^ERL Power System Monitoring Recorder TESLA LITE Product Overview The TESLA LITE is an economical yet complete power system recorder for applications in smaller substations. This easy-to-use multi-time frame recording system records 12 ac currents, 6 voltage channels and 38 digital (status) channels and stores 150 recordings in on board memory. The TESLA LITE records data simultaneously in three time domains: high speed transient fault (seconds), low speed dynamic swing (minutes), and continuous trend (10 second to 1 hour intervals). A wide variety of triggers are available to initiate recording. The intuitive TESLA Control Panel user interface software configures the recorder, retrieves and manages records and displays real time measured values. Control Panel also includes RecordGraph, a graphical record display and analysis software tool. These features make TESLA LITE a cost effective independent and complete recording solution for small substations. • Easy-to-use settings and analysis software • 96 samples/cycle transient fault recording - captures up to the 25th harmonic • Dynamic swing recording of disturbances. • User-configurable trend recording • Control logic statements to create user definable triggers • Fault location, power factor detectors among many calculated channels • DNP3 and Modbus SCADA support • IRIG-B clock synchronization • Data compression for fast file transfer • 100 BASE-T Fast Ethernet front and rear ports and front USB COM port • Real-time metering of all input and calculated quantities • Cross triggering and database management with RecordBase Central Station Software

Applications As a Multi-Timeframe Power System Recorder and Monitor Use transient fault (fast) records to: • Verify operation of relays and breakers • Improve relay settings • Confirm system and device models and improve coordination Use up to 45 user-defined trends to: • Monitor seasonal variations of load • Analyze and model system component Use dynamic swing (slow) records to: • Review loading and stability criteria • Verify power swing damping to improve stability • Study SVC and PSS performance • Detect sub-harmonic oscillations • Understand out-of-step tripping As a PQR: • Monitor single...

RecordBase Central Station • Automated record transfer from on a scheduled call-out or by recorder initiation • Supports COMTRADE, PTI and Excel output formats • Company-wide access on existing Windows® computers through the corporate LAN Easy-to-Use, Intuitive Windows-Based Setting and Analysis Software • • • • • • Lossless data compression for fast file transfer Offline mode to view records and set configurations Many user-definable triggers User-assigned trigger priorities User-programmable control logic User-configurable report templates RecordGraphTM and RecordBase ViewTM Waveform Analysis Software...

Detailed Specifications TESLA LITE Power System Monitoring Recorder Item General Nominal Frequency Sampling Rate Power Supply Recording Rate: Transient Fault Dynamic Swing User-configurable, up to 45 trending channels 5 mode - Damped, Undamped, Avg, Min, Max 10 to 3600 seconds sample rate Daily logging limit of 250 events Daily event log recording Analog Input Accuracy +/- 0.1% of FS amplitude +/- 0.5 degree phase Record Storage 150 fault, swing or combined records 16 bits, 65536 counts full scale Channels and Triggers Analog Inputs High and low threshold, positive and negative rate of change,...

TESLA LITE Power System Monitoring Recorder Item Quantity/Specs Notes Input & Output External Inputs (digital) 38 inputs Output Contacts 5 programmable outputs and 1 cross trigger contact, 1 recorder inoperative output Optional 48/125/250 Vdc nominal, externally wetted Externally wetted Make: 30 A as per IEEE C37.90 Carry: 8 A Break: 0.9 A @ 125 Vdc 0.35 A @ 250 Vdc Interface & Communication Front Panel Indicators 6 LEDs Recorder Functional, IRIG-B Functional, Recorder Triggered, Records Stored, Test Mode, Alarm Front User Interfaces Rear User Interfaces Internal Modem SCADA Interface...