Replacing DOL drive with Novomet VFD

[Arkad]

There was a DOL ("clapper") VSD on the well. The field wanted a VFD. We installed a Novomet VFD, and the problems started. At 48 Hz load is 98%; on the DOL at 50 Hz it was 65%. Setpoints look right. Anyone know why?

Original topic

Подскажите, стояла су хлопушка...промысел захотел частотник. Установили СУ Новомет, и начались проблемы.С 48 Гц загрузка 98% хотя раньше на хлопушке с 50 Гц было 65%. Уставки все верные..кто что знает?

[ALEngineer]

Have you recalculated the tap for the acceleration curve? Calculation of soldering was discussed here: Sizing VSD for ESP motor power
and here: SUT tap voltage vs VSD supply
The post has been moved and a new topic has been created.

Original reply

А отпайку пересчитали под кривую разгона? Расчет опайки обсуждалось тут: Sizing VSD for ESP motor power
и тут: TMPN tap voltage vs VSD supply
Пост перемещен, создана новая тема.

[оын]

Perhaps it's a matter of UEF characteristics?

Original reply

возможно дело в уэф характеристиках?