T&R 200A-3PH mk2, Руководство по эксплуатации и техническому обслуживанию

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1.3.7.1 Auxiliary input ranges
The following ranges are provided:
Range Resolution Accuracy
Frequency (V) 40.00-99.99Hz 0.01Hz

0.2% rdg

2d
Frequency (I) 40.00-99.99Hz 0.01Hz

0.2% rdg

2d
Phase (V)

180.0°
0.1°

3 degrees
Phase (I)

180.0°
0.1°

3 degrees
AC Voltage 0-300.0Vac rms 0.1V

0.7% rdg

5d
AC Current 0-10.000Aac rms 0.001A

0.7% rdg

5d
1.3.8 Voltage Measurement
To measure external voltages, connect the signal to the aux metering terminals marked ‘COM’
and
‘300V’. Ensure that the voltage to be measured is switched OFF when connecting the
leads.
The type of reading to be taken should then be selected using the aux metering rotary
selection switch. The frequency of the signal and phase relative to the main output current
may also be measured.
When measuring voltages, ensure that 300V ac is not exceeded on the 300V terminal.
1.3.9 Current Measurement
To measure current, connect to the ‘COM’ and ‘10A’ aux metering sockets. The aux metering
rotary switch selects the reading type.
1.3.10 Frequency Measurement
The frequency of the input signal may be measured for either a voltage or current input. To
measure frequency, the voltage or current must be greater than 1.6V or 0.03A respectively.
1.3.11 Phase Measurement
Switch to phase mode to measure the phase between the main current output selected by the
phase select switch and either the voltage or current input. In each case, the current or voltage
must be greater than 5% of the full scale of the range for the phase to be displayed and more
than 10% for the stated accuracy to be guaranteed.
1.3.12 Timing System Specification
The 200A-3PH mk2 is fitted with an integrated timing system that is linked to the main output
and two sets of contact inputs. The system is highly flexible, and allows for the timing of all
common protection devices and trips. The timer may also be used to time external events not
linked to the output of the set.