Benning PV 1-1+ - Operation; Requirements for tests and measurements

5.1 Requirements for tests and measurements
Operation
5290 / 06/2023 enBENNING PV 1-1+24
5 Operation
The device enables you to carry out various tests and measurements.
5.1 Requirements for tests and measurements
Please observe the following basic requirements for tests and measurements:
• Before carrying out tests and measurements, disconnect all poles of the PVgenerator from
the PVinverter. The PVgenerator must be isolated from the electric power supply! Neither
the positive nor the negative pole of the PVgenerator must be earthed!
• Make sure that all switching and disconnecting devices are open and all PVstrings are
insulated from each other.
• Please observe that the PVgenerator must not exceed the maximum open-circuit voltage of
1 000V, the maximum short-circuit current of 15A and the maximum DCpower
(P=V
OC
xI
SC
) of 10kW.
• Carry out the tests and measurements only on individual PVstrings.
• No power optimisers are installed in the PVgenerator.
• Only connect the device according to the connection diagram of the associated test or
measurement.
• Use the PVtest sockets only for connection to a PVmodule/ PVstring.
• Only use approved safety measuring lines [}page25].
• Disconnect any safety measuring lines not required for the respective test or measurement
from the device.
• Please consider sources of interference that might be present. Strong sources of
interference in the vicinity of the device might involve unstable readings and measuring
errors.
• Disconnect the device from the test object immediately after finishing the test or
measurement as well as during the cool-down phase.
DANGER
Maximum admissible voltage
Danger to life or serious injury is possible due to contact with high electric voltage.
• Use the device only in electric circuits up to overvoltage categoryCATIII with a conductor
for a maximum of 300V (4mm test sockets) or up to overvoltage categoryCATI with a
conductor for a maximum of 1000V to earth (PVtest sockets).