Circutor FRE Series Manual de usuario descargar pdf (Pagina 16)

FRE / FRES

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• In dirty environments (dust, sawdust, metal trimmings, etc.). Vacuum the dust and solid remains

regularly. There is no estimated time frame for cleaning, it depends on the amount of dirt that

penetrates the capacitor bank cabinet.

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

Reactor

Connection

Terminal (Nm)

RE-5-400

Terminal

1.83

RE-10-400

Terminal

1.83

RE-15-400

Terminal

1.83

RE-20-400

Terminal

6.2

RE-25-400

Terminal

6.2

RE-30-400

Terminal

15.2

RE-40-400

Terminal

15.2

RBE-50-400

Flat strip

RBE-60-400

Flat strip

RBE-80-400

Flat strip

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 resistors must be in good condition (they should not be open or show signs of

burns)

• Check the tightness of capacitor terminals, as shown in Table 7-3

Table 7-3 .- Tightening torques of the cables on the capacitor bank terminals

Capacitor

Power terminal

(Nm)

Earth terminal

(Nm)

CFB, CSB

6.2

Tubular

7.2.5 Key points for testing the PF regulator

• Check that the regulator does not show signs of deterioration and the display is lit as normal.

• Inspect the cables and terminals. They must be clean, not hardened or overheated.

• Check the connections and the insertion of removable terminal strips, if used:

- The terminal strips must be well fastened on removable regulators.

- Check that the terminals are tightened properly. The recommended torque is 0.6 Nm.

7.2.6 Cleaning the cabinet

• Remove possible metallic and other debris.

• Clean the inside of the cabinet

• Clean ventilation grills

7.3 Maintenance with the capacitor bank connected

• Check that the main switch turns on and off, without having to force the mechanism

• If there is an individual earth leakage protection for the capacitor bank, check its proper operation by

pressing the test button

• Check that the auxiliary control voltage is within the tolerance limits. If the capacitor bank has an

autotransformer, check that it is in good condition and does not show signs of deterioration

• Force the connection and disconnection of the different steps in manual mode. (refer to the regulator

manual before carrying out this operation) and perform the following tests:

1 2 ... 11 12 13 14 15 16 17 18 19 20

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Circutor FRE Series Manual de usuario Pagina 16

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