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| RH-ARIEL |
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Message ID: 41
Entry time: Tuesday, August 13, 2019, 11:43
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| Author: |
Jason Kapalka |
| Category: |
T-Hall Crane |
| Type: |
Development |
| Subject: |
Installed surge protector |
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Background: On 2019-06-25 a Pri VelFdbk Loss fault was discovered on the Main Hoist East Drum South Motor of the ARIEL Target Hall Crane. The crane was used previously on 2018-08-22 without incident. The main hoist of the crane was unavailable until the Hugo Lapointe (Automation Technician) from the crane manufacturer (REEL-COH) replaced the Allen-Bradley 20-750-ENC-1 Incremental Encoder board in the 800VFD with a new one, and replaced the Motrona cross switcher and splitter with a terminal block on 2018-08-22. The cause of the damage to the board and splitter could not be determined. Hugo Lapointe recommended that a DEHNguard DG MU 3PD 480 3W+G R (908355) pluggable surge arrester be installed in order to protect the system from voltage surges, which may of been the cause of the fault on 2019-06-25. Datasheet for surge arrester is attached. Sylvain Raymond said that the device should be installed downstream of the motor disconnect switch and fuse in the electrical enclosure.
Date: 2019-08-09
Participants:
- Jason Kapalka (mechanical engineer)
- Marshal Faragher (electrician)
Operation:
- Locked and tagged out 480 V Target Hall Crane breaker on panel P-703 in ARIEL Penthouse
- Verified that ARIEL Target Hall Crane has powered down
- Locked and tagged out 480 V Target Hall disconnect switch
- Locked and tagged out 480 V motor disconnect switch on PR electrical enclosure in ARIEL Crane Control Room
- Opened PR electrical enclosure in ARIEL Crane Control Room
- Verified that 480 V power supply wires were de-energized
- Installed DEHNguard DG MU 3PD 480 3W+G R (908355) pluggable surge arrester according to crane manufacturers (REEL-COH) recommendations
- Closed PR electrical enclosure in ARIEL Crane Control Room
- Removed lock and tag from 480 V motor disconnect switch in ARIEL Crane Control Room
- Removed lock and tag from 480 V Target Hall disconnect switch
- Removed lock and tag from 480 V Target Hall Crane breaker on P-703 breaker panel in ARIEL Penthouse and closed the breaker
- Closed the motor disconnect switch on PR electrical enclosure and waited 1-2 minutes until the ARIEL Target Hall Crane had completely powered up
- Function tested ARIEL Target Hall Crane: all movements functioned as expected |
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