(view specs in pdf format)

EPQ DataNodes

5540 DataNodes

5571 DataNodes

GE kV™ Meter DataNodes

Signature System
DataNode
Comparison Chart

Enclosure Options
116513a Mounting Bracket
116533a-1 Enclosure Bracket
116533a-2 Enclosure Bracket
116577a Panel, Rack Mount
116705b Dual Unit Mounting Enclosure
116721a-1 Enclosure Small Nema 4

The DataNode is the data-acquisition component of the Signature System available in a range of configurations including:

•EPQ (Enhanced Power Quality) DataNode includes advanced features such as cycle RMS, voltage and current transient triggering, interharmonics, and TCP/IP Ethernet communications. The EPQ DataNode is available in three model types: Model 5510, Model 5530 and Model 5520.

•5540 Family of DataNodes was designed for power flow/energy consumption applications and represents the low-cost entry into the Signature System. Four models of the 5540 series of DataNode are available: 5541, 5542, 5543 and 5544. The difference among the various model types centers on the AC supply voltage and current measurement requirements.

•Power Quality DataNode is based on the field-proven Dranetz-BMI 7100 PQNode and is available in two versions: 5571 and 5571S. Although effectively replaced by the EPQ DataNodes, the 5571 remains available as an upgrade path for 7100 customers wishing to take advantage of the InfoNode and its web-based user interface.

•GE kV™ DataNode expands Signature System’s capabilities by adding revenue metering, real cost of service measurement, and complex billing and totalization analysis.

The EPQ DataNodes are designed for comprehensive and PQ-optimized data acquisition for power quality-related disturbances or events.

The trigger and capture mechanisms include:

•RMS variations (V&I)

•rms vs. time plots and waveform plots

•transient waveforms

•peak transients for impulses (V&I)

•steady-state parameter trends and limits sensitivity changes

Because the EPQ was designed from the ground up as a power quality instrument, data is captured and recorded in accordance with the IEEE 1159 standard for power monitoring.

Triggering and current signals are processed by two separate filters: a high-pass and a low-pass filter.

The high-pass filter serves a set of negative and positive peak detectors that are read and reset at the same rate as the low-frequency samples (128 times per cycle per channel).

The low-pass output is used for the RMS (1/2 cycle update), minimum/maximum, and steady-state parameters.

Records only data of interest

Designed as a record-by-exception instrument, the EPQ DataNode allows the user to identify what data is of interest and to record only that data. Advantages to this industry-proven open approach include increased system performance, since the user is not burdened with the added storage and communications bandwidth requirement to handle unneeded data; reduced memory requirements; and increased reliability, since the non-volatile SRAM technology incorporated in the EPQ DataNode is completely electronic and requires no hard disk to handle larger and unnecessary volumes of data.

Voltage and current thresholds

Voltage and current thresholds can be used to trigger up to 16 cycle pre/post cycles of waveforms for each channel and for each event. Five thresholds of sensitivity can be set on an individual or three-phase basis, in percentage or absolute values. In addition to sag, swell, interruption and transient capture — including current transients, which may otherwise be undetectable in situations where surge-suppression devices are installed on the circuit — up to 64 parameters can be selected for trending at user-selected time intervals.

Cross-triggering permits linking of DataNodes

EPQ DataNodes are equipped with a cross-triggering feature that permits linking of many DataNodes to create a virtual instrument with expanded channels. One DataNode, for example, can signal other DataNodes via the network to record events into memory, regardless of whether the other DataNodes triggered on their own. On a local network, cross-triggering is guaranteed to occur within one cycle.

The EPQ DataNode is available in three models:

•Model 5510 is connected to the circuit via two remote pods, one for voltage and one for current. The pod approach allows the instrument to be easily and safely removed from the circuit for calibration or repair. The Model 5510 can be upgraded through optional hardware and firmware. Hardware upgrades include a 4-channel voltage pod (600V Max); a 4-channel current pod (5A, 5x overcurrent); a 4-channel current pod (5A, 20x overcurrent); and V&I transient capture. Firmware upgrades included advanced RMS variation capture, waveform and harmonic visualization, and revenue accuracy (ANSI C12.1).

•Model 5530 is a pre-packaged version of the 5510, with standard features including the 4-channel voltage pod (600V), 4-channel current pod (5A, 5x overcurrent), advanced RMS variation capture and waveform and harmonic visualization. The Model 5530T contains all the standard features of the 5530 and V&I transient capture. Optional upgrades to the Model 5530 and Model 5530T include the 4-channel current pod (20x overcurrent) and the Revenue Accuracy (ANSI C12.1).

•Model 5520 shares its internal configuration with the 5510/5530, but differs in its circuit connections. Instead of the remote pods used in other EPQ DataNodes, the 5520 is equipped with V&I screw terminals on the real panel. Voltage connections are made directly to any circuit under 600 VAC. Standard features include 4 voltage channels, 4 current channels (5A,5x overcurrent) advanced RMS variation capture, and waveform and harmonic visualization. The Model 5520T includes V&I transient capture as a standard feature. An optional feature for both the 5520 and 5520T is Revenue Accuracy (ANSI C12.1).

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The 5540 series of DataNode represents a low-cost entry into the Signature System. Like other DataNodes, the 5540 series is completely integrated into the Signature System and is fully supported by the InfoNode web-browser environment.

The 5540, available in four models, can measure 23 parameters including true RMS voltage and current, KW, KVA, true Power Factor, frequency, KWH, KVAR, KVAh, KVARh, current demand, KVA demand, and KW demand. Up to sixteen 5540 DataNodes can be connected to an InfoNode COM port via 4-wire multidrop RS485, RS422 and RS232 connections.

In addition to its integrated performance within the Signature System, the 5540 is equipped with a 3-line LED display for viewing all measured parameters without the use of a computer. The 5540 is ideal for applications including energy cost allocation, system capacity monitoring, demand-side management, PF penalties, and remote KWH metering. As with all DataNodes, data is collected by an InfoNode and made available to the user via a web browser connected via modem or Ethernet.

Four models of the 5540 series are available:

• 5541   1A CT   115Vac Instrument Power

• 5542   5A CT    115Vac Instrument Power

• 5543   1A CT    230Vac Instrument Power

• 5544   5A CT    230Vac Instrument Power

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5571 Power Quality DataNodes

The first power quality DataNode to be incorporated into the Signature System, the 5571, is based on the field-proven Dranetz-BMI 7100 PQNode. The 5571 is a full-featured, 8-channel (4V, 4I) power quality instrument with monitoring capabilities that include low-frequency waveshape transients; high-frequency transients; true rms cycle-by-cycle minimum/average/maximum timelines; sags; swells; interruptions; kW and kVA demand; kWh; THD voltage; and current.

The 5571 captures the full range of power quality events that often are missed by many power quality meters. Among those events: sags in rapid succession, low-frequency sub-cycle transients, high-frequency impulse transients and sequences of interruptions. In fact, the 5571 captures all the data needed to diagnose power quality events, including pre- and post-event waveforms, complete RMS profiles of sags and swells including initiating voltage and current waveforms, and microsecond peak capture. By logging the cycle-by-cycle minimum, average and maximum values, the 5571 tracks continuous parameters such as rms voltage and current, allowing the user to examine trends of any parameter over the course of a day, a week or a year.

The 5571 is available in two versions, distinguished by their enclosures and their connections to the circuit.

•Model 5571 is housed in an ABS NEMA 4 enclosure with a handle for transportable applications and tabs for mounting to most vertical surfaces. Plug-in voltage and current probes are used for circuit connections. The 5571 connects to the InfoNode via an RS232 or RS485 Interface, which allows up to 32 DataNodes to be linked to a single InfoNode. In the 32-DataNode configuration, users are provided web-browser access to 128 voltage/current channel pairs through a single phone line or network connection.

•Model 5571S is housed in a panel mount enclosure and is intended for switchgear-type applications, directly replacing Westinghouse chart recorders. The 5571S is equipped with rear-mounted screw terminals for all voltage and current connections. Voltage connections are made to any voltage up to 600VAC.

For new Signature Systems, the 5571 model effectively has been replaced by the newer Enhanced Power Quality (EPQ) DataNode. The 5571 now is used primarily as an upgrade path for users of the 7100 PQNode who wish to access the InfoNode and its web-based user interface. An inexpensive upgrade kit is available to convert existing 7100 PQNodes into 5571s for use in the Signature System.

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GE kV Meter