Introduction
1.1 Overall Operation
SIPROTEC, 7UM62, Manual
C53000-G1176-C149-7, Release date 03.2010
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1.1 Overall Operation
The digital multifunctional protective relay 7UM62 is equipped with a high performance microprocessor. All
tasks such as the acquisition of the measured values and issuing of commands to circuit breakers and other
switching equipment are processed digitally. Figure 1-1 shows the basic structure of the device.
Analog Inputs
The measuring inputs (MI) section effect a gavanic isolation. They convert currents and voltages from the
primary transformers to levels appropriate for the internal processing of the device.
Figure 1-1 Hardware structure of the numerical multi-functional device 7UM62 (Maximum configuration)
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