An additional generator can be included in the system design in order to “hot swap” generators when maintenance is required or if there is an unscheduled failure

In a cycle maintenance schedule, the additional generator will be scheduled to run while one generator is taken off line and maintained, ready to be put back into service as the maintenance cycle continues. The maintenance redundancy will ensure uninterrupted and continual total output of the system to always be 30 MW.

Heavy Fuel Oil Generators

Retrofit kits are available to convert the generator to run with either diesel or natural gas

45 mW Power Plant

Example Project

Number of generators = 45,000/3,000 = 15 Generators

3000 kVa Generator
Synchronization
Box
3000 kVa Generator
3000 kVa Generator
3000 kVa Generator
15 Parallel Connected Generators
3000 kVa Generator
3000 kVa Generator

Connected Generators for Maintenance

The diagram reflects 15 Parallel connected generators at 3MW each. It is also feasible for a combination of different size generators to be installed.

In order to meet the agreed upon deadlines for commissioning, the final configuration is based on availability of the components at the time of contract signing.

Redundancy is normally built into the architecture to provide uninterrupted power output levels for cyclical maintenance and when there is unscheduled downtime.

Power characteristics of Generator

Stand by KVA
4,000
Stand By KW
3,000
Prime KVA
4,400
Prime KW
3,500
Voltage Regulation
400/231
Power Factor
0.8

In a continuous power generation system, the total available power is done according to 75-80 % of maximum of output of the generators.

Generator Specifications

Redundancy built into the architecture helps to provide cyclical maintenance and cope with emergency situations

The output power graphics of the system

Example of Operating Parameters and Fuel Consumption

Units of Measure
Units
Rated Power
kW
4000
Rated Speed
rpm
750
Overload power
kW
4400
Overload Speed
rpm
774
Maximum working speed
rpm
450
Fuel Consumption at 100% Load
g/kW.h
193
Fuel Consumption at 85% Load
g/kW.h
197
Fuel Consumption at 75% Load
g/kW.h
190
Fuel Consumption at 50% Load
g/kW.h
187
Certifications
ISO 3046-1

total Fuel consumption for a Hypothetical 30 MW system

Load
G/KW - Hour
100% Load
1,930
75% Load
1,897
50% Load
1,871

Maintenance Scheduling

In normal mode operation, the maintenance cycle of a generator is every 250 hours. There are some modifications which could result in the ability to increase this time up to to 500 hours including options to perform some maintenance functions while the generator is running.

250
hours
Maintenance
Cycle
500
hours
Increased
Maintenance Cycle

How to make the maintenance while running the system?

Supported Fuel (in-field retrofit)

Generators are designed to run on different fuel types from Natural Gas to Heavy Fuel Oil. Most generators have Retrofit kits available to convert the generator to run with all fuel types.

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Text Alignments

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Text Color

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Structure Classes

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