transportation.
- 288x RACK: Mechanical kit for 19" rack mounting.
- 6835: Test cell for liquid insulation samples, max. 10 kV.
- 5288a: External resonating inductor (manual tuning), 10 kV 40 kVA.
- 5289: External resonating inductor (motorized turning), 15 kV 100 kVA.
- 288x WE2: Warranty extension to 2 years for MIDAS.
- 288x WE3: Warranty extension to 3 years for MIDAS.
- 5286 / 5287: Current Booster for MIDAS.
Applications
- Power Transformers
- Distribution Transformers
- Instrument Transformers
- Rotating Machines
- Liquid Insulation
- Bushings
- Cables
- Capacitors
- Circuit Breakers
- Surge Arrestors
Designed by Tettex Instruments
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