Project Description: Project scope is testing and commissioning of a new 115kV switchyard including all bus, high voltage breakers, current transformers, coupling capacitor voltage transformers, ground grid, and protective relaying systems for the equipment, bus and transmission line protection. Functional checkout of relay panel for the switchyard equipment including CT’s and CCVT’s wiring checkout, breaker tripping and closing, relay operations, metering indication, and RTU system interface control and alarms.

Types of Relays Used and Tested:

• Schweitzer (SEL-311C Transmission Line Protection Relay)
• Schweitzer (SEL-321-1 Transmission Line Protection Relay)
• Schweitzer (SEL-351 Distribution Feeder Protection Relay)
• RFL (RFL-9785 FSK Power Line Carrier Relay)
• RFL (RFL-2000 IMUX Communication Relay)
• Schweitzer (SEL-2030 Communication Relay)
• ABB (CA Bus Differential Relay)

Project Description: Project scope is testing and commissioning of a new 500kV switchyard including all bus, high voltage breakers, current transformers, coupling capacitor voltage transformers, ground grid, and protective relaying systems for the equipment, bus and transmission line protection. Functional checkout of relay panel for the switchyard equipment including CT’s and CCVT’s wiring checkout, breaker tripping and closing, relay operations, metering indication, and RTU system interface control and alarms.

Types of Relays Used and Tested:

• Schweitzer (SEL-321 Transmission Line Protection Relay)
• Schweitzer (SEL-279 Breaker Automatic Syncrocloser Relay)
• Schweitzer (SEL-351 Transmission Line Protection Relay)
• Schweitzer (SEL-2030 Communication System Relay)
• ABB (REL-512 Transmission Line Protection Relay)
• GE (SBC Breaker Failure Relay)
• Schweitzer (SEL-587 Bus Protection Relay)
• RFL (RFL-9300 Transmission Line Differential Relay)
• RFL (RFL9785 FSK Power Line Carrier Relay)
• RFL (RFL-IMUX2000 Communication System Relay)

Project Description: Project scope is testing and commissioning of the new 230kV/21kV substation including all bus, transformers, high voltage breakers, medium voltage switchgear, ground grid and protective relaying systems for the equipment, bus and transmission line protection including system end-to-end testing and load tests.

Types of Relays Used and Tested:

• ABB (REL-512 Transmission Line Protection Relay)
• Schweitzer (SEL-321-1 Transmission Protection Relay)
• Schweitzer (SEL-351 Distribution Feeder Relay)
• Schweitzer (SEL-501 Distribution Feeder Relay)
• Schweitzer (SEL-587 Transformer Protection Relay)
• Schweitzer (SEL-279 Breaker Automatic Syncrocloser Relay)
• Basler (BE1-BPR Breaker Failure Protective Relay)

Project Description: Project scope is testing and commissioning of new 500kV switchyard expansions to accommodate the new 500 kV WAPA Path 15 transmission line including the new bus, high voltage breakers, current transformers, coupling capacitor voltage transformers, ground grid, and protective relaying systems for the equipment, bus and transmission line protection. Also included in the project was the testing and commissioning of a new transformer and capacitor banks at each end. Functional checkout of relay panel for the switchyard equipment including CT’s and CCVT’s wiring checkout, breaker tripping and closing, relay operations, metering indication, end-to-end testing and RTU system interface control and alarms.

Types of Relays Used and Tested:

• Schweitzer (SEL-421 Transmission Line Protection Relay)
• Schweitzer (SEL-387 Differential Relay)
• Schweitzer (SEL-351 Transmission Line Protection Relay)
• Schweitzer (SEL-2030 Communication System Relay)
• ABB (REL-350 Transmission Line Protection Relay)
• GE (D60 Transmission Line Protection Relay)
• GE (F60 Feeder Protection Relay)
• GE (T60 Transformer Protection Relay)
• Basler (BE1-BPR Breaker Failure Relay)
• Basler (BE1-25/79 High Speed Reclosing Relay)

• Bitronics (MTWDE1B-S123 Multifunction Meter)

• Westinghouse (KAB Bus Differential Relay)
• Schweitzer (SEL-287V Voltage Differential Relay)
• ABB (REL-512 Transmission Line Protection Relay)

Project Description: Project scope is testing and commissioning of new 230kV switchyard expansions. This testing included the new disconnects, high voltage breakers, current transformers, potential transformers, battery system, and protective relaying systems for the equipment, bus and transmission line protection. Also included in the project was the limited end-to-end procedure for the protection between the Switching Station and the North Receiving Station. Functional checkout of relay panel for the switchyard equipment including CT’s and CVT’s wiring checkout, breaker tripping and closing, relay operations, metering indication, annunciator checkout and RTU system interface control and alarms.

Types of Relays Used and Tested:

• Schweitzer (SEL-311L Line Current Differential Relay)
• GE (Multilin L90 Line Current Differential Relay)
• Basler (BE1-25 Synch Check Relay)
• Basler (BE1-BPR Breaker Failure Relay)
• Westinghouse (KAB Bus Differential Relay)
• Schweitzer (SEL-387 Transformer Differential Relay)
• Schweitzer (SEL-501 Dual Universal Overcurrent Relay)

Project Description: Project provides power factor testing for Illinois Power various substation. Performed power factor testing on substation equipment 345kV, 138kV, 69kV, 34.5kV, 13.8kV, 12.47kV, 4.16kV transformers and oil circuit breakers to determine status of equipment.

Project Description: Testing and commissioning of electrical power and control systems for the cogeneration power plant, totaling 246.5MW of generation and a 13.8Kv/34.5Kv substation. Scope included review of electrical system design review and testing of the 138Kv/34.5Kv substation, transformers, bus, the generators, current transformer, coupling capacitor voltage transformers, medium voltage switchgear, low voltage switchgear and motor control centers, protective relaying for the systems and equipment. Scope also included assistance in startup of the electrical systems, dressing out the generator step-up transformers and 34.5Kv Transmission Line system end-to-end testing and load test. Ongoing maintenance and upgrade testing includes work for 138kV and 34.5kV substations, cogeneration power plants and various processing plant systems. This work includes maintenance and testing of electrical systems for the high voltage substations, transformers, generators, medium voltage switchgear, low voltage switchgear and motor control centers and protective relaying for all systems and equipment.

Types of Relays Used and Tested:

• ABB (CO-7/CO-8 Distribution Feeder Protection Overcurrent Relay)
• ABB (MMCO Distribution Feeder Protection Overcurrent Relay)
• ABB (HU Transformer Differential Protection Relay)
• ABB (KD Transmission Line and Generator Protection Distance Relay)
• ABB (KST Transmission Line and Generator Protection Distance Out of Step Relay)
• ABB (ITE-50/51 Circuit Shield Distribution Feeder protection Relay)
• ABB (ITE-87T Transformer Differential Protection Relay)
• ABB (ITE-40 Circuit Shield Generator Protection Relay)
• ABB (ITE-87M Circuit Shield Generator Protection Relay)
• ABB (CRN Generator Protection Relay)
• ABB (HCB Transmission Line Differential Protection Relay)
• ABB (DPU-2000 Distribution Feeder Protection Relay)
• Beckwith (M-3425 Generator Protection Relay)
• Beckwith (M-3420 Generator Protection Relay)
• GE (DGP Generator Protection Relay)
• GE (BDD Transformer Protection Relay)
• GE (PVD Bus High Impedance Differential Protection Relay)
• GE (SR-750 Distribution Feeder Protection Relay)
• GE (SR-745 Transformer Protection Relay)
• GE (SR-469 Motor Protection Relay)
• GE (SR-269 Motor Protection Relay)
• Schweitzer (SEL-311 Transmission Line Protection Relay)
• Schweitzer (SEL-251 Distribution Feeder Protection Relay)
• Schweitzer (SEL-351 Distribution Feeder Protection Relay)
• Schweitzer (SEL-387 Transformer Protection Relay)
• Schweitzer (SEL-587 Transformer Protection Relay)
• Schweitzer (SEL-501 Distribution Protection Relay)
• RFL (RFL-9300 Transmission Line Protection Relay)

Project Description: Testing of electrical systems for a 475MW simple cycle generating station. Scope included testing transformers, bus, the generators, medium voltage switchgear, low voltage switchgear and motor control centers, and protective relaying for the systems and equipment. Scope also included assistance in startup of the electrical systems.

Types of Relays Used and Tested:

• GE (DGP Generator Protection Relay)
• GE (SR-745 Transformer Protection Relay)
• GE (SR-750 Distribution Feeder Protection Relay)
• GE (SR-46 Motor Protection Relay)
• GE (DBF Breaker Failure Relay)
• Schweitzer (SEL-387 Transformer Protection Relay)
• Schweitzer (SEL-501 Distribution Feeder Protection Relay)

Project Description: Testing and commissioning of electrical power systems for a 212.5MW steam turbine generation and combined cycles waste heat recovery steam generator, Scope included testing transformers, the generator, medium voltage switchgear, low voltage switchgear. Motors and motor control centers, and protective relaying included schematics functional checkout off all control wiring included current and potential circuit for the systems. And equipment.

Types of Relays Used and Tested:

• GE (DGP Generator Protection Relay)
• GE (SR-745 Transformer Protection Relay)
• GE (SR-750 Distribution Feeder Protection Relay)
• GE (SR-46 Motor Protection Relay)
• GE (DBF Breaker Failure Relay)
• Schweitzer (SEL-387 Transformer Protection Relay)
• Schweitzer (SEL-221D Generator Back-up Protection Relay)
• Basler (BE1-27/25 Synch-check Relay)
• Beckwith (M-3425 Generator Protection Relay)

Project Description: Testing and commissioning of electrical power and control systems for the cogeneration power plant, totaling 268MW of generation and a 13.8kV/34.5kV substation. Scope included review of electrical system design and testing of the 34.5Kv substation, transformers, bus, the generators, current transformer, coupling capacitor voltage transformers, medium voltage switchgear, low voltage switchgear and motor control centers, protective relaying for the systems and equipment. Scope also included assistance in startup of the electrical systems, dressing out the generator step-up transformers and 34.5Kv Transmission Line system end-to-end testing and load test. Ongoing maintenance and upgrade testing includes work for the 69kV and 34.5kV substations, the cogeneration power plants and various processing plant systems. This work includes maintenance and testing of electrical systems for the high voltage substations, transformers, generators, medium voltage switchgear, low voltage switchgear and motor control centers and protective relaying for all systems and equipment.

Types of Relays Used and Tested:

• ABB (CO-7/CO-8 Distribution Feeder Protection Overcurrent Relay)
• ABB (MMCO Distribution Feeder Protection Overcurrent Relay)
• ABB (KD-11 Transmission Line and Generator Protection Distance Relay)
• ABB (KD-10 Motor Impedance Protection Relay)
• ABB (KST Transmission Line and Generator Protection Distance Out of Step Relay)
• ABB (ITE-50/51 Circuit Shield Distribution Feeder Protection Relay)
• ABB (ITE-87T Transformer Differential Protection Relay)
• ABB (ITE-40 Circuit Shield Generator Protection Relay)
• ABB (ITE-87M Circuit Shield Generator Protection Relay)
• ABB (CRN Generator Protection Relay)
• ABB (DPU-2000 Distribution Feeder Protection Relay)
• Beckwith (M-3425 Generator Protection Relay)
• Beckwith (M-3420 Generator Protection Relay)
• GE (DGP Generator Protection Relay)
• GE (BDD Transformer Protection Relay)
• GE (PVD Bus High Impedance Differential Protection Relay)
• GE (SR-737 Distribution Feeder Protection Relay)
• GE (SR-469 Motor Protection Relay)
• GE (SR-269 Motor Protection Relay)
• Schweitzer (SEL-387 Transformer Protection Relay)
• Schweitzer (SEL-587 Transformer Protection Relay)
• Schweitzer (SEL-501 Distribution Protection Relay)
• RFL (RFL-9300 Transmission Line Protection Relay)

Project Description: This project includes the annual maintenance of 13.8Kv generator and switchgear power plant testing of protective relay systems for a 12.5MW generating station during plant outages. Relaying tested is for medium and low voltage systems as well as transformer and generator protection. Power factor testing on transformers and oil circuit breakers are also performed.

Types of Relays Used and Tested:

• ABB (KD-11 Generator Backup Protection Relay)
• ABB (KST Generator Out of Step Protection Relay)
• ABB (ITE-87M Generator Differential Protection Relay)
• ABB (ITE-40 Generator Loss of Excitation Protection Relay)
• ABB (CRN Generator Reverse Power Protection relay)
• ABB (ITE-46Q Generator Negative Sequence Protection Relay)
• ABB (ITE-59F Generator Over Excitation Protection Relay)
• ABB (DPU-2000 Distribution Feeder Protection Relay)
• ABB (ITE-51M Distribution Feeder Protection Relay)
• ABB (ITE-51Y Distribution Feeder Protection Relay)

Project Description: Testing of electrical systems for a 625MW combined cycle generating station. Scope included testing transformers, bus, the generators, medium voltage switchgear, low voltage switchgear and motor control centers, and protective relaying for the systems and equipment. Scope also included assistance in startup of the electrical systems.

Types of Relays Used and Tested:

• Beckwith (M-3425 Generator Protection Relay)
• Beckwith (M-3310 Transformer Protection Relay)
• GE (SR-750 Distribution Feeder Protection Relay)
• GE (SR-745 Transformer Protection Relay)
• GE (SR-469 Motor Protection Relay)

Project Description: Project scope is the testing and commissioning of turbine generator, generator step-up transformer, auxiliary transformer, and unit transformer new protective relay panel, functional tests, including schematics and control wiring checkout, and testing current transformers. Potential transformer wiring and functional checkouts are also included as well as providing as-built drawings of the completed system. Startup assistance with the generator system is also provided.

Types of Relays Used and Tested:

• Beckwith (M-3420 Generator Protection Relay)
• Beckwith (M-3430 Generator Protection Relay)
• Schweitzer (SEL-387 Transformer Protection Relay)
• Schweitzer (SEL-501 Distribution Feeder Protection Relay)
• Beckwith (M-0193B Generator Syncroclosure Relay)
• Beckwith (M-0194 Generator Control Unit Relay)
• Basler (BE1-25 Synch Check Relay)

Project Description: Project scope is testing and commissioning of a new 345kV switchyard including all bus, high voltage breakers, current transformers, coupling capacitor voltage transformers, ground grid, and protective relaying systems for the equipment, bus and transmission line protection. Functional checkout of relay panel for the switchyard equipment including CT’s and CCVT’s wiring checkout, breaker tripping and closing, relay operations, metering indication, and RTU system interface control and alarms.

Types of Relays Used and Tested:

• RFL (RFL-9300 Transmission Line Differential and Protection Relay)
• Schweitzer (311C Transmission Line Protection Relay)
• Schweitzer (351 Synchronizer and Breaker Failure Relay)
• GE (PVD21B 345Kv Bus Differential Protection Relay)
• RFL (RFL IMUX-2000 MTS Transmitter Receiver System)

Project Description: Project scope includes firmware upgrade in several SEL-311L relays in addition to calibration and commissioning of all protective devices. Apparatus testing was limited to two 34.5/13.8kV transformers, two 34.5kV breakers, also a nine 13.8kV breaker system arranged in a breaker and one half scheme. The complete Highland Town project included twenty one SEL-311L relays located in five substations combined into seven three terminal connected relay schemes. Protection schemes involved Line Differential and Direct Transfer Trip. Commissioning included SCADA communication from the Highland Town relays through SEL-2030 communication processor and to the SCADA Master Station and end-to-end testing for three substations. Other SEL-2030 devices were installed in substations providing pass through communications to SEL relays not connected to the SCADA system.

Types of Relays Used and Tested:

Project Description: Project scope is testing and commissioning of a new 345kV switchyard including all bus, high voltage breakers, current transformers, coupling capacitor voltage transformers, ground grid, and protective relaying systems for the equipment, bus and transmission line protection. Functional checkout of relay panel for the switchyard equipment including CT’s and CCVT’s wiring checkout, breaker tripping and closing, relay operations, metering indication, and RTU system interface control and alarms.

Types of Relays Used and Tested:

• Altom (LFCB-102 Transmission Line Current Differential and Protection Relay)
• ABB (KD-11 Transmission Line Distance Zone Protection Relay)
• Schweitzer (321-1 Transmission Line Protection Relay)
• Schweitzer (351 Synchronizer and Breaker Failure Relay)
• GE (PVD21B 345Kv Bus Differential Protection Relay)
• GE (JBCG53 Directional Overcurrent Protective Relay)
• RFL (RFL IMUX-2000 MTS Transmitter Receiver System)
• GE Harris (RTU System)

Project Description: Testing and commissioning of electrical systems for 345kV transmission line substation and a 575MW combined cycle generating station. Scope included testing the 345kV substation, transformers, bus, the generators, current transformers, coupling capacitor voltage transformers, medium voltage switchgear, low voltage switchgear and motor control centers, and protective relaying for the systems and equipment. Scope also included assistance in startup of the electrical systems. 345kV transmission line system testing included end-to-end testing and load test.

Types of Relays Used and Tested:

• Alstom (LFCB-102Transmission Line Current Differential Relay)
• ABB (KD-11 Transmission Line Distance Relay)
• Schweitzer (SEL-321-1 Transmission Line Relay)
• Schweitzer (SEL-387 Transformer Protection Relay)
• Schweitzer (SEL-221D Transmission Line Relay)
• GE (DGP Generator Protection Relay)
• GE (SR-745 Transformer Protection Relay)
• GE (DBF Breaker Failure Relay)
• GE (SR-750 Distribution Feeder Relay)
• GE (SR-469 Motor Management Protection Relay)

Project Description: This project includes the annual maintenance of a 13.8Kv generator and switchgear, and power plant testing of protective relay systems for a 12.5MW generating station during plant outages. Relaying tested is for medium and low voltage systems as well as transformer and generator protection. Power factor testing on transformers and oil circuit breakers are also performed.

Types of Relays Used and Tested:

• ABB (KD-11 Generator Backup Protection Relay)
• ABB (KST Generator Out of step Protection Relay)
• ABB (ITE-87M Generator Differential Protection Relay)
• ABB (ITE-40 Generator Loss of Excitation Protection Relay)
• ABB (CRN Generator Reverse Power Protection Relay)
• ABB (ITE-46Q Generator Negative Sequence Protection Relay)
• ABB (ITE-59F Generator Over Excitation Protection Relay)
• ABB (DPU-2000 Distribution Feeder Protection Relay)
• ABB (ITE-51M Distribution Feeder Protection Relay)
• ABB (ITE-51Y Distribution Feeder Protection Relay)
• Beckwith (M-3425 Generator Protection Relay)

Project Description: Testing and commissioning of electrical systems for 345kV transmission line substation and a 475MW simple cycle generating station consisting of six (6) GE 7EA machines. Scope included testing transformers, bus, the generators, medium voltage switchgear, low voltage switchgear and motor control centers, and protective relaying for the systems and equipment. Scope also included assistance in startup of the electrical systems and dressing out the generator step-up transformers. 345kV transmission line system testing included end-to-end testing and load test.

Types of Relays Used and Tested:

• GE (DGP Generator Protection Relay)
• GE (ALPS Transmission Line Protection Relay)
• GE (BDF Breaker failure Protection Relay)
• GE (SR-750 Distribution Feeder Relay)
• GE (SR-745 Transformer Protection Relay)
• GE (SR-269 Motor Protection Relay)
• Schweitzer (SEL-321 Transmission Line Protection Relay)
• Schweitzer (SEL-387 Transformer Protection Relay)
• Schweitzer (SEL-501 Distribution Protection Relay)
• ABB (REL-350 Transmission Line Protection Relay)
• ABB (RADHA Bus Differential Protection Relay)
• Basler (BE1-BPR Breaker Failure Protective Relay)
• Pulsar (TCF-101B XMTR/RCVR Transmission Line Carrier Relay)
• RFL (RFL-9745 AUDIO Tone XMTR/RCVR Transmission Line Relay)

Project Description: Scope includes testing and commissioning of electrical power and control systems for a Siemens Westinghouse 132.75MW simple cycle turbine generator. Scope included testing transformers, bus, the generators, low voltage switchgear and motor control centers, and protective relaying for the systems and equipment checkout schematics circuit function system. Scope also included assistance in startup of the electrical systems.

Types of Relays Used and Tested:

• Beckwith (M-3430 Generator Protection Relay)
• Beckwith (M-3420 Generator Protection Relay)
• Schweitzer (SEL-387 Transformer Protection)
• Basler (BE1-25A Automatic Synchronizer Relay)
• Basler (BE1-27/25 Sync Check Relay)

Project Description: Project scope is the testing and commissioning of turbine generator, generator step-up transformer, auxiliary transformer, and unit transformer new protective relay panel, functional tests, including schematics and control wiring checkout, and testing current transformers. Potential transformer wiring and functional checkouts are also included as well as providing as-built drawings of the completed system. Startup assistance with the generator system is also provided.

Types of Relays Used and Tested:

• Beckwith (M-3425 Generator Protection Relay)
• Beckwith (M-3425 Generator Protection Relay)
• Schweitzer (SEL-387 Transformer Protection Relay)
• Schweitzer (SEL-501 Distribution Feeder Protection Relay)
• Beckwith (M-0193B Generator Syncroclosure Relay)
• Beckwith (M-0194 Generator Control Unit Relay)
• Basler (BE1-25 Synch Check Relay)

Project Description: Project scope is the testing and commissioning of turbine generator, generator step-up transformer, auxiliary transformer, and unit transformer new protective relay panel, functional tests, including schematics and control wiring checkout, and testing current transformers. Potential transformer wiring and functional checkouts are also included as well as providing as-built drawings of the completed system. Startup assistance with the generator system is also provided.

Types of Relays Used and Tested:

• Beckwith (M-3420 Generator Protection Relay)
• Beckwith (M-3430 Generator Protection Relay)
• Schweitzer (SEL-387 Transformer Protection Relay)
• Schweitzer (SEL-501 Distribution Feeder Protection Relay)
• Beckwith (M-0193B Generator Syncroclosure Relay)
• Beckwith (M-0194 Generator Control Unit Relay)
• Basler (BE1-25 Synch Check Relay)

Project Description: This project includes the annual maintenance of 4.16Kv generator and switchgear power plant, including the testing of protective relay systems for a 12.5MW generating station during plant outages. Relaying tested is for medium and low voltage systems as well as transformer and generator protection. Power factor testing on transformers and oil circuit breakers are also performed.

Types of Relays Used and Tested:

• ABB (KD-11 Generator Backup Protection Relay)
• ABB (KST Generator Out of Step Protection Relay)
• ABB (ITE-87M Generator Differential Protection Relay)
• ABB (ITE-40 Generator Loss of Excitation Protection Relay)
• ABB (CRN Generator Reverse Power Protection relay)
• ABB (ITE-46Q Generator Negative Sequence Protection Relay)
• ABB (ITE-59F Generator Over Excitation Protection Relay)
• ABB (DPU-2000 Distribution Feeder Protection Relay)
• ABB (ITE-51M Distribution Feeder Protection Relay)
• ABB (ITE-51Y Distribution Feeder Protection Relay)

Project Description: Project included installation of relay panels in multiple substations including setting and wiring of panels. Relays were cut into existing circuits, tested, function tested for tripping action and communication with the SCADA system, commissioned, and placed into service.

Types of Relays Used and Tested:

• Schweitzer (SEL-351A Distribution Protection Relay)

Project Description: Project scope is testing and commissioning of a new 138kV switchyard including all bus, high voltage breakers, current transformers, coupling capacitor voltage transformers, ground grid, and protective relaying systems for the equipment, bus and transmission line protection. Functional checkout of relay panel for the switchyard equipment including CT’s and CCVT’s wiring checkout, breaker tripping and closing, relay operations, metering indication, and RTU system interface control and alarms.

Types of Relays Used and Tested:

• Schweitzer (SEL-311B Transmission Line Protection Relay)
• Schweitzer (SEL-311C Transmission Line Protection Relay)
• Schweitzer (SEL-321 Transmission Line Protection Relay)
• Schweitzer (SEL-501 Distribution Feeder Protection Relay)
• GE (PVD High Impedance Bus Differential Relay)

Project Description: This project includes the annual maintenance of 115kV substation and generating power plant testing of protective relay systems for a 34.2MW generating station during plant outages. Relaying tested is for medium and low voltage systems as well as transformer and generator protection. Power factor testing on transformers and oil circuit breakers is also performed.

Types of Relays Used and Tested:

• ABB (LCB II Transmission Line Protection Relay)
• ABB (KRD Transmission Line Protection Relay)
• Basler (BE1-87T Transformer Differential Protection Relay)
• Basler (BE1-67 Transmission Line Protection Relay)
• Basler (BE1-50BF Breaker Failure Protection Relay)
• Basler (BE1-51 Distribution Feeder Protection Relay)
• Basler (BE1-51A Distribution Feeder Protection Relay)
• Basler (BE1-51/27 Generator Backup Impedance Protection Relay)
• Basler (BE1-87G Generator Differential Protection Relay)
• Basler (BE1-32R Generator Reverse Power Protection relay)
• Basler (BE1-40Q Generator Lost off Excitation Protection Relay)
• Basler (BE1-46N Generator Negative Sequence Protection Relay)
• GE (CEY-51 Transmission Line Impedance Distance Protection Relay)
• GE (SR-269 Motor Protection Relay)

Project Description: Project scope is testing and commissioning of a new 138kV substation including all bus, high voltage breakers, a 69kV GIS substation, current transformers, potential transformers, 15kV medium switchgear and breakers, ground grid, and protective relaying systems for the equipment, bus and transmission line protection. Functional checkout of relay panel for the switchyard equipment including CT’s and CCVT’s wiring checkout, breaker tripping and closing, relay operations, metering indication, and RTU system interface control and alarms.

Types of Relays Used and Tested:

• ABB (LCB II Transmission Line Protection Relay)
• ABB (DPU-2000R Distribution Feeder Protection Relay)
• ABB (TPU-2000R Transformer Protection Relay)
• GEC/Alstom (LFCB Transmission Line Protection Relay)

Project Description: Testing and commissioning of electrical power and control systems for three gas turbine generators and one steam turbine generator for a total of 260MW of combined cycle generation. Scope included testing transformers, bus, the generators, medium voltage switchgear, low voltage switchgear and motor control centers, and protective relaying for the systems and equipment. Scope also included assistance in startup of the electrical systems.

Types of Relays Used and Tested:

• Beckwith Electric (M-3425 Generator Protection Relay)
• Schweitzer (SEL-351 Distribution Protection Feeder Relay)
• Schweitzer (SEL-501 Distribution Protection Feeder Relay)
• Schweitzer (SEL-387 Transformer Protection Relay)
• Schweitzer (SEL-701 Motor Protection Relay)
• Schweitzer (SEL-300G Generator Protection Relay)

Project Description: This project includes the annual maintenance of a 138kV substation and generating power plant testing of protective relay systems for a 58.795MW generating station during plant outages. Relaying tested is for medium and low voltage systems as well as transformer and generator protection. Power factor testing on transformers and SF6 circuit breakers is also performed.

Types of Relays Used and Tested:

• ABB (IRV-9 Transmission Line Directional Overcurrent Relay)
• ABB (IRD-9C Transmission Line Ground Directional Overcurrent Relay)
• GE (IFC-53B Distribution Feeder Protection Relay)
• GE (BDD Transformer Differential Protection Relay)
• GE (STD Transformer Differential Protection Relay)
• GE (GGP-53B Generator Reverse Power Protection Relay)
• GE (CEH-51A Generator Loss of Excitation Protection Relay)
• GE (CFD-22B Generator Differential Protection Relay)
• GE (IFCV51A Generator Differential Protection Relay)
• GE (IAV-54E System Under Voltage Protective Relay)
• GE (IAV52A System Over Voltage Protective Relay)
• GE (SR-269 Motor Protection Relay)

Project Description: Project scope is testing and commissioning of a new 69kV GIS substation, current transformers, potential transformers, and protective relaying systems for the equipment, bus and transmission line protection. Functional checkout of relay panel for the switchyard equipment including CT’s and PT’s wiring checkout, breaker tripping and closing, relay operations, metering indication, and RTU system interface control and alarms.

Types of Relays Used and Tested:

• Schweitzer (SEL-311L Transmission Line Protection Relay)
• Schweitzer (SEL-321 Transmission Line Protection Relay)
• Schweitzer (SEL-351 Distribution Feeder Protection Relay)
• Schweitzer (SEL-352 Breaker Failure Relay)
• Schweitzer (SEL-587Z High Impedance Bus Differential Relay)