First Test Start; General; Precautions Before First Test Start; Starting - ABB AMA Manual

5.6 First test start

5.6.1 General

5.6.2 Precautions before first test start

5.6.3 Starting

5.6.3.1 Direction of rotation

3BFP 000 063 R0101 REV D
The first test start is a standard procedure after the installation and alignment procedure is
finished, the mechanical and electrical connections are made, the commissioning procedure is
gone through and the protective devices are active.
NOTE: If possible, the first start is made with uncoupled coupling between the driving and
driven machine. The load on the machine must in any case be as small as possible.
A visual inspection of the machine and its equipment is made before the first test start. It is
verified that all necessary tasks, checking and adjustments have been performed.
Before the test start, the following checks and measures must be made:
• If the coupling half is not assembled, the shaft extension key is either locked or removed
• The rotor is turned by hand, and it is verified that no abnormal noises are heard from the
bearings. To turn a rotor with sleeve bearings, a simple lever arm is needed
• The cabling, cables and bus bar connections are verified to be according to the connection
diagram
• The earth connections and earthing devices are verified
• The starting, control, protection, and alarm relays of each device are inspected
• The insulation resistance of the windings and other equipment verified
• The machine covers are assembled, and the shaft seals are tightly fitted in
• The machine and the environment are cleaned
The first start should last only about one (1) second, during which the direction of rotation of the
machine is verified. The direction of rotation of possible external blower motors must also be
verified. It is also verified that the rotating parts do not touch any stationary parts.
NOTE: If the machine does not have an axially locating bearing, and the machine is started
uncoupled, it is normal that the shaft will move axially before stabilizing.
The objective of the first starting is to check the direction of rotation of the machine. The
machine should turn in the same direction as is shown with an arrow located on the frame or the
fan cover. The direction of rotation of the external blower motor is indicated by an arrow near
the blower motor. The machine may only be operated in the specified direction of rotation. The
direction of rotation is indicated on the marking plate, see Appendix Typical position of plates.
Machines suitable for reversing operation are labelled with a double-headed arrow on the rating
plate, as well as on the frame.
Manual for High Voltage Process Performance Motors
Commissioning and Start-up - 39