5 Installation at Site
32 of 78
Etanorm-R
1222.8/13-EN
Table 9:
Time relay settings for star-delta starting:
Motor rating
Y time to be set
[kW]
[s]
≤ 30
< 3
> 30
< 5
5.8.2 Earthing
DANGER
Electrostatic charging
Explosion hazard!
Damage to the pump set!
▷
Connect the PE conductor to the earthing terminal provided.
▷
Provide for potential equalisation between the pump set and the foundation.
5.8.3 Connecting the motor
NOTE
In compliance with IEC 60034-8, three-phase motors are always wired for clockwise
rotation (looking at the motor shaft stub).
The pump's direction of rotation is indicated by an arrow on the pump.
1. Match the motor's direction of rotation to that of the pump.
2. Observe the manufacturer's product literature supplied with the motor.
5.9 Checking the direction of rotation
DANGER
Temperature increase resulting from contact between rotating and stationary
components
Explosion hazard!
Damage to the pump set!
▷
Never check the direction of rotation by starting up the unfilled pump set.
▷
Separate the pump from the motor to check the direction of rotation.
WARNING
Hands inside the pump casing
Risk of injuries, damage to the pump!
▷
Always disconnect the pump set from the power supply and secure it against
unintentional start-up before inserting your hands or other objects into the
pump.
CAUTION
Incorrect direction of rotation with non-reversible mechanical seal
Damage to the mechanical seal and leakage!
▷
Separate the pump from the motor to check the direction of rotation.
Summary of Contents for Etanorm-R
Page 1: ...Standardised Pump Etanorm R Installation Operating Manual...
Page 77: ......