Commissioning
!
WARNING
Warning of dangerous voltages when operating an electrical device
Non-observance of the following measures can result in death, personal injury or substantial prop-
erty damage.
²
Only qualified people shall work on and around this device. They must be thoroughly familiar with all
warnings and safety notices in this instruction manual as well as with the applicable safety steps,
safety regulations, and precautionary measures.
²
Before making any connections, the device must be earthed at the protective conductor terminal.
²
Hazardous voltages can exist in the power supply and at the connections to current transformers,
voltage transformers, and test circuits.
²
Hazardous voltages can be present in the device even after the power supply voltage has been
removed (capacitors can still be charged).
²
After removing voltage from the power supply, wait a minimum of 10 seconds before re-energizing
the power supply. This wait allows the initial conditions to be firmly established before the device is
re-energized.
²
The limit values given in Technical Data must not be exceeded, neither during testing nor during
commissioning.
For tests with a secondary test equipment ensure that no other measurement voltages are connected and the
trip and close commands to the circuit breakers are blocked, unless otherwise specified.
!
DANGER
Hazardous voltages during interruptions in secondary circuits of current transformers
Non-observance of the following measure will result in death, severe personal injury or substantial
property damage.
²
Short-circuit the current transformer secondary circuits before current connections to the device are
opened.
During the commissioning procedure, switching operations must be carried out. The tests described require
that they can be done without danger. They are accordingly not meant for operational checks.
!
WARNING
Warning of dangers evolving from improper primary tests
Non-observance of the following measure can result in death, personal injury or substantial property
damage.
²
Primary tests may only be carried out by qualified persons who are familiar with commissioning
protection systems, with managing power systems and the relevant safety rules and guidelines
(switching, earthing etc.).
3.3
Mounting and Commissioning
3.3 Commissioning
354
SIPROTEC 4, 7UT6x, Manual
C53000-G1176-C230-5, Edition 09.2016
Summary of Contents for SIPROTEC 4 7UT6 Series
Page 394: ...394 SIPROTEC 4 7UT6x Manual C53000 G1176 C230 5 Edition 09 2016 ...
Page 482: ...482 SIPROTEC 4 7UT6x Manual C53000 G1176 C230 5 Edition 09 2016 ...
Page 504: ...504 SIPROTEC 4 7UT6x Manual C53000 G1176 C230 5 Edition 09 2016 ...
Page 522: ...522 SIPROTEC 4 7UT6x Manual C53000 G1176 C230 5 Edition 09 2016 ...
Page 528: ...528 SIPROTEC 4 7UT6x Manual C53000 G1176 C230 5 Edition 09 2016 ...
Page 538: ...538 SIPROTEC 4 7UT6x Manual C53000 G1176 C230 5 Edition 09 2016 ...
Page 664: ...664 SIPROTEC 4 7UT6x Manual C53000 G1176 C230 5 Edition 09 2016 ...
Page 666: ...666 SIPROTEC 4 7UT6x Manual C53000 G1176 C230 5 Edition 09 2016 ...
Page 684: ...684 SIPROTEC 4 7UT6x Manual C53000 G1176 C230 5 Edition 09 2016 ...