Inspection Of Features And Ratings; Electrical Check - Siemens SIPROTEC 6MD61 Quick Reference Manual

6MD61

Inspection of Features and Ratings

Verify that the device has the expected features by checking the complete ordering number
with the ordering number codes given on page 69. Also check that the required and expected
accessories are included with the device. The ordering number of the device is on the
nameplate sticker attached to the top of the case or housing. The nameplate also indicates
the current, voltage, and power supply ratings of the device. A verification that these ratings
are the expected values is especially important. The jumpers for the control voltage of the
binary inputs are set at the factory for a DC control voltage equal to the DC voltage rating of
the power supply. The jumpers can be changed if a different control voltage is to be used.

Electrical Check

Operating conditions that meet VDE 0100 and VDE 0105 Part 1, or national and international
standards, are to be observed.
Warning!
The following inspection steps are done in the presence of dangerous
voltages. Only appropriately qualified personnel familiar with and adher-
ing to safety requirements and precautionary measures shall perform
these steps.
Ensuring safe grounding and applying power supply voltage are sufficient for a first electrical
inspection of the device.
Connect the ground on the back panel of the device to the ground of the location.
With the protective switches (e.g. test switches, fuses, or miniature circuit breakers) for
the power supply open, prepare the connections to the power supply. Verify that the
power supply voltage has the correct magnitude. Check polarity connections to the
device inputs. Follow the appropriate connection diagram from page 70.
Close the protective switches to apply the power supply.
C53000-B1174-C204-1
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