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iPAC-C
Features & Overview | Technical Specifications |
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Measurement functions |

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- Voltage and Current RMS Values
- Neutral Current RMS Values
- Power Factor measurement (Power factor correction:
Capacitor bank switching)
- Total Power measurement
- Real and Reactive Power measurement
- Power Quality measurement (FFT for Harmonic
measurement)
- Frequency measurement
- Total Harmonic Distortion (THD) measurement
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IEEE Protective Devices |
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- Sync Check (25)
- Under Voltage (27)
- Directional Power (32)
- Phase Balance (46)
- Instantaneous Over Current (50)
- Inverse Time Over Current (51)
- Over Voltage (59)
- Voltage Balance (60)
- Directional Over Current(67)
- Reclosing (79)
- Under and Over Frequency (81H/L)
- Lockout (86)
- Differential for Transformer Protection (87)
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Advanced Features for Protections |
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- Coil Monitoring for Breaker Failure detection
- Cold Load Pickup Logic to prevent protective devices from
operating when cold load is switched on the circuit
- Voltage Constraint with Current pickup lowered to
increase sensitivity when voltage is also collapsing during the fault
- Breaker Control Blocking for coordination with upstream
and downstream protective devices via DI or Peer-to-peer communication
- Diverse POTT, DCB, DTT pilot protective schemes ready for
complicated FDIR application of feeder grid system
- Directional on Over Current Devices
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Communication |
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- RS232/RS485 ports: 4 user ports, 1 jumper selectable
maintenance or user port
- 4 Sync/Async ports, 1 Async port, 300 – 38.4 kBaud
- Hand Shaking Signals: DCD, RTS, CTS
- Specifications: Meet all EIA/TIA-232-E and V.28
specifications
- Multiple Open Protocol support: DNP 3.0,
IEC870-5-101, MODBUS, LG8979, CDC II, SC1801, CDT
- Redundant Communication
- Data Concentrator Protocol: DNP 3.0, IEC870-5-101,
MODBUS, CDC II
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Maintenance |
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Window
Based DynaView Maintenance Software
- Window Based DynaConfig Configuration Software
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Monitoring and Supervision |
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- Power Quality measurement: THD and Harmonic Measurement
(up to 32 Harmonics)
- Electronics temperature monitoring
- Circuit Breaker Electric Wearing Statistics
- Trip Circuit Supervision (Base on Value of trip coil
current, auxiliary Contact of the Trip Relay or present of the Voltage)
- Trip/Close Breaker Operation Counters.
- Breaker Travel Time Supervision.
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Control |
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- Power Factor Control (Capacitor Bank Switching)
- Programmable Multiple Shots Recloser (Maximum 6
shots)
- Programmable Digital Output for LED Indications
- Manual Circuit Breaker Control
- Programmable Logic and Sequential Control
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Trending and Recording |
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Transient
disturbance time stamped event recording (triggered by External DI,
Protective Stage Status or Breaker Operation)
- Fault AI Waveform Capturing
- Fault History Recording
- Optional Fault Record Analysis Package (iPS™,
intelligent Power Spectrum)
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Diagnostics |
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- Power Up Diagnostics: Software and Configuration
Integrity Checking
- Digital Output Relay Driver Integrity Checking
- Digital Input Wetting Voltage Monitoring
- AI Reference Monitoring
- EPROM and RAM integrity Checking
- Battery Voltage Monitoring (Optional)
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Configuration Template |
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- Ready made standard configuration or customize the unit
to specific application for detail setting by customer
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Technology |
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- CMOS components for low power consumption
- Extensive use of surface mount components
- Employing In-System-Programming technology for EEPROM
and EPLD
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CPU, DSP and Memory |
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- 32- bit HCMOS Motorola 68332 @ 20 MHz
- 32- bit Floating Point DSP ADSP21062 @ 40 MHz
- CPU Memory: 1 MegaBytes EEPROM. 1 MegaBytes battery
backed up RAM with 3 years of shelf life. Battery can be changed with
live power on for uninterrupted operations
- DSP Memory: 2 Megabits of on-chip RAM, 128 Kilo-Bytes
of Dual Ported RAM
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Real Time Calendar Clock |
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- Hardware calendar clock with year, month, day of month,
day of week, hour, minute and second
- Optional high accuracy, temperature compensated
crystal oscillator, 20.0000 MHz +/- 2 PPM at -20 to 70 degrees Celsius
- Battery backed up Real Time Calendar Clock with 3
years of shelf life. Battery can be changed with live power on for
uninterrupted operations
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Microprocessor Supervisor |
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- Watchdog Timer. Power Monitor. Reset. Power Switching
functions
- Watchdog relay: For system malfunction annunciation,
indication and control overrides
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Power Requirement and On-board Power Supplies |
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- Isolated unregulated 24 VDC (1 Amp) for electronics.
Separate Power Supply for Digital Input excitation
- Switching mode, +5 VDC for digital electronic, +5 VDC,
-12 VDC and +12 VDC for analog electronic
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System Status Indicators |
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- Power On indicator
- Performance indicator
- System Normal indicator
- Control Malfunction indicator
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Digital Inputs |
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- Main Cabinet: Up to 48 optical isolated Digital Inputs
(Expansion Cards required) with input indicator on each digital input
- External Connection: Up to 13 more DI expansion
boards can be added (each DI board accommodates 32 DI points)
- Isolation Rating: 2500 Vrms (point input to logic)
- Hardware Digital Filter: Programmable 2-15 ms
debounce timer, transition detection and interrupt capability. (software
debounce is up to 65535 ms)
- Accumulator: Any Digital Input can be configured as
an Accumulator
- Maximum Rate of Accumulator: 150 Hz
- Types of point: Form A, Form C and BCD
- SOE: Any Digital Input point can be configured as SOE
with accuracy of 1 ms
- Chatter Filter is available for preventing
malfunctioning inputs from filling up the SOE buffer
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AC Analog Inputs |
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- Main Cabinet: Up to 16 AC Analog Input Points for
protection:
Either Voltage or Current inputs. Rating: I nominal = 5 A or 1 A, V
nominal = 120 V, Nominal Frequency: 50/60 Hz
- External Connection: Up to 14 AC AI expansion boards
can be added (each AC AI board accommodates 16 AC AI points) for
monitoring
- Accuracy: +/- 1%
- Temperature Coefficient: +/-5PPM per degree Celsius
- Resolution: 15-bit plus sign
- Auto Self-Calibration Reference Points: -5.000VDC,
0VDC and +5.000VDC
- CMRR (@0-60Hz): 90 dB
- NMRR (@60Hz) 60 dB
- Analog Input self-calibration, Auto-correction of
gain and offset errors
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DC Analog Inputs |
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- Any AC AI can be used as DC Analog Input:
Bipolar, Differential input @ +/- 10.0V, +/- 7.5V, +/- 5.0V, +/- 1.0V,
+/- 1 mA, 0-1 mA, +/- 10 mA, 4-20 mA
- Accuracy: +/- 0.05% (DC voltage input)
- Temperature Coefficient: +/-5PPM per degree Celsius
- Resolution: 15 bit plus sign
- Auto Self-Calibration Reference Points: -5.000VDC,
0VDC and +5.000VDC
- CMRR (@0-60Hz): 90 dB
- NMRR (@60Hz) 60 dB
- Analog Input self-calibration, Auto-correction of
gain and offset errors
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Digital Outputs |
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- Main cabinet: 16 relay outputs with output indicator on
each Digital Output
- External Connections: Up to 14 DO expansion boards
can be added (each DO board accommodates 32 DO points)
- Control Output Configurations: Isolated Discrete
control output relays, Trip/Close, Raise/Lower, Set/Reset, Pattern
Controls, Relay fail to OFF, Relay fail to last commanded position
- Control Security: Single component failure
protection, Master Trip/Close relays, relay driver input status check
back for point selection confirmation, Double point
select-before-operate
- Remote/Local switch for enable/disable controls
- Either a malfunction of the system (detected by the
watchdog), or the failure of a point selection confirmation shuts down
the control module
- Control Functions: ON/OFF, timed ON/OFF (pulse
duration of 1 ms resolution), variable duty cycle pulse output with
variable repetition rate (pulse train of 1 to 254 or continuous, 1 ms
resolution), Pattern controls (a group of contiguous outputs)
- Contact Rating: 10 Amp at 125 VDC
- Dry Contact, 1500 VDC Isolation
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Operating Environment |
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- Temperature Range: -40 to +85 degrees Celsius
- Humidity: < 95%, non-condensing
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Advanced Features |
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- Remote Software download
- Remote Configuration download
- Dual Configurations:
System maintains 2 sets of configuration. One resides in the EEPROM and
the other resides in the Battery backup RAM.
The set in the Battery backup RAM is used for configuration upgrade.
After thoroughly testing, the set in the Battery backup RAM can be
transferred to EEPROM or the set in the EEPROM can be brought back to
active state. That is to say, the user can always fall back to the last
well-tested configuration.
- CPU ambient temperature sensor provided
- The maintenance/application port can be used for host
or maintenance communication with one communication channel. A pseudo
control point is available for switching between the host or maintenance
communication
- Built in Serial I/O Communication analyzer
- Extensive error checking in Configuration
Compilation: Configuration errors can be easily identified and resolved
at the time of configuration not at the time of configuration download
to the FTU
- Time Sync: IRIG-B, RS232
- Front Panel Indicators:
- System Status LED: Power, Performance, System Normal, Control trouble.
- 16 DI LED
- 16 DO LED
- 10 TX and RX LED for 5 communication ports
- 32 DI LED (option)
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