OLTC go through mid position
OLTC go through mid position
(OP)
Hi every body,
firstly sorry if I do mistake I'm french and I don't speak a really well english.
So I'm in power station in United Kingdom, in the electrical commissioning team and we've got a problem.
We've got a OLTC (Technical parameter on the picture.
when we want to go from step 10 to step 8 the sequence is :
10 (Downer command) => 9C (not stop) => 9B (Downer command) => 9A (not stop) => 8
that the sequence we hope to
but when we want to go from step 8 to step 10 the sequence is :
8 (upper command) => 9A (Upper commande) => 9B (upper command) => 9C (Upper command) => 10
Can I and How can I do to configure the OLTC or the motor drive unit to go through the step 9A and the 9C without stopping? (same the first sequence)
thank you
firstly sorry if I do mistake I'm french and I don't speak a really well english.
So I'm in power station in United Kingdom, in the electrical commissioning team and we've got a problem.
We've got a OLTC (Technical parameter on the picture.
when we want to go from step 10 to step 8 the sequence is :
10 (Downer command) => 9C (not stop) => 9B (Downer command) => 9A (not stop) => 8
that the sequence we hope to
but when we want to go from step 8 to step 10 the sequence is :
8 (upper command) => 9A (Upper commande) => 9B (upper command) => 9C (Upper command) => 10
Can I and How can I do to configure the OLTC or the motor drive unit to go through the step 9A and the 9C without stopping? (same the first sequence)
thank you






RE: OLTC go through mid position
RE: OLTC go through mid position
but this contact is on the motor drive unit? or on the OLTC? or in an other part?
RE: OLTC go through mid position
Drive Unit. I had a similar problem an year back. It was just a case of a wire coming out lose in one of the contactors. Check the schematics in the Drive unit.
RE: OLTC go through mid position