References

Since the foundation of EZT, we have supported the following companies, among others:

Projects

We have carried out the following projects, among others:

Category	Project title	Work packages
Generator	Phase-to-ground fault in the generator discharge cabinet of a CHP plant	Root Cause Analysis
Miscellaneous	Inspection of a milling machine	On-site damage assessment, preparation of an inspection report
Transformer	Electrical flashover on a dry-type transformer	Root cause analysis, recommendations for further operation
Steam turbine	Structural modification of a steam turbine housing in a sewage sludge incineration plant	Consulting service
Gas engine	Damage to a gas engine in a composting plant	On-site damage assessment, inspection of damaged components at the manufacturer's repair shop, root cause analysis
Generator	Continued operation of turbo generator after water damage	Recommendations for further operation
Steam turbine	Cracks on the injection coolers in a combined heat and power plant	Laboratory analyses, root cause analysis
Gas turbine	Inspection of a rubbing damage in a heavy-duty gas turbine	On-site damage assessment, assessment of reparability, preparation of an inspection report
Gas engine	Fracture of a connecting rod in a large gas engine	Laboratory analyses, root cause analysis
Steam turbine	Increased vibrations in a steam turbine train after an overhaul in a cogeneration plant	Operational data analysis, evaluation of vibration analyses, consulting services
Pump	Damage to a pump in a gravel plant	On-site damage assessment, laboratory analyses, root cause analysis
Gas turbine	Risk assessment of a life time extension of gas turbine rotors	File study, risk assessment, reporting and presentation
Boiler	Leakage at a pipe of the membrane wall in a boiler of a cogeneration plant	Laboratory analyses, root cause analysis
Paper machine	Damage to a belt pulley in a paper machine	Laboratory analyses, root cause analysis
Power Plant	Broken spring in a safety valve in a cogeneration plant	Laboratory analyses, root cause analysis
Pump	Defective pump in a geothermal cogeneration plant	Laboratory analyses, root cause analysis
Paper machine	Damage to a worm shaft in a paper machine	Laboratory analyses, root cause analysis
Gas turbine	Compressor damage in a heavy duty gas turbine	Support in claims settlement
Gas turbine	Use of an alternative fuel in an industrial gas turbine	File study, risk assessment, consultancy service
Pump	Damage to a liquid ring pump	Laboratory analyses, root cause analysis
General engineering	Shaft breakage on an agitator	Laboratory analyses, root cause analysis
Transformer	Fire in transformer compact station for cold storage forwarding agency	On-site damage assessment, recommendations for repair and further operation, root cause analysis
Paper machine	Damage to a gas turbine in a paper factory	On-site damage assessment, preparation of inspection report
Steam turbine	Inspection of a steam turbine train in a biomass power plant	Consulting service for claims settlement
Transformer	Arc fault in transformer of PV plant	On-site damage assessment, root cause analysis, calculation of loss of profit
Steam turbine	New steam turbine rotors in a solar thermal power plant	Technical support
Miscellaneous	Damage survey in a high-rack storage	On-site damage assessment, preparation of an inspection report, support in finding of short-term remedial measures
Gas turbine	Turbine damage in a heavy-duty gas turbine	Laboratory analyses, root cause analysis
Paper machine	Corrosion damage to washing nozzles in a paper machine	Laboratory analyses, root cause analysis
General engineering	Damage to a pipeline	On-site damage assessment, laboratory analyses, root cause analysis
Diesel engine	Wear on valve heads in diesel engines	Laboratory analyses, root cause analysis
Boiler	Leakage on a superheater tube	Laboratory analyses, root cause analysis
Generator	Evaluation of findings and modal analyses of a stator winding head	Root cause analysis and recommendations for continued operation
Medium Voltage	Failure of SF6 switchgear of a PV system	On-site damage assessment, root cause analysis, calculation of loss of earnings
Wind power	Investigating the cause of a wind turbine fire	On-site damage assessment, root cause analyses, recommendations for continued operation
Steam turbine	Vibration problems on a steam turbine set after an overhaul	Consulting services
Generator	Endoscopic and metrological examination of a stator and rotor winding with a high cyclic load	On-site damage assessment, preparation of an inspection report, support in finding short-term remedial measures
Boiler	Leakage on a superheater tube	Laboratory analyses, root cause analysis
Miscellaneous	Water damage in a central heating system	On-site damage assessment, analyses of the cause of damage, creation of a restoration concept.
Steam turbine	Examination of the revision documents	Study of files, support for claims settlement
Medium Voltage	Fire on low-voltage distribution in a transformer compact station for a biogas plant	Technical support with procurement, consulting services for claims settlement
General engineering	Wear on conveyor chains in a wood processing plant	Laboratory analyses, root cause analysis
Generator	Renovation of rotor winding with frequent insulation faults	On-site damage assessment, analyses of the cause of damage, creation of a restoration concept.
Pump	Damage during commissioning of a water pump	Study of files, root cause analysis
Gas turbine	Turbine damage in a heavy-duty gas turbine	Study of files, consulting services
Generator	Continued operation of a turbo generator with a defective exciter machine	Consulting services, support in finding short-term remedial measures
Steam turbine	Damage to an oil deflector in the steam turbine of a combined-cycle power plant	On-site damage assessment, root cause analysis
Photovoltaics	Failure of several power modules / inverters at low load	Consulting services, support in finding remedial measures
Gas turbine	Combustion chamber damage in a heavy-duty gas turbine	On-site damage assessment, root cause analysis
Gas engine	Gas engine failure in a combined heat and power plant	On-site damage assessment, root cause analysis
Gas turbine	Combustion chamber damage in a heavy-duty gas turbine	On-site damage assessment, analyses of operating data, root cause analysis
Medium Voltage	Assessment of multiple damages and calculation of yield losses	Consulting services for claims settlement
Boiler	Boiler damage in a biomass power plant	On-site damage assessment, root cause analysis
Steam turbine	Finding the cause of defective bearing temperature measurements	Root cause analysis, support during dismantling, recommendation for continued operation, mediation
General engineering	Technical support with the settlement of a BI claim	Consulting services
Gas turbine	Field tests for hydrogen admixture in a heavy-duty gas turbine	Expert support, consulting services
Generator	Defective winding on exciter machine due to assembly error during replacement	Consulting services for claims settlement
Pump	Damage to a pump in a geothermal power plant	On-site damage assessment, consulting services
Diesel engine	Fire damage to a diesel engine	On-site damage assessment, laboratory analyses, root cause analysis
Boiler	Crack indications in a sulphur vapor pipe	Laboratory analyses, root cause analysis
Gas turbine	Damage to a gas turbine impeller	Laboratory analyses, root cause analysis
Steam turbine	Damage to a coupling in a combined cycle power plant	On-site damage assessment, root cause analysis
Boiler	Leaks on a waste heat exchanger in a biogas plant	On-site damage assessment, laboratory analyses, root cause analysis
Compressor	3D scan of a compressor impeller	On-site damage assessment, consulting services
Steam turbine	Vibration analyses on a steam turbo set and current erosion in the gearbox	Vibration measurement, consulting services
Steam turbine	Detached blades of a low-pressure turbine	Accompanying the dismantling and recording the findings on site, recommendations for further action
Paper machine	Damage to a coupling in a paper mill	Laboratory analyses, root cause analysis
Steam turbine	Rubbing damage in a steam turbine in a combined cycle power plant	Study of files, operating data analyses, root cause analysis
Pump	Cable damage to a pump in a geothermal plant	On-site damage assessment, root cause analysis
Boiler	Planning the overhaul of a boiler	Consulting services
Medium Voltage	Fatal accident at work during transformer station maintenance at a wind farm	Root cause analysis and recommendations for continued operation
Steam turbine	Blade damage on an ORC turbine	On-site damage assessment, consulting services
Gas turbine	ZFP analyses in the exhaust tract of a gas turbine	Laboratory analyses, consulting services
Boiler	Analyses of slag samples from a waste incineration plant	Laboratory analyses, root cause analysis
Gas turbine	Compressor damage in a heavy-duty gas turbine	Study of files, root cause analysis
Gas turbine	Rubbing damage to a compressor impeller	Laboratory analyses, consulting services
Gas turbine	NDT analyses on gas turbine disks	Laboratory analyses, consulting services
Steam turbine	Damage to a steam turbine in a solar thermal power plant	Study of files, root cause analysis
Gas engine	Repair of low voltage circuit breakers	On-site damage assessment, preparation of an inspection report, support in finding short-term remedial measures
Gas engine	Damage to a biogas plant	On-site damage assessment, root cause analysis
Photovoltaics	Determining the cause of a fire on a central inverter	Laboratory analyses, root cause analysis, recommendations for continued operation
Cable	Cable fault on an extra-high voltage cable	On-site damage assessment, root cause analysis, support with claims settlement
Steam turbine	Rubbing damage to a steam turbine in a solar thermal power plant	Study of files, root cause analysis
Pump	Damaged expansion joints on district heating pumps	Study of files, root cause analysis
Transformer	Oil leakage from a transformer in a compact station	Consulting services, support in finding short-term remedial measures
Gas turbine	NDT analyses of a turbine wheel disk of a gas turbine	Laboratory analyses, consulting services
Gas turbine	Combustion chamber damage in a heavy-duty gas turbine	On-site damage assessment, root cause analysis
Gas engine	Gas engine failure in a combined heat and power plant	On-site damage assessment, root cause analysis
Gas turbine	Compressor damage in a heavy-duty gas turbine	On-site damage assessment, laboratory analyses, root cause analysis
Medium Voltage	Arc on SF6 switchgear	Consulting services, support in finding remedial measures
Heat exchanger	Frost damage to a heat exchanger for a gas engine	On-site damage assessment, laboratory analyses, root cause analysis
Paper machine	Damage to a carrier drum in a paper mill	On-site damage assessment, laboratory analyses, root cause analysis
Steam turbine	Damage to steam turbine	Study of files, root cause analysis

References

Allianz Global Corporate & Specialty SEAllianz Versicherungs AGAllianz ESA GmbH

AXA XL

Vattenfall

Ergo Direkt AG

Mineralöl Raffinerie Oberrhein GmbH

Papierfabrik Palm AG

Abaco Global Loss Adjusters

Stadtwerke Neumünster

Flexsys

Saale Energie GmbH

Fernwärme Ulm

Aurelia

Südzucker

Yara

Zweckverband Abfallwirtschaft Raum Würzburg

Projects