ABB ADVAC 38 Installation, Operation And Maintenance Manual Download

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A DVAC® 3 8 K V I N STA LL ATI ON , OPE R ATI ON A N D M A I NTE N A NCE M A N UA L

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Outline drawings

Circuit diagram of enclosure for 38 kV circuit breakers
Diagram figures description

Fig. 1

Spring-charging motor circuit (see note A)

Fig. 2

Shunt closing release (anti-pumping
is achieved mechanically)

Fig. 5

Instantaneous undervoltage release or
with pneumatic retarder (see note C)

Fig. 7

First shunt opening release circuit with
possibility of permanent supervision
of coil continuity (see note B)

Fig. 9

Second shunt opening release circuit with
possibility of permanent supervision
of coil continuity (see note B)

Fig. 30 Passing auxiliary make contact closing

momentarily when circuit breaker opens
(-MB01, -MB02, -MBU operation)

Fig. 31  Circuit breaker available auxiliary contacts
Fig. 43  Rear fan
Fig. 51  Circuit breaker available auxiliary contacts

on the truck (pin monitor)

Fig. 53 Jumper to convert into fixed mount

(fixed mount)

Fig. 54 Auxiliary position contacts 8 layers (TOC)
Fig. 55 Auxiliary position contacts 4 layers (TOC)

Notes

1) The circuit breaker is delivered complete with the accessories listed

in the order acknowledgment only. To create the order, please
reference the apparatus catalogue.

A) Check the power supply available on the auxiliary circuit to verify if

it is adeguate to start several closing spring-charging motors
simultaneously. To prevent excessive consumption, the closing springs
must be charged manually before energizing the auxiliary circuit.

B) The circuit for supervision of shunt opening release coil continuity shall

be used for this function only. It is possible to use the shunt opening
release test unit device to check coil continuity .

C) The undervoltage release is available in a version suitable for circuit

breaker supply-side feeding or for feeding from an independent
source. Circuit breaker may be closed only if undervoltage release
is energized (lock on closing is achieved mechanically). If the voltage
supply is the same for closing and undervoltage releases and if the
circuit breaker is required to automatically close when the auxiliary
voltage supply restores, it is necessary to delay energization of the
closing release by 50 ms after undervoltage release.

D) Figure 30 “EARLY B” is optional according to DIGIT 11 of the catalog

number. If figure 30 is requested, -BGBB ( 41-42) of figure 31 is not
available.

E) -BGTl, P3 (1-4) in figure 51 is obligatory and connects to figure 2 for the

close circuit.

F) -BGT1, P3 (2-3) in figure 51 changes according to DIGIT 11 of the catalog

number. If the "PIN MONITOR" -BGT1 is requested (default), the contact
-BGT1, P3 (2-3) in figure 51 is available and the contact -BGB1 (21-22)
in figure 31 is not available. If the "PIN MONITOR" -BGT1 is not
requested, the contact -BGT1, P3 (2-3) in figure 51 is not available
and the contact -BGB1 (21-22) in figure 31 is available. Move wire 13
from P3-3 to -BGB2 (22).

G) Figure 31: If figure 31 is requested with only one contact plug,

the contacts of plug -XDB2 P2 are not available.

H) The fan operates only when the circuit breaker is close D.