Module replacement – GE Industrial Solutions EntelliGuard E Network Interlock for 800–2000 Ampere User Manual

Page 5

Advertising
background image

WARNING: Before installing any

accessories, turn the breaker

OFF

,

disconnect it from all voltage sources,

and discharge the closing springs.

AVERTISSEMENT: Tourner le

disjoncteur à la position

OFF

, le

débrancher de toute source de tension et

décharger les ressorts de fermeture avant

l’installation de tout accessoire.

Module Replacement

Removing the Network Interlock Module

Use the following procedure, illustrated in Figure 7, to
remove the Network Interlock module.


1. Disconnect the six wires from the Network Interlock

module. Label each wire as it is removed. Cut wire ties as

necessary.

2. Remove the manual reset assembly by removing the two

hex-head screws as shown in Figure 7.

3. Remove the accessory mounting plate as shown in

Figure 5.

4. Remove the Network Interlock module from the

mounting plate by removing the three sets of nuts and

washers, as shown in Figure 3.

Installing the Network Interlock Module

Use the following procedure to install the Network
Interlock module as a replacement, as illustrated in
Figure 5.

1. Open the circuit breaker and remove it from the cubicle

or substructure. Check to ensure the breaker closing

springs are DISCHARGED. (See DEH201 or DEH203 for

detailed instructions.)

2. Carefully place the circuit breaker on a suitable working

surface, resting on the primary disconnects, so that the

bottom of the circuit breaker is accessible.

3. Fasten the Network Interlock module to the accessory

mounting plate using three sets of # 8-32 nuts, spring

washers, and flat washers as shown in Figure 3

4. Fasten the Shunt Trip accessory to the mounting plate

beside the Network Interlock. See DEH203 or DEH168

for detailed instructions.

5. Assemble the accessory mounting plate to the circuit

breaker frame using four sets of # 10-32 screws, spring

washers, and flat washers as shown in Figure 5.

6. Ensure the Network Interlock is in the RESET state

(shown in Figure 6) by manually rotating the reset lever

counterclockwise. If the Network Interlock was SET, this

operation will cause the set lever to retract

(counterclockwise) away from the trip paddle.

7. With the breaker open, charge the breaker closing

springs. Do not close the breaker. Adjust the gap

between the Network Interlock set lever and trip paddle

by rotating the socket-head adjusting screw as shown in

Figure 6. The distance between the set lever and the

trip paddle must be between 0.06 and 0.09 inch.

8. Connect the six wires to their corresponding

terminals on the Network Interlock device.

9. Reset the Network Interlock by pushing the manual

reset button. The Network Interlock status circuit

should be open. Close the breaker manually or

electrically. The breaker should close properly.

10. Set the Network Interlock by applying 120 VAC

across terminals 15 and 21 on the secondary

disconnect. The breaker should trip open and the

status circuit should change from open to close.

11. Charge the breaker manually or electrically. Close

the breaker. The breaker should trip open,

discharging the closing springs.

12. Reset the Network Interlock by applying 120 VAC

across terminals 20 and 21 on the secondary

disconnect. The status circuit should change from

closed to open.

13. Charge and close the breaker. The breaker should

close properly.

14. Set the Network Interlock, and repeat Steps 9

through 13.

Advertising