LEGRAND LE06499AE, Instructions For Installation, Use And Maintenance Manual

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23
Cast Resin Transformers
Installa
tion, use and main
tenanc
e manual
7. Reception, installation and initial energising of the transformer
Below are the checks to be carried out before putting the transformer into operation for the first time, in accordance with the
instructions in this installation manual.
TRANSFORMER SERIAL NUMBER:
Installation site:
Item Type of control
Manual
section
Check
completed
1 The information on the rating plate has been checked and meets the required specifications 3
2 The protective packaging has remained on the transformer until the day of commissioning 4.3
3 The protective packaging was intact and showed no signs of tampering 4.3
4
HV and LV cables are secured with suitable mechanical supports without compromising the
minimum insulation distances
5.1
5
In the case of connections to LV busbars, the connections consist of flexible elements without
mechanical stresses
5.2
6 HV and LV connections and voltage switches are correctly tightened 5.4
7
The minimum insulation distances between the transformer components and the surrounding
elements are respected
5.5
8 The conditions for proper transformer cooling are met 5.6
9 The fans and their control circuit are working correctly. 5.6
10 The temperature sensors are correctly connected to the control unit 5.8
11
The temperature controller is correctly connected to the control panel and the alarm sequence
has been verified.
5.8
12
The earth terminals of the metalwork are connected to the earth at the points identified for that
purpose
6.1
13 The voltage switches of all phases are regulated according to the mains voltage 6.2
14 The installation room is clean and not at risk of flooding 6.3
15 No foreign bodies, condensation or dirt on the transformer (grease, dust, etc.). 6.3
16
Insulation
measurement
MT/earth [MΩ] : BT/earth [MΩ] : 6.4