Maximum demand indicator
Rate of demand of an electric appliance From Wikipedia, the free encyclopedia
Maximum Demand Indicator (MDI) is an instrument for measuring the maximum amount[clarification needed] of electrical energy required by a specific consumer during a given period of time.[1] MDI instruments record the base load requirement of electrical energy. They can also measure the peak load, but are unable to record sudden short circuit or high motor starting currents.
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The main parts of MDI are:
- Dial connected with moving system
- Pointer on dial
- Reset device
- Fraction device
- Indicating pin
MDI is often available as a built-in feature of three phase energy meters.
Maximum demand is calculated as: Maximum Demand(KW)=Maximum Energy Recorded(KWh)⁄Time(hours)
References
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