- Basic Info
If the HV cascade is damaged or we need to replace it for some other reasons, please follow this information carefully!
- Instructions
- Take out the 230V fuse and wait 5 min if the generator was switched on before to let the capacitors discharge
- Switch off the 24V supply of the generator
- Remove the polarity switch knobs.
- Remove the plexi glass cover, one screw is behind the warranty seal of Heinzinger. It is okay to break the seal in this case, but we need to inform Heinzinger later on
- Mark the HV cable connections with a marker or a piece of tape. The connections are all pluged in, but we will get problems if they are not fully inserted. To avoid this, this marking will help you later to check if they are fully plugged in again.
- The HV cascade will be usually send back for repair, so handle it with care
- Write the date and your name on the HV cascade as well as the reason you take it out
- Disconnect all plugs, the signal plugs are screwed in! It is not easy to open some on them, but possible
- Open all screws fixing the HV cascade, take care of the weight and make sure the cascade is not dropping onto something in the generator
- Install the new cascade and reconnect all cables, make sure not to mix up the HV cables
- Make sure all HV cable plugs are fully inserted
- Make sure these cables are bended as shown in the Figure 8. Cable distance between the wires must be equally from the coil to the cascade
There were some cases of wrong labeling reported. Regardless of the labels X1 and X2 of the original cascade, never cross the cables! They must be as parallel as possible.
- When reinstalling the polarity switches, make sure they point to the correct direction. You can see the polarity at the small limit switches activated by the screw at the shaft.
- Contact EEP and PM project manager after you replaced the cascade and send it back to BMS. Please provide following information:
- Project name and number
- Who replaced the cascade
- Serial number of the generator
If you have any questions, problems happen or unclear, please inform:
EECIbn@brueckner.com
