Nidec LSA 52.3 - Generator Start-Up Checklist

Electric Power Generation
Installation and maintenance
5382 en - 2022.11 / h
LSA 52.3 / LSA 53.2 / LSA 54.2
Industrial Range Alternators
__________________________________________________________________________________________________
17
4.3.3 Generator start-up checklist
TYPE SERIAL No.
Voltage V Frequency Hz Speed rpm
Output Power kVA Power Factor
STATIC CHECKS
Mechanical checks
• Direction of Rotation (refer to Section1) Clockwise or Anti-clockwise
• Mechanical fastening of the generator (see Chapter 4.2) ____________________________________________
• Coupling - Alignment with the motor
(refer to chapter 3.3) _______________________________________
• Cooling: Coolant flow rate (see section 1; Chapters 4.2.0.2 & 4.2.3) _____________________________________
• Open air inlet and outlet _____________________________________________________________
• Bearing lubrication: Lubrication of plain bearings (flow rate; level; oil)
(Section 1 & Chapter 4.2.2) ___________
Or Roller bearings lubrication
(refer to Section1 & chapter 4.2.1)
Temperature sensors (correct readings)
(Section 1& Chapters 2.5.1 & 2.6.2) ____________
• Heating by additional resistance heaters (see section 1) ____________________________________________
Type of AVR : 1F 3F
Electrical connections between alternator, AVR and main panel: (refer to Section 4 & drawing Section 5)
• Output power cable connections in phase order (see Chapter 3.4.1) _
• Terminal box connections ________________________________________
• AVR detection voltage ________________________________________
• Supply power and excitation terminals ________________________________________
• Network detection (3F only) ________________________________________
• Command signals (equalisation and synchronisation for 3F) ________________________________
• Excitation polarity and booster ________________________________________
• Protective devices: (Bearing oil level fault detectors; Temperature sensors, etc) ______________________
• External accessories (e.g. remote potentiometer) ________________________________________
ALL CURRENT TRANSFORMERS MUST BE CONNECTED.
Windings insulation
Winding temp.:…….°C
Voltage
1 minute
(MΩ)
10 minutes
(MΩ)
Polarisation
index
Static parts
3 Phases / Ground
"U" /Ground
"V" /Ground
"W" /Ground
"U" / "V"
"U" / "W"
"V"/"W"
Exciter field / Ground
If the 3 phases/earth IR measurement is compliant then the rest of the measurements are not required for a Commissioning
Rotating
parts
Rotor / Ground
≤ 500 V
Exciter armature / Ground
≤ 500 V
Rotating resistances
≤ 500 V
Rotating diodes
≤ 500 V
All works must be carried out by a qualified and authorised person.