5 Installation at Site
32 of 70
Etachrom L
1212.8/19-EN
5.7 Electrical connection
DANGER
Electrical connection work by unqualified personnel
Risk of fatal injury due to electric shock!
▷
Always have the electrical connections installed by a trained and qualified
electrician.
▷
Observe regulations IEC 60364 and, for explosion-proof models, EN 60079.
WARNING
Incorrect connection to the mains
Damage to the power supply network, short circuit!
▷
Observe the technical specifications of the local energy supply companies.
1. Check the available mains voltage against the data on the motor name plate.
2. Select an appropriate starting method.
NOTE
Installing a motor protection device is recommended.
5.7.1 Setting the time relay
CAUTION
Switchover between star and delta on three-phase motors with star-delta starting
takes too long.
Damage to the pump (set)!
▷
Keep switch-over intervals between star and delta as short as possible.
Table 10:
Time relay settings for star-delta starting:
Motor rating
Y time to be set
[kW]
[s]
≤ 30
< 3
> 30
< 5
5.7.2 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.
Summary of Contents for Etachrom L
Page 1: ...Standardised Pump Etachrom L Installation Operating Manual...
Page 68: ......
Page 69: ......
