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9 Commissioning
PCS-9785 Satellite-Synchronized Clock
9-1
Date: 2019-07-05
9.1 Overview
This device is numerical in their design, implementing all functions in software. The device
employs a high degree self-checking so in the unlikely event of a failure, it will give an alarm.
Blank commissioning test and setting records are provided at the end of this manual for
completion as required.
Before carrying out any work on the equipment, the user should be familiar with the contents of the
safety and technical data sections and the ratings on the equipment’s rating label.
9.2 Safety Instructions
WARNING!
ONLY
qualified personnel should work on or near this device. This personnel
MUST
be
familiar with all safety regulations and service procedures described in this manual.
During operating of electrical device, certain part of the device is under high voltage.
Severe personal injury and significant device damage could result from improper
behavior.
Particular attention must be drawn to the following:
The earthing screw of the device must be connected solidly to the protective earth conductor
before any other electrical connection is made.
Hazardous voltages can be present on all circuits and components connected to the supply
voltage or to the measuring and test quantities.
Hazardous voltages can be present in the device even after disconnection of the supply
voltage (storage capacitors).
The limit values stated in the
Chapter "Technical Data"
must not be exceeded at all, not even
during testing and commissioning.
When testing the device with secondary test equipment, make sure that no other
measurement quantities are connected. Take also into consideration that the trip circuits and
may be close commands to the circuit breakers and other primary switches are disconnected
from the device unless expressly stated.
9.3 Commission Tools
NOTICE!
Modern test set may contain many of the above features in one unit.
Minimum required equipment
Multimeter with suitable current range and voltage ranges.
Continuity tester (if not included in the multimeter).
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