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Fuse Keep On Blowing

4/2/2014 7:36 PM	Rate (0)
Crespo Posts: 1 Rating: (0)	Hi Can you please help me here, i am using a 4Q simoreg 6RA70 2000A 690V drive and it keeps on blowing fuses, it application is on a rope shovel used for hoisting.
Crespo Posts: 1 Rating: (0)
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4/3/2014 6:11 PM	Rate (0)
kyani Posts: 5 Rating: (0)	checked the scr or working properly ???
kyani Posts: 5 Rating: (0)
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4/4/2014 6:20 AM	Rate (0)
PISCEAN 2010 Diamond Expert Joined: 4/23/2010 Last visit: 11/23/2024 Posts: 8092 Rating: (882)	Crespo Hi Can you please help me here, i am using a 4Q simoreg 6RA70 2000A 690V drive and it keeps on blowing fuses, it application is on a rope shovel used for hoisting. Which side fuse blows? Field or armatuer? When they blow? Have you checked thyristors? Motor field, armatuer?

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5/9/2014 4:30 PM	Rate (0)
N. Vijay Silver Member Joined: 3/17/2013 Last visit: 4/28/2025 Posts: 481 Rating: (43)	Hi Crespo, Can you check when the drive is getting ENABLE input ON before AC mains ON or after AC mains ON and reaching thyristor bridge. Regards, Vijay

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5/11/2014 9:50 PM	Rate (0)
metwally mustafa Silver Member Joined: 10/10/2010 Last visit: 7/5/2025 Posts: 309 Rating: (15)	check the power thyristor module and power board check the power cable

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