GENERATOR PROTECTION THEORY & APPLICATION
GENERATOR PROTECTION THEORY & APPLICATION
160114
Presenter Contact Info
Wayne Hartmann
VP, Protection and Smart Grid Solutions Beckwith Electric Company
whartmann@ 904-238-3844
Wayne Hartmann is VP, Protection and Smart Grid Solutions for Beckwith Electric. He provides Customer and Industry linkage to
Beckwith Electric's solutions, as wnell as contributing expertise for
application engineering, training and product development.
Before joining Beckwith Electric, Wayne performed in application, sales and marketing management capacities with PowerSecure, General Electric, Siemens Power T&D and Alstom T&D. During the course of Wayne's participation in the industry, his focus has been on the application of protection and control systems for electrical generation, transmission, distribution, and distributed energy resources.
Wayne is very active in IEEE as a Senior Member serving as a Main Committee Member of the IEEE Power System Relaying Committee for 25 years. His IEEE tenure includes having chaired the Rotating Machinery Protection Subcommittee ('07-'10), contributing to numerous standards, guides, transactions, reports and tutorials, and teaching at the T&D Conference and various local PES and IAS chapters. He has authored and presented numerous technical papers and contributed to McGraw- 2 Hill's "Standard Handbook of Power Plant Engineering, 2nd Ed."
Generator Protection
Objectives
Review of generator construction and operation Review grounding and connections Discuss IEEE standards for generator protection Explore generator elements
? Internal faults (in the generator zone) ? Abnormal operating conditions
? Generator zone ? Out of zone (system)
? External faults
Discuss generator and power system interaction
3
Generator Protection
Objectives
Tripping considerations and sequential tripping
Discussion of tactics to improve security and dependability
Generator protection upgrade considerations
Advanced attributes for security, reliability and maintenance use
Review Setting, Commissioning and Event Investigation Tools
Q&A
4
Prime Mover (Mechanical Input)
G
Generator Protection
Generator Construction: Simple Bock Diagram
ia ib ic
Three-Phase Electrical Output
DC Field Source 5
Generator Protection
Islanded
Prime Mover (Mechanical Input)
G
(Prime Power) vs. Interconnected
Ia
Ib
LOADS
Ic
Prime Mover (Mechanical Input)
G
Ia
OTHER
Ib GENERATORS
Ic
& LOADS
DC Field Source
Islanded
Field
Regulates voltage
Prime Mover
Regulates frequency
DC Field Source
Interconnected
Field
Controls VARs/PF
Prime Mover
Controls real power 6
Generator Protection
Applying Mechanical Input
3
2
4
1
1. Reciprocating Engines
2. Hydroelectric
3. Gas Turbines (GTs, CGTs)
4. Steam Turbines (STs)
7
Generator Protection
Applying Field
DC Generator Commutator Exciter
? DC is induced in the rotor
? AC is induced in the stator
8
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