Circutor OPTIM Series Manuel d'utilisateur télécharger pdf (Page 16)

OPTIM SERIES

Table 7-2.- Tightening torques of the cables to contactor terminals

MODEL

Auxiliary (Nm)

POWER (Nm)

MC-12

1.3

1.6

MC-18

1.3

2.2

MC-32

1.3

2.9

MC-40

1.3

2.9

MC-50

1.3

4.5

MC-65

1.3

4.5

MC-75

1.3

4.5

MC-85

1.3

4.5

MC-150

1.3

7.2.3 Key points for inspecting contactors.

• Check that the plastic parts are not blackened and do not show signs of burning or hardening.

• Check that the head is properly inserted

• Check the tightness of cables and terminals, as shown on table 7-2

• The terminals must be clean.

• In the case that the bank includes RD discharge resistors, check they are in good condition

(they are not open or show signs of burning).

Fig. 7-1.-

Connection of the discharge resistors

• Cleaning the contactors: In dirty environments (dust, sawdust, rust particles, etc.) vacuum the

contactor periodically. There is no estimated time frame for cleaning, it depends on the amount

of dirt that is inside the bank.

7.2.4 Key points for inspecting capacitors.

• Inspect the cables and terminals. They should not be overheated or blackened.

• The terminals must be clean.

• The slow discharge resistor must be in good condition (they should not be open or show signs

of burns)

• Check the tightness of capacitor terminals, as shown on table 7-3

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Circutor OPTIM Series Manuel d'utilisateur Page 16

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