9
Medium-voltage Transformer!
PCS outputs cannot be connected in parallel directly. Please adopt either of the fol-
lowing methods:
• One PCS connects to the medium-voltage grid through a single two-winding
transformer ;
• Two PCSs connect to the medium-voltage grid through double split-type
transformer.
• No neutral point is required on the low voltage side of the step-up transformer.
• If a neutral line is present, installers must always keep in mind not to connect or
ground it.
Follow strictly the internal connection marks to connect cables.
2.9 Live Line Measurement
High voltages are present inside the device. Death resulting from burns and
electric shock upon touching the live components of the PCS. During live line
measurement,
• Use suitable protective equipment, for example dielectric gloves, and
accompany by other persons.
2.10 Measuring Instrument
Instrument for measurement of the electrical parameters should meet the requirements
listed below:
• Instrument for measurement of the electrical parameters should be high quality
instrument with sufficient measuring range.
• Make sure the connection and use of the instrument are correct to avoid arc
and other dangers.
• Use suitable protective equipment, for example dielectric gloves if live line
measurement is required.
User Manual 2 Safety Instructions
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