No.
Test
Test description
5
Polarity
Check
The test is performed connecting the high AC voltage source to the primary side, and
measuring the induced secondary voltage with the optional PLCK polarity sensor.
Input parameters are the following:
•
The test voltage
•
The generation duty cycle
•
The test result (OK or NO)
The display shows the test voltage, and records the test result of the different points
6
Tan(δ)
measures
The test is performed using the TD 5000 optional module, and then connecting the high AC
voltage source to test target.
Displayed parameters are the following:
•
Test type (1)
: Where the HV output is applied: in case of a specific device under test
(CT, VT, PT or bushing), the options are displayed
•
Capacitance (2)
: In case of a specific device under test (CT, VT, PT or bushing), the
options are displayed
•
Generation mode
: to execute a single shot, a voltage or a frequency gradient
•
Test mode
: It is selected in reference to the TD 5000 and the device under test
connection. In case of a specific device under test (VT, in this case), the more correct
test mode is automatically selected, considering also the selections (1) and (2)
•
Voltage/Frequency test table
: It allows to input the test voltage and frequency
•
Nominal Values
: Capacitance and TD reference values. In case of a specific device
under test (CT, VT, PT or bushing), these values are kept from the related headers
•
Temperature compensation: The Capacitance and TD values vary with the
temperature: optionally, the “k” factor is used to compensate the measures
•
Test table
•
Results table
•
Test voltage, current and frequency
•
Capacitance, Tan(δ), power factor (PF)
•
Power: active, reactive, apparent
•
Impedance: module, argument, components
7
Ratio
IEC61850-
9-2LE
Ratio measure and currents polarity for Not Conventional Transformers. The test is executed
applying current to the primary side and reading the corresponding “Sample Values”.
The test is executed using the test set remote connection with the PC, using the PDS program.
Input parameters are the following:
•
Nominal primary current
•
Test current and frequency
•
The sender MAC address
•
The recipient MAC address
•
The svID (sample value ID)
•
The Stream Number
The results are the following:
•
The primary current
•
The measured Sample Values
•
The angle between the primary current and the Sample Values
•
Corrected primary current, polarity, error ratio and error %
Table 46 - Voltage Transformers tests (2/2)
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