ABB CM Notice d'utilisation - Page 8

Parcourez en ligne ou téléchargez le pdf Notice d'utilisation pour {nom_de_la_catégorie} ABB CM. ABB CM 12 pages. Phase balance current relay

41-181.2K

right stationary contact between 6.5 and 7.1

amperes.

b) The moving contact should make with the

left stationary contact between 5.5 and 5.0

amperes.

4. Time Curve

NOTE: Contact travel is from balanced position

to either the right or left stationary con-

tacts.

a) Apply 10 amperes to rear electromagnet

(front

electromagnet

adjust permanent magnet for an operating

time to right contact of 1.0 ± 0.10 seconds.

8.2. INDICATING CONTACTOR SWITCH (ICS)

Close the main relay contacts and pass sufficient dc

current through the trip circuit to close the contacts of

the ICS. This value of current should not be greater

Figure 6. Relay Type CM Phase Balance Current With Taps And Acs Unit In Type FT-31 Case.

de-energized)

and

than the particular ICS tap setting being used. The

operation indicator target should drop freely.

8.3. AC INDICATING CONTACTOR SWITCH

(ACS)

Close the main relay contacts and pass sufficient ac

current through the trip circuit to close the contacts of

the ACS. This value of current should not be greater

than the particular ACS rated operating current being

used. The operation indicator target should drop

freely.

9.0 RENEWAL PARTS

Repair work can be done most satisfactorily at the

factory. However, interchangeable parts can be fur-

nished to the customers who are equipped for doing

repair work. When ordering parts, always give the

complete nameplate data.

876A588