Extending the life of rotating machines

Repair Facility

PPI Engineering have opened a repair facility within close proximity to our head offices in Norwich.

With our vast range of contacts worldwide our aim is to help customers extend the life of rotating machines.

At PPI Engineering we design and supply generators, motors, switchgear and control equipment for a wide range of industries, including power generation, water, oil & gas, renewable energy, industrial production & food production. Our customers are global, with key clients based in Europe, the Middle East, Africa, Asia & South America.

The repair facility is PPI Engineering’s latest development in offerings to our customers. Here we will undertake repairs and major overhauls of rotating electrical machines, control equipment and switchgear to complement our other services.

The facility has a 20 tonne crane and can handle everything from a routine refurbishment with the replacement of bearings and a repaint, to a complete rewind. With our new repair facility, we can aid customers in extending the life of their machines without the excess cost of total replacement.

We can offer Electrical and mechanical repairs to HV Motors and Generators with ratings up to 100MW.

Capabilities include:

Stator and Rotor Rewinds of all manufacturer’s equipment
Rotor Endbell replacement and rotor rewind on 2 pole turbo-generators
Full machining and fabrication facility including: Shaft manufacture, stress relieving and replacement core Plates and core packaging
Coil, winding, core and rotor testing including: Full flux and el cid testing, tan delta and DLA, TVA probe detection and impulse testing load, vibration and noise testing (50Hz and 60Hz supplies)

Rotor Balancing up to 13.5 tons
Electrical and Mechanical
Design studies, fault diagnosis and upgrades of existing equipment – Obsolescence reviews and replacement
Supply of spare parts. In addition we have access to a high voltage, high current laboratory within our sister company, API Capacitors’, premises in Great Yarmouth, Norfolk

The facility has the following capabilities:

Pulse testing: 25kV max 200k A max
DC Testing: 200kV, 2A max
AC Testing: 100kV max 200A max
Partial Discharge: 100kV max to 100pC
Max Test Power: 100kW

This facility can also carry out environmental testing on sample parts including endurance, high and low ambient, high humidity and vacuum testing.