Start-up and operation 49
Start-up procedure for the AC cabinet
Refer to the electrical diagrams of the AC cabinet (3AES-SH-4600-14-SP01) that are
delivered with the unit.
Start-up procedure:
1. Make sure that all switches and breakers are in the OFF or open position (downstream
of the X0 terminal).
2. Make sure that the voltage indicator LEDs are off.
3. Measure that the voltage level at X0 (L1/L2/L3) is correct (~400 Vph-ph), and change
the position of the 89A0 (general breaker) switch to the ON position (in the auxiliary
transformer cubicle).
4. Measure that the voltage level at the 98A1 breaker (terminal switch) (1/3/5/7) is correct
(~400 Vph-ph / 230 Vph-n) and terminals 2/4/6/8 are free of voltage.
5. Close the FU2 and FU1 holders, keep the other downstream breakers in the open
position.
6. Set the position of the 98A1 switch to the ON position (AC distribution cubicle).
7. Make sure that the voltage indicator LEDs (VOLTAGE 400V-L1/L2/L3) are on, the bus
bars A1 were energized and the downstream breakers are available to close as
required.
8. Measure the voltage level of the upstream (98A1-1 to 98A1-11) breakers (~400 Vph-
ph and ~230 Vph-n).
9. For the normal operation of the megawatt station is necessary keep open the breakers
that are not used.
• Make sure that the cabinet fans operate normally, according to the thermostat
settings (Close 98A1-1).
• Make sure that the MWS light points (Close 98A1-7) and door limit switches
operate.
• Make sure that the fan operate normally with the manual command selector
(Close 98A1-2/3/4).
• Make sure that the TMD operates normally (refer to the TMD documentation),
close 98A1-9 (Control Equiment).
• Make sure that the switchgear operates normally (refer to the switchgear
documentation), close 98A1-9.
10. Keep the other breakers open until use.
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