The ezPAC™ has two models with different current transformers connection:

SA320

Four dual purpose current inputs (3 phase + Neutral)— 1A/5A for measurement CTs with Class 0.2S revenue grade accuracy to 10A/20A and 150A for protection CTs (30x)

SA330

Two independent CTs connections:

• 4 inputs 1A/5A for measurement CTs with Class 0.2S revenue grade accuracy to 10A/20A
• 4 inputs for protection CTs—150 A (CT secondary 1 sec.) or 100A with SATEC unique split core Remote CTs

SATEC’s ezPACTM SA300 Power Intelligence Unit is an ideal  cost effective means of automating an electrical substation. The ezPACTM can be installed at a fraction of the cost and  time involved in replacing protection relays. By adding one ezPACTM device on each feeder circuit, ALL the information needed for substation automation is provided. The ezPACTM extends the life expectancy of electromechanical relays for many years by providing the information lacking in electromechanical devices without interfering in the protection scheme.

The ezPACTM is a low cost upgrade, with minimal panel and wiring adjustments. The modular I/O design guarantees a custom-made product fitting any application need.

Relay Target Information

 Get all of the information available from a digital relay without replacing the electromechanical one.

Add-On Protective Relaying Backup

• Under / over frequency relay
• Automatic load shed & restore (0.01Hz with adjustable time delay)
• Time overcurrent relay backup
• Communication protocols
  • Modbus, DNP 3.0
  • IEC 61850

Designed for an electrical utility substation or industrial environment, to record contact  openings  or  closings  of field devices such as electromechanical and microprocessor controlled relays.

The Sequence of Events (SoE) Recorder can log four types of events: digital input events, relay output events, fault events and setpoint events.

When displaying the SoE Log reports, PAS (see pg. 7) establishes links between the event and other database records where it finds a relationship between the recorded data and the event. Comprehensive display and analysis tools allow accurate display of SoE. Color coding of programmable status enables focusing on the important faults at a glance.

Each input point is programmable to be normally open or normally closed. Programmable status words and a 96 alphanumeric character descriptor for each input point is provided. De-bounce times for nuisance chattering of

contacts are programmable from 1 to 100 msec in groups of

eight. Wet or dry contacts can be mixed for up to 128 digital inputs.

The fault recorder provides 4 measured and recorded currents (including measured neutral current). The event log is complemented by waveform recording.

• IRIG-B time synchronization
• 256 MB memory
• Programmable fault thresholds and hysteresis
• Up to 150 amps fault currents (30 x In)
• Zero-sequence currents and voltages
• Current and voltage unbalance
• Under-voltage, neutral current
• Ready-for-use fault reports—fault currents magnitude and duration, coincident volts magnitude, fault waveforms and RMS trace
• Distance to fault calculation
• Waveforms from multiple separate locations (via PAS)

Cutting Edge Power Quality Analyzer & Recorder

 The ezPACTM is the most advanced power quality analyzer and recorder on the market. The instrument is a product of SATEC’s 25 years of experience in the creation of power quality instruments. The ezPACTM is designed to fully comply with the most demanding industry standard, IEC 61000-4- 30 Class A. It provides power quality reports and statistics according to EN50160, complimented by comprehensive power quality event/data log with waveforms available for detailed Power Quality event analysis. Redundant power supply allows full readiness for any power quality event, including major dips and interruptions. The individual harmonics and inter-harmonics are analyzed according to IEC 61000-4-7. The instrument also supports directional power harmonics analysis. Flicker is measured and analyzed according to IEC 61000-4-15.

• Power Quality analysis and reading according to IEC 61000-4-30 Class A
  • Sags/swells (dips/overvoltages), interruptions, frequency variations, voltage variations
  • Flicker, voltage unbalance, harmonic and interharmonic voltages and currents
  • Programmable thresholds and hysteresis
• Directional power harmonics
• Voltage and current THD coefficients
• Currents TDD coefficients and K-Factors
• Waveform, Power factor and Phasor data recorder
• Symmetrical components
• Flicker measurement according to IEC 61000-4-15
• Waveform recording

° Selectable sampling rate up to 256 samples/cycle

• Built-in EN50160 statistics & reports

• Redundant auxiliary power supply for recording major dips & interruptions
• Harmonics & interharmonics according to IEC 61000-4-7
• Power Quality event recorder
• Event recorder for logging internal diagnostic events, control events and I/O operations

The ezPACTM  provides state-of-the-art fast transient recording capability. Transient pulses as short as 78μs at 50Hz (65μs at 60Hz) can be reliably recorded and analyzed. The ezPACTM can record such short pulses by a separate electronic channel with a sampling rate of 256 samples/ cycle. The instrument can measure transient pulses with an amplitude of up to 2 kV (withstands up to 6 kV) and waveforms recording.

Fast Data Logging Recorder

• From ½ cycle RMS to 2-hour envelopes
• Programmable post fault on any internal and/or external trigger condition

Waveform Capture

• Provides simultaneous capture for all voltage and current channels with choice of samples rate, up to 256 with transient option. Selectable pre-fault / post-fault recording length. Disturbance capture recording up to several minutes

• Transient capture (>78μs)

Harmonic Analyzer

• Total Harmonic Distortion for Voltage and Current and up to the 63rd individual harmonic for V, I, P, Q
• Including directional power harmonics (Load or Source)
• V-I angle, TDD and K factors

Multi-Function Power & Energy Meter

• Real time cycle-by-cycle measurement of high accuracy, true RMS voltage, current, power, demand and energy
• Revenue accurate meter
• Exceeding Class 0.2S (IEC62053-22 / ANSII C12.20)

• Advanced Time Of Use (TOU) feature (16 Energy sources include external digital pulses, up to 4 seasons, 4 daily profiles, 8 Tariffs, flexible automatic calendar) for any complex billing
• KYZ or KY output and LED indication for calibration and test
• Vector diagram and symmetrical components

External Time Synchronization

• Provides 1 msec time resolution via IRIG-B time code input or satellite clock for common time base
• As an SNTP client, it can accept periodic synchronization of the meter clock from an SNTP server
• 1ms digital input

Wide Range Voltage Inputs

• Four impulse galvanic isolated AC voltage inputs
• Impulse dielectric withstand 6kV
• Wide range application up to 828V
• DC voltage input—station battery monitoring (up to 300VDC)

Wide Range Current Inputs

• Up to 8 galvanic isolated AC current inputs
• SA320 Model: 4 dual purpose current inputs (3 phase + Neutral)—1A/5A for measurement CTs with Class 0.2S revenue grade accuracy to 10A/20A and 150A for protection CTs (30x)
• SA330 Model: 2 independent CT connections: 4 inputs 1A/5A for measurement CTs with Class 0.2S revenue grade accuracy to 10A/20A; or 4 inputs  for protection CTs – 150 A (CT secondary max. 1 sec.) or 100A with SATEC unique split core Remote CTs

Communication Platforms for Any Need

• 5 independent built-in Com Ports plus two optional:

♦RS232/422/485

♦RS422/485

♦RS485 for Display

♦USB 1 (up to 12Mbps)

♦10/100 Base-T Ethernet

♦Optional IR port

♦Optional 56K Modem

• Communication Protocols: Modbus RTU, ASCII, DNP 3.0,Modbus/TCP, DNP3/TCP, IEC 62056-21/61 (OBIS), IEC 61850

Digital & Analog I/O Options

5 expansion slots for a wide range of plug-in modules:

• 16/32 high speed digital inputs, total up to 128 DIs
• 8/16 dry contact relay outputs, total up to 64 ROs
• 8 analog inputs / 8 fast analog input, total up to 16 AOs
• Mixed 4 analog inputs and 4 outputs, total up to 16 AIOs

Logging, Recording and Programming

• Programmable controller—up to 64 control setpoints, up to 8 conditions OR, AND, arithmetical functions logic, extensive triggers, programmable thresholds and delays, relay control, event-driven data recording

• 8 fast waveform recorders— simultaneous 8-channel AC, one DC: up to 48 digital inputs in a single plot
• Waveform sampling rate 32, 64, 128 or 256 samples per cycle; up to 20 pre-fault cycles
• Up to 3.5 min. of continuous waveform recording
• 1-ms resolution for digital inputs
• 16 fast Data Recorders (16 parameters on each data log): From ½ cycle RMS to 2 hour RMS envelopes; up to 20 pre/post-fault cycles; programmable data logs on a periodic basis and on internal or external trigger
• Precise Energy and Power Demand Meter. Flexible multi- tariff TOU, 16 summary energy and demand registers for substation energy management, accumulation of energy pulses from external kWh meters, block and sliding demands
• 32 digital internal counters
• 16 internal programmable timers (1/2 cycle to 24 hours)