METREL MI 3399, Инструкция с упражнениями

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Power and Voltage Quality Trainer AD 2
– MI 3399
171
The Application Trainer will simulate an electrical system with the following
parameters:

Fundamental voltage: 230 V

Fundamental current: 1000 A

Load type: Inductive

Load character: Load (Consumption of electrical power)

Frequency: 50/60 Hz
The Power Master MI 2892 should be connected to the Application Trainer and set up
as described in section 3.2 Instrument Setup. It is good practice to observe the
Connection Check status in the MEASRUEMENT SETUP

CONNECTION SETUP
menu. If it's marked with an OK sign ( ), you can start observing measurements.
4.5.1 Recording energy
If we would like to monitor energy consumption, then the General recorder should be
started. From the MAIN MENU, enter the RECORDERS menu and then go to the
GENRAL RECORDER menu. Set up all parameters as shown in the figure below:
Figure 4-43: General record settings
After these changes have been made, run the recorder by pressing the F1 key. The
recorder can be stopped anytime by pressing the F1 (STOP) key. The instrument will
record consumed active and reactive energy from the moment we started the recorder
- for each phase separately and in total.
Energy measurement is divided in two sections: ACTIVE energy based on active power
measurement (kWh) and REACTIVE energy, based on fundamental reactive power
measurement (kVArh). Additionally energy and power is divided in two segments:
- Consumed energy (power) is energy consumed on consumer side. It is
represented with a positive sign (see Figure 4-49).
- Generated active energy (power) is energy generated by generator. It is
represented with a negative sign.