NxtPhase T&D Corporation Optical Products
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1 NxtPhase T&D Corporation Optical Products
2 Introduction Digital & optical solutions for electric power industry Optical Sensors: Current, Voltage & Combined Relays & Recorders Offices Winnipeg Phoenix Vancouver The Vision: all-digital integrated substation
3 NxtPhase Introduction History NxtPhase was formed by combining industry leading teams in: Optical current sensing Optical voltage sensing Protection & recording solutions Fiber Optic Current Sensing Technology Digital Relays & Recorders Engineering Optical Voltage Sensing Technology
4 The Pieces Control Room
5 Optical Sensors Benefits Performance Features Accuracy exceeds ANSI/IEEE class 0.15/IEC class 0.2S Wide dynamic range Bandwidth from dc to 100 th + harmonic Seismic performance User-adjustable turn-ratio No CT Saturation Excellent phase accuracy Safety & Environmental Concerns Uses dry nitrogen as insulating gas not oil, cellulose, or SF 6 No open secondaries No ferro-resonance Galvanic isolation from HV line
6 Optical Sensors Benefits (2) Installation Savings & Retrofit Capability Weight is 10% of conventional device Voltage & current in one device Zero footprint CT is possible Metering & protection relaying in one device Self Monitoring Simple and Flexible Setting Graphical User Interface provides a user-friendly interface to permit system health monitoring and parameter modification Simplifies substation design by allowing a simple template design for multiple applications Leads to digital communications & data acquisition
7 Some Installations Utility / Customer Product Voltage Application Location BC Hydro NXVCT 230 kv Protection Trial Ingledow Substation, Surrey, BC, Canada Hydro Quebec NXVCT 138 kv Revenue Metering Rolls Royce gas-turbine station, Montreal, PQ Arizona Public Service NXVCT 230 kv Metering & Protection Deer Valley Substation, Phoenix, AZ BC Hydro NXVCT 230 kv Protection Trial Ingledow Substation, Surrey, BC, Canada BC Hydro NXVT 500kV Calibration Powertech Testing Lab BC Hydro NXVCT 500 kv Revenue Metering Ingledow Substation, Surrey, BC, Canada Northern California Power Authority NXCT 230 kv Revenue Metering Geothermal Plant, Sonoma County, CA American Electric Power NXVCT 345 kv Metering & Protection PSERC Project, Columbus, Ohio Portland General Electric NXVT 138 kv Calibration Portland, Oregon LACTEC NXVT 138 kv Calibration Brazil Commonwealth Edison NXVCT 138 kv Revenue Metering Mendoda Hills Wind Farm, IL Hydro One NXVT 138 kv Monitoring Transients (PQ) Duplex Substation, Toronto, ON Alabama Power NXCT 115 kv Revenue Metering Sylacauga, AL NIST NXCT LV Calibration CTs Gaithersburg, MD Entergy NXCT 69 kv Revenue Metering 3 systems in Orange, TX Portland General Electric NXCT 138kV Metering & Protection Portland, Oregon, mobile substation Xcel Energy NXVCT 345 kv Revenue Metering Lamar, CO Interconnect Commonwealth Edison NXVCT 138 kv Revenue Metering Crescent Ridge Wind Farm, IL EKA Chemicals NXCT-DC 50 ka P&C, and metering Magog, Quebec, 6 installations Entergy NXCT 115 kv Revenue Metering Amite, LA DynAmp -Alcan NXCT-DC 260 ka P&C, and metering Laterrier, Quebec, Canada, 2 systems VA TECH - ENEL NXCT 420 kv Breaker/Protection Italy, Terna (Candia) VA TECH - NGT UK NXCT 420 kv Breaker/Protection UK, Sundon VA TECH - Wienstrom NXCT-GIS 420 kv Metering & Protection Austria DynAmp -Alcan NXCT-DC 80 ka P&C, and metering Beauharnouis, Quebec, Canada Portland General Electric NXVCT 230 kv Metering & Protection Portland, OR APS NXVCT 230 kv Metering & Protection Phoenix, Arizona AltaLink NXCT 230 kv Shunt Cap Protection, 4 systalberta, Canada, 4 systems Areva/Hydro Quebec NXCT-DC 69 kv HVDC in Static VAR Comp Quebec Canada, De-Icer project
8 Optical Sensors NXCT, NXVT, NXVCT BC Hydro s Ingledow Substation 230 kv Combined Voltage & Current Optical Sensor
9 Installation Example NXVCT-115 Hydro Quebec s Rolls-Royce Substation 115kV Combined Voltage & Current Optical Sensor
10 Installation Example NXVCT-230 APS s Deer Valley Substation 230 kv Combined Voltage & Current Optical Sensor
11 Installation Examples NXVCT-500 BC Hydro s Ingledow Substation 500 kv Combined Voltage & Current Optical Sensor
12 Installation Examples NXCT-69 Entergy Gulfrich Substation 69 kv Optical Current Sensor
13 ComEd Wind Farm 138kV NXVCT
14 AIS, Breaker Mounted NXCT-420 Feb 2004 NXCT Mounted on a 420 kv class 4000 A circuit breaker for protection application Successfully tested with >2000 breaker operations on two different models
15 Sundon Substation, Breaker Mounted NXCT-420 Sep 2005 Sundon Substation National Grid (UK) 420 kv
16 Applications SB6-2Y Circuit Breaker with NXCT CANDIA Enel Terna Substation 420 kv
17 NXCT in Gas Insulated Substations NXCT GIS-NXCT-420 Wienstrom, Austria Conventional CT
18 Low Ratio CT, for Capacitor Bank Unbalance Protection NXCT-230 Calgary, Alberta
19 NXCT-F3-DC 25 ka Installation EKA Chemicals, Magog, Quebec
20 Trailer-Mounted Portable NXVT for Calibration NXVT-500kV, BC Hydro Hydraulics to lift and/or tilt Software-Adjustable Ratio: Same unit used for 525 kv, 245 kv, and 145 kv applications
21 Adjustable Lifting Mechanism for Live Connection Scissors lift platform for live line connection
22 Fiber Optic Current Sensor Current Carrying Conductor Light Source Polarizer Modulator Circular Polarizer Fiber Optic Loop Photo Detector Digital Intelligence Mirror data
23 The NXCT CT Head can have Multiple Sets of Fiber Wound Around Head Various primary connections Composite Insulator No gas/oil inside!!!
24 NXCT Accuracy - Linearity over Dynamic Range S Accuracy Class S Accuracy Class Error (%) Ratio Phase Error (min) Current (A) Current (A) -40
25 NXCT for Protection: Accurate replication of primary current (108 ka peak Positive Offset) This example 2000 A rated primary, 108 ka peak, fully offset 200 mv rated secondary NXCT 2000A NXCT 200mV DFR Current (A) S017 8/25/01 17:17 108kA peak 10.8 V peak CT Ref Secondary Primary Time (arb.)
26 NXVCT CT Head can have Multiple Sets of Fiber Sensors VT Multiple Electric Field Sensors Internal Shielding to Moderate Surface Perturbation Effects Composite Insulator Low pressure dry nitrogen
27 NXVT Accuracy - Linearity Percent of Rated Voltage (%) Ratio Error (%) IEC 0.2% Accuracy Class IEEE 0.3% Accuracy Class Ratio Error (%) Phase Error (minutes) Phase Error (minutes of arc) Applied Voltage (kv) -50
28 NXVT Accuracy over Temperature Class 0.2 limits Class 0.2 limits Ratio Error (%) Ratio Error Column Temp Temperature ( C) Phase Error (minutes) Phase Error Column Temp Temperature ( C) :00 6:00 12:00 18:00 0:00 6:00 12:00 18:00 0:00 Time (hr) :00 6:00 12:00 18:00 0:00 6:00 12:00 18:00 0:00 Time (hr)
29 AIS-NXCT Specifications Voltage Classes Metering Accuracy AC: up to 800 kv DC: up to 500 kv Exceeds IEC Class 0.2S, Exceeds IEEE Class 0.15S Protection Accuracy IEC Class 5P/IEEE 10% Dynamic Range Short-time Current Temperature Range Bandwidth 1 A to 4000 A for metering 80 ka rms, 216 ka peak -50 C to +65 C DC to 6 khz
30 AIS-NXVT Specifications Voltage Classes Metering Accuracy Protection Accuracy Dynamic Range Temperature Range Bandwidth 110 kv to 550 kv Exceeds IEC Class 0.2, Exceeds IEEE Class 0.15 IEC Class 3P, IEEE Class 10% <2% to >200% of rated voltage -50 C to +55 C 0.001Hz to 6 khz
31 NXCT-F3 (Flexible Form Factor)
32 NXCT-F3 125 V dc Power Output: ±10 Full Scale CT Electronics Low Voltage Modulator Drive - Shielded Twisted pair Optical Fiber Cable Optical Modulator box Sensing Loop(s) Current A Optical Modulator box Current B Optical Modulator box Current C 3-Phase NXCT-F3 Block Diagram
33 NXCT-F3 Technical Specifications Parameter Value Comments Input Full scale bus current NXCT-F3-AC NXCT-F3-DC Up to 100 ka-turn AC Up to 600 ka-turn DC AC only (no DC) DC and AC Output Voltage output ±10 V max Resistive load > 5 kw Optional current output ±1 A rated (X 2) for metering ±5 A rated (X 1.5) for metering Maximum burden 0.25 W Maximum burden 0.1 W Separate chassis for amplifiers Current measurement accuracy Down to ± 0.2% Depending on current level, temperature, AC or DC Current measurement Bandwidth DC to 6 khz AC or DC option Environmental Operating temperature, electronics Operating temperature, sensing head -5 to 40 C Temperature specification over which accuracy specification is maintained. -18 C to +60 C Narrower temperature range for higher accuracies Amplitude Error (%) Accuracy over frequency Frequency (Hz) Ideal for: retrofit, line monitoring, portable live calibration, and highcurrent generation applications
34 NXCT-F3 Various temporary installation configurations around bushings - measuring current through the bushing and/or calibrating magnetic bushing CTs
35 Interface (One-line diagram) Many types of interface are available: NXVT NXCT HV Line or Bus Conventional CT Fibers 4 V Fibers & cables NXVT Opto-Electronics 4 V Voltage Amplifier (HEA) 1.0/2.5 VA NXCT Opto-Electronics 4 V 1A/5A Metering Current Amplifier (HEA) 2.5 VA (B-0.1) 200 mv 1A X10 Protection Current Amplifier (HEA) 0.1 VA IEC lt IEC lt More Current Amplifiers (HEA) if required Relays or meters, with IEC Digital Interface Relay 3 1 A 69/115 V 1/5 A 69/115 V 1 A 1 A LEA Current Input LEA Voltage Input Meter Relay 1 Relay 2 Conventional Current Input
36 Electronics Modules (all 3-phase) Splice tray Electro-optics chassis Combined power supply & 1A metering amplifier chassis
37 Preferred Meter Interface NXVT NXCT HV Line or Bus Fibers Fibers & cables NXVT Opto-Electronics 4 V Voltage Amplifier (HEA) 2.5 VA NXCT Opto-Electronics 4 V 1A/5A Metering Current Amplifier (HEA) 2.5 VA (B- 0.1) Meters Types Any Class II commercially available meter with conventional inputs: Landis & Gyr Elster 115 V 1 A Schneider Electric Itron Meter
38 Preferred Protection Interface NXVT NXCT HV Line or Bus Conventional CT Relay Types Selected low energy voltage input relays from various manufactures: Fibers Fibers & cables NXVT Opto-Electronics NXCT Opto-Electronics 200 mv NxtPhase Selected Models From: GE SEL Siemens 1 or 5 A 4 V Relay Conventional Current Input LEA Current Input LEA Voltage Input
39 High Energy Protection Interface NXVT NXCT HV Line or Bus Conventional CT Relay Types Fibers & cables NXCT Opto-Electronics Any commercial relay which meets the burden specification. Fibers NXVT Opto-Electronics 4 V Voltage Amplifier (HEA) 1.0/2.5 VA 69/115 V 200 mv 1A X10 Protection Current Amplifier (HEA) 0.1 VA 1 A 1 A More Protection Current Amplifiers (HEA) if required 1 or 5 A Relay 1 Relay 2
40 Questions
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