CoDiS - All in one Monitoring Platform for Hydrogenerators

Solutions only

VIBRATION EXPERT SYSTEMS │ CONSULTING │ SYSTEM DESIGN

Oreškovićeva 8j, Zagreb │Croatia│www.veski.hr

Machine Condition Monitoring

for

Hydrogenerators

│ Solutions only Hydrogenerator Machine Condition Monitoring system

Facts about Predictive Maintenance

Maintenance costs reduced up to 50%

Unexpected failures reduced up to 55%

Plant production increase by 25%

INCREASED SAFETY / DECREASED MAINTENANCE COSTS

Repair time reduced up to 40%

MTBF increased by 30%

Machine longevity increased by 30% A survey of 500 plants by Keith Mobley, “Introduction to Predictive Maintenance”


Monitored values: CoDiS system is configured to detect faults

ONE PLATFORM – INTEGRATES

ALL MEASUREMENTS


Fault detection– Cross relation of faults and measurements on hydrogenerator

Faults analysis process: - Cross correlation of signal vector components in

different operating modes (e.g. Run up, steady state,

partial load etc.)

- Comparison to reference data in different operating

modes

- Change detection

- Fault analysis


CoDiS Machine Condition Monitoring system

Designed to monitor your

machines 24/7

One database

CoDiS integrates

Mechanical, Hydraulic and Electrical Quantities and Rotor Measurements


Modbus (TCP, RTU)

Profibus

TCP/IP

COMMUNICATION PROTOCOLS:

Analog output (0-10V/4-20mA)

Digital input/output

Relays

WIRE CONNECTION:

Functional Scheme / One Unit

MySQL

Data export to ASCII

DATABASE:


Functional Scheme / Power plant

Adjusted and Custom Tailored

Unit 2 Unit 1 Unit n


Functional Scheme / Cascade/Multiple plants

System installed @ various plants Centralized M&D center


CoDiS RT – Real Time Processing Unit

- Monitoring and Protection -


Mag. Field

Electrical

Air Gap Temperatures

End Winding and Core vib.

Trigger Relative Shaft vib.

Hydraulic

Process

DIFFERENT MEASUREMENTS

ALL IN ONE PLATFORM

CoDiS RT processing unit – Monitoring and Protection

1x – A&Ph

2x – A&Ph

3x – A&Ph

nx – A&Ph

Smax

Freq. band.

RPM

Phase ref Pressure pulsations

Cavitation

Active power

Reactive power

100Hz

200 Hz

300 Hz

Overall

Freq. band.

Absolute Bearing vib.

1x – A&Ph

2x – A&Ph

3x – A&Ph

Runner blade x

Guide vane x

Sub harmonics

Freq. band.

Min, Max

Eccentricity

Rotor Dynamics

Stator/Rotor

shape

Power Quality

Transients

Load Angle

Rotor shorted

turns detection

Cross relation to

Air Gap data

Turbine cover vib.

1x – A&Ph

2x – A&Ph

3x – A&Ph

nx – A&Ph

RMS

Freq. band.


Custom tailored GUI

@ user request

Custom tailored analysis

and applications easily

integrated into CoDiS

Built in, easy to set,

Modbus communication

protocol

General purpose analog

inputs with software defined

analysis per channel



CoDiS RT controller recognizes when the monitored

machine operates in stationary or transient mode

and automatically sets the analysis accordingly

RECOGNIZED MACHINE OPERATING MODES: - Stop

- Run UP

- Normal operation

- Coast down

- Any user defined mode



Protective permanent monitoring tasks:

- Measurement and real time analysis

- Comparison of calculated quantities with operating modes

- Raising alarms if necessary

Protective permanent monitoring characteristics:

- Server independent operation

- Setup of different operating modes

- Possibility of setting alarm/trip levels @ operating modes

- Possibility of setting alarm/trip activation time delays

- Relay outputs compatible with plant’s equipment

Communication:

- analog or digital communication with control system, local

data display (HMI)



CoDiS DM – Diagnostic Monitoring System

- Diagnostics and Analysis-


CoDiS DM - Diagnostic software

ONE DATABASE SERVER FOR ALL

MEASUREMENTS


Rotor dynamics (relative shaft and bearing vibrations)

Stator and end windings vibrations

Air gap and flux

Turbine cover vibrations (turbine cover, draft tube)

Process quantities (active and reactive power, temp.)

Electric quantities (currents and voltages, partial discharge)

Hydraulic quantities (pressure, head, rough zone detection, efficiency)

SUPPORTED DIGANOSTICS



SUPPORTED DATA ANALYSIS TOOLS



ALL SIGNALS ARE ADEQUATELY PROCCESED IN REAL TIME

AND STORED TO CoDiS SYSTEM HISTORIAN DATABASE

AS AN ARRAY OF VECTORS CALLED

CONDITON VECTOR Condition vector is set of values that are essential for proper

machine condition identification

s1n – First harmonic s2n – Second harmonic s3n – Third harmonic

Real signal

Rest

+ + +

= CONDITON VECTOR

Any type of signal measured/calculated is available in trends!



In Transient vectors are

stored with maximum

resolution; 0.5s,1s/2s...

In steady state veectors are stored

once per 1min/5min/10min...

















Thank you for your attention!

Oreškovićeva 8j, Zagreb │Croatia│www.veski.hr │ [email protected]

Read our case studies:

http://sine.ni.com/cs/app/doc/p/id/cs-10016


Details on training courses:

http://veski.hr/downloads/akademija_dl







http://veski.hr/downloads/akademija_dl

Technology

CoDiS - All in one Monitoring Platform for Hydrogenerators