Extremely Advanced Technology for Critical Measurements
From the Industrial Giants, Fortune 100 companies to municipal utilities, an energy management and power monitoring program is critical to their success. The Nexus® 1500, the most advanced monitoring product, provides the global picture of power quality and usage from any metered point within a distribution network, enabling users to make power-related decisions quickly and effectively.
- Technology designed specifically for Electricity Companies and Industry.
- Real-time Power Quality Monitoring and Analysis for rapid event detection.
- Peak Demand Management and Energy Efficiency.
- Reliable access to all information via Ethernet or Serial Communications
- Advanced Transient Analysis for Critical Power Systems
The ideal solution for monitoring Transformers and Switches.
Transient recorder and power meter with advanced power quality and communications
General features
- Accu Self-Calibration Technology-Measure™
- 06% Energy Accuracy
- The perfect choice for Critical Applications
- Color Touch Screen
- Unparalleled performance
Communications, I/O and User Interface
- Standard 10/100BaseT Ethernet port
- Expandable Serial Ports (RS485 Dual)
- Modbus, Modbus TCP, DNP 3.0 Level 2
- 8 Simultaneous connections via Ethernet
- Optional Second Ethernet Port
- 256 Vivid Color Display
- Optional 100BaseT Fiber Optic Port
- Information downloads 20 times faster than existing equipment
- Up to 16 Relay Outputs
- Hasts 40 Digital State Entries
New Generation of Transients in Power Quality Analysis
10MHz Transient Recorder (166,000 Samples/Cycle) 8 Channel Waveform Recorder
Surge & Stress Sag Recorder
Current Failure Analysis
1 GB memory - Extensive recording capacity
Applications
- Measurement in electric companies
- Commercial measurement
- Sub stations
- Industrial measurement
- Generation
- On-Campus Measurement
- Sub-measurement
- Replacement of analog measurement
- Transmission and Distribution Substations
- Generation
- Highly Critical Industries
- Hospitals - Diagnostic Centers
High Performance Billing Features
Extensive Load Profile Capacity: Virtually Unlimited Historical Records
System Event Recording: The meter records any event that violates the authorized operation of the meter as
Re-Starts
Changes to the Programming
Access Changes - Password
Time and Date Adjustment
Turning the Meter Off - On
Firmware Changes
Line and Transformer Loss Compensation: for Iron and Copper
Energy Integration and Accumulation: through digital inputs, for different loads or consumables such as Gas and Water
TOU Fare Capacity: 20-Year Calendar of Consumption and Bidirectional Demand
Recording and Integration of Max / Min Values: with time stamp for all variables
Coincidental Readings: Identification of necessary Capacitive Stages, Peak Inefficiencies, etc.
Access key: Inviolable, configurable by user
Predictive Demand: Using the rate of change, the meter predicts the level of demand for the next interval, ideal for Peak Demand Cut
Accu Self-Calibration Measurement Technology-Measure™
The patented Self-Calibrating Measurement Technology (Accu - Measure™) allows the meter, once installed, to maintain its original accuracy through time and temperature changes. This technique is unique to EIG and utilizes precision measurement technology and highly accurate internal references.
Accu features - Measure™:
- 8 Independent High Power A/D Converters - 16 Bit
- Dual Internal References for Periodic Self-Calibration
- Internal Temperature Logging for Deviation Correction
- Designed for consistent and repeatable energy measurement results
Benefits of Auto-Calibration Technology
- Improves accuracy with temperature changes
- Improves meter reliability by reducing the need for replacements
- Improves long-term stability
- Internal DC Reference Pattern Support to maintain accuracy
Technology V-Switch™
The Nexus®1500 meter is equipped with EIG's exclusive V-Switch™ technology, which makes it possible to field upgrade the meter without removing it from service, which it includes:
- V1: Nexus® 1500 Base Meter, 128MB Memory 512 Samples/Cycle
- V2: V1+ 1GB total memory and 1024 Samples/Cycle
- V3: V2+ 10MHz Transient Recorder
Waveform Recording and Detailed Power Quality Reports
EIG's NEXUS® 1500 meter is one of the best fault and voltage disturbance recorders in the industry. This instrument is capable of capturing the history of voltage performance and power quality events in on-board memory for detailed forensic analysis later.
- 16-Bit Fault and Waveform Recorder
- Records up to 1024 Samples/Cycle and transients in 166,000 Samples/Cycle
- Voltage and current recording with Pre and Post Fault events
- Fault Capture Capacity up to x8 Full Scale
- High Resolution (16-Bit Analog/Digital Converters)
- Available Hardware and Software Shots
- Individual Harmonics up to order 512th for Voltage and Current
- Real-time harmonics up to 128th order.
- THD% and K-Factor calculations
- Power Quality Analysis to the highest order in the harmonic magnitude spectrum
High Speed Entry Shots:
- Waveform Recording in case of change in Digital Inputs.
- Digital Events and Waveforms with time stamp (1 msec).
[Multi-Channel Waveform Recording]
[Fasorial Analysis]
[Sub-cycle transients with 10MHz resolution]
[Flicker in compliance with EN61000-4-15]
Flicker measurement EN61000-4-15:
- Flicker meter EN61000-4-15
- Complies with EN61000-4-15
- Operational for 220 VAC at 50Hz and 120 VAC at 60Hz measurements through standard test points.
Recording of Transients in Sub Cycle (Option V3):
Transients cause very costly intermittent downtime, sub cycle disturbance analysis allows:
- Record transients less than one cycle with 10MHz resolution
- Noise monitoring of capacitive stages, STRS, SCRs and other Harmful devices
- This feature is essential for critical applications such as Hospitals, Computer Centers and other applications highly sensitive to Power Quality problems.
Independent CBEMA/ITIC curve recording
- Fast and Intuitive detection of total events (SAGS, SURGES etc.) in magnitude and duration graph
Fasorial analysis:
- The meter records and presents in real time, the voltage and current phasors and their angles for the verification of the integrity of the system.
Multiple Programmable Memory Registers
Virtually Unlimited Historical Records
The NEXUS® 1500 is equipped with a large memory capacity, which can be divided by user for different types of storage, adjusting the amount of variables and the amount of memory per record. There are 8 independent records with up to 64 parameters per record. With this feature, the meter can record for years.
[Extensive historical
[Out-of-Limit Registration]
Out-of-Limit Records
The Meter provides a separate Out of Limit log, which enables the user to download information to obtain the sequence of events in the event of an event. With 1 msec resolution, the records can be combined with different measurement points in the power system providing an accurate description of any power disturbance.
Waveform Registration (Event Shooting)
The NEXUS® 1500 records waveforms with a resolution of up to 1024 samples/cycle. The number of stored events is based on the amount of memory installed.
The meter records waveforms when a value goes outside its limit and when the value returns to normal. All information is time stamped at 1msec. The 8 Internal High Speed inputs can record Waveform events. It records when a breaker is activated and compares it to the activation of a Protection Relay, a useful function for breaker integrity analysis. The meter can be programmed to make more than one recording each time an event occurs. Thousands of cycles can be recorded per event.
Out-of-Limit Records
The Meter provides a separate Out of Limit log, which enables the user to download information to obtain the sequence of events in the event of an event. With 1 msec resolution, the records can be combined with different measurement points in the power system providing an accurate description of any power disturbance.
Waveform Registration (Event Shooting)
The NEXUS® 1500 records waveforms with a resolution of up to 1024 samples/cycle. The number of stored events is based on the amount of memory installed.
The meter records waveforms when a value goes outside its limit and when the value returns to normal. All information is time stamped at 1msec. The 8 Internal High Speed inputs can record Waveform events. It records when a breaker is activated and compares it to the activation of a Protection Relay, a useful function for breaker integrity analysis. The meter can be programmed to make more than one recording each time an event occurs. Thousands of cycles can be recorded per event.
CBEMA/ITIC registration
The NEXUS® 1500 records a separate record for the CBEMA curve containing magnitude and duration of voltage and current sags and surges for each power quality event. This allows the user to conduct a real-time analysis of the CBEMA curve without the need to download waveform information. The CBEMA Log allows a more comprehensive form of Power Quality analysis over time.
System Event Log
The NEXUS® 1500 records any event that threatens the unauthorised operation of the device such as
- Re Beginnings
- Changes to the Programming
- Access Changes - Password
- Time and Date Adjustment
- Turning the Meter Off - On
- Firmware Changes
Digital Input Registration
This record allows the user to record the moment the internal inputs change state.
Upgradeable FLASH memory
The NEXUS® 1500 uses upgradeable flash memory technology in all its processors and DSPs, ensuring that the meter can be updated in the field.
Limit Setting Control
The NEXUS® 1500 provides user-programmable limit settings, allowing the meter to be configured to be used as a control device for applications such as
- Capacitor Control
- Slicing of Cargo
- Automatic Transfers
- Transformer Monitoring and Control
- Redundant Protection (Not Primary)
- Other Control Applications
Transient Registration / Waveform
The NEXUS® 1500 can record waveforms through its programmable memory to detect Surges, Sags and Transients. Thousands of events can be stored at a resolution of up to 1024 samples/cycle and 10MHz for transients.
User Adjustable Memory Structure
The user can adjust the size of memory assigned to each Record, to the point of assigning the whole to a given study, making the meter optimally use its resources, according to the intended use.
Extraordinary Download Speed - Up to 20 Times Faster, Easier to Use
Internal Communication for any application
Standard Communications:
- 100BaseT Ethernet RJ45 port
- ANSI Optical Port and Front USB Port 8 Internal High-Speed Digital Inputs
- They automatically record whether the circuit is externally excited (wet)
- Accepts up to 150 VDC (wet connection)
- The meter supplies the necessary voltage for control applications (dry connection)
Aux. voltage (5th Channel) high speed Synchro Check for:
- Neutral to Ground Voltage Monitoring
- Synchronization Schemes
- Obtaining frequency, magnitude and phase angle of both sides of a breaker, or between Generator and Voltage Bar.
Optional second Ethernet and RS485 ports:
- Two RS485 Serial Ports up to 115kBauds
- Standard protocols include Modbus RTU/ASCII and DNP 3.0 Level 2.
- Second Ethernet port available in RJ45 or Fiber Optic
- Separate MAC address and configuration for each Ethernet port
DNP 3.0 Level 2 PLUS The most advanced in the industry, meets Level 1 and 2, additionally:
- Up to 136 Measurements ( 64 Binary Inputs, 8 Binary Counters, 64 Analog Inputs) can be assigned in DNP 3.0 mapped direction per user
- Up to 16 relays and 8 restarts can be controlled via DNP
- Report by Exception" Deadband Processing (DNP Events) adjusted by point.
- 250 Events Available, with combinations of up to four events (Binary Input Changeover, Frozen Counter, Counter Changeover, Analog Changeover)
- Freeze Commands: Frozen, Frozen/Unrecognized, Frozen with Time, Frozen with Time/Unrecognized
- Time Frozen Command allows the meter to have an internal freeze counter with associated events
- Adjustable secondary scale that maximizes the 16 bits of analog inputs which optimizes the resolution in the SCADA.
Rapid Ethernet Response™:
- The Ethernet 10/100BaseT communication port with Rapid technology Response™ allows simultaneous communication of up to 8 users via Modbus TCP protocol. The DNP 3.0 over TCP protocol is also available. Rapid technology Response™ accelerates and optimizes the download time and the integrity of the information.
- With a novel TCP technique, the meter downloads data up to 20 times faster than the existing NEXUS® technology. There are no long waits to acquire data.
Internal I/O
Relay Outputs
- 6RO1: 6-Relay Output Card
- 5 Amps / 125 Volts AC/DC
- Form C (Latching)
Pulse outputs
- 485P: two-port RS485 and Pulse card
- KYZ pulses
- Pulse width: 5msec
- Relay Type: Solid State
- 2 RS485 Ports
Status Entries
16DI1: 16 status input card
For Pulse Accumulation or Alarm Detection
Up to 150 VDC (wet) or 24 VDC nominal (dry) internal
Note: The Nexus® 1500 has one slot for 485P (slot 1) and 2 slots for 6RO1 &16DI1 (slots 3 & 4)
External I/O
External Output Modules
Analog Outputs:
- 1mAON4/1mAON8: 4 or 8 Analog outputs of 0-1mA, self-powered, scalable Bidirectional
- 20mAON4/20mAON8: 4 or 8 Analogous 4-20mA outputs, self-powered, scalable, bidirectional.
Wiring: Common Mode.
Accuracy: 0.1% of full scale
Calibration: Auto Adjust
Scale: Programmable
Coupling: up to 4 Analog Output Modules per Nexus® 1500 Meter.
Digital Relay Outputs (Dry Contacts)
- 4RO1: 4 relay outputs, 5 Amps, 125 AC/DC, Form C - (Latching)
- To order: 1 module in addition to the internal modules
Solid State Pulse Digital Outputs:
Digital Relay Outputs (Dry Contacts)
- 4PO1: 4 solid state pulse outputs, KYZ pulses form A or C
Maximum pulse rate: 20 pulses per second
- To Order: 4 modules per meter
Accessories for External Modules (Required):
- PSIO: Required for output module use and must be ordered with the module. The Nexus® 1500 does not provide an internal source for output modules.
- MBIO: Mounting accessory for external module. It must be ordered for each external module.
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