Energy Saving & Energy Management:

The M4000 series brings revolution to your power. It stores all information all the time. The waveform of every cycle is continuously stored in on board memory for memory than a year at high accuracy, allowing no gaps in data recording. In addition, a unique time synchronization algorithm assures that data form multiple locations is synchronized and displayed on the same time scale. The result is that every anomaly can be accurately analyzed and its source can be pinpointed definitively. Since all data is stored continuously and accurately over a long period of time, the M4000 is much more than an analysis device, but rather a full fledged power quality data center.

The main objective of power quality troubleshooting engineers is to identify the source of an event or potential failure, and determine the required corrective action. When performing troubleshooting procedures, there is always a lack of information; data between events, events that occurred below pre-set thresholds, data from other locations, and other un-recorded parameters. The lacking information is due to the traditional logging concept of long periods and short events. As a result, in most cases it is only possible to monitor the event without identifying its source. More importantly, it is virtually impossible to determine what needs to be done to prevent reoccurence of the problem.

How does it work?

Patent-pendig PQZip compression technology with a typical 1000:1 compression ratio allows virtually unlimited onboard data storage. The data is stored in its raw format (waveforms), allowing all possible parameters to be calculated from this information. The available parameters include all usual parameters such as RMS voltages, currents, powers and harmonics, and also grid or electrical network impedances. By analyzing the impedances, it is possible to investigate the root of the phenomenon and not only its consequences.

A unique time synchronization algorithm assures that measurements from different locations are synchronized. By analyzing multiple locations with high time accuracy, the exact propagation of the anomaly can be monitored and analyzed.

What Makes it so Unique?

The M4000 series is much more than a Power Quality Analyzer; it is a 4th generation Power Quality Center.

1st Generation	:	Simple power meters without memory, whether analog ordigital.
2nd Generation	:	Data loggers that provide periodic data logging.
3rd Generation	:	Power Quality Analyzers that allow logging of partial information according to pre-defined thresholds.
4th Generation	:	Power Quality Data Centers that stores all required data every cycle for more than a year.

While 3rd Generation equipment can tell what happened and when (e.g., a voltage sag of X% at locations Y at time Z), Power Quality Data Centers tell why it happened and what the source of the problem is. Using these 4th Generation devices will allow the power quality engineer to perform corrective action to prevent the problem from reoccurring.

It thresholds are still desired, no longer is there guess-work involved in advance ... Rather, simply use post-processing thresholds. When data logging is completed, simply select the suitable thresholds to obtain the necessary data from an event.
To accurately analyze an event when using 3rd Generation event-based meters, each of the following would need to occur:

• All meters in the network detect the event and record it.
• All meters have the required amount of memory.
• All possible parameters are recorded and event thresholds set correctly.
• All meters are time-synchronized in micro seconds resolution.
• The analysis software used can analyze all of the above simultaneously.

Unfortunately, usually at least one of the above items does NOT happen, making it impossible to correctly analyze events. Even in cases where an educated guess may provide the answer, it is usually NOT definite enough to drive expensive correction actions.

The Solution:

The M4000 series includes:

• M4400 - Power Quality Data Centers
• M41 00 - Remote monitors/displays (optional)
• PQSCADA - Central analysis software

M4400 are installed at key measurement points along the grid or electrical network, and data is logged continuously during every cycle of the network at up to 1,024 samples per cycle and stored for more than a year in the internal memory of each M4400. The data can be gathered periodically via computer using PQSCADA softwarefor detailed analysis.

The M4000 series features a unique time synchronization algorithm that allows synchronization between devices connected on the same LAN with typical accuracy of 100 micro seconds.

PQSCADA Analysis Software:

Comprehensive Web Serverfor Remote Monitoring
The integral web server allows comprehensive monitoring and control of the unit, with 3-level user privileges and 128-bit SSL cryptographic protocol. It includes tabular display screens, graphical display and remote control and configuration screens. By using an existing web browser, the inconvenience of installing dedicated software is avoided. Most operations can be performed via the web server interface; the screens are intuitive and easy to use. This means that monitoring, managing and analyzing network data can be performed using the web interface.

PQSCADA Power Quality Management Software (Enterprise Edition)
Innovative PQSCADA enterprise analysis software enables operators to view, control, analyze and monitor multiple measurements devices simultaneously. Data is accurately time-synchronized within sites and across sites.

The practically unlimited amount of data, collected from the M4400 devices, is processed and analyzed by using the PQSCADA software. The operator receives a comprehensive picture of graphical system trends and time synchronized power quality values from multiple devices on same screen for statusand anomaly source-propagation analysis.

The software's distributed architecture is scalable and allows easy management of countless local and remote measurement devices. The scalability scheme supports physical expansions and reflects the hierarchy of the components in the electrical grid.

The architecture is built on nodes, sites and enterprises:

Nodes are software components that directly control measurement devices for collection, storage, management and ultimate analysis of measurement data.

Nodes are grouped logically under sites which serve as entry points for various applications (internal and 3rd party) and provide a real-time picture of all connected points for management and configuration functions. Enterprises is the umbrella site that comprises all sites provides all-inclusive
snapshots of the network (trends and data).

Measurement:

• Accuracy < 0.1%
• Up to 1 ,024 samples per cycle
• 11 channels: 4 voltages, 4 currents, 3 temperature indicators
• Simultaneous 11 channel sampling at 250 kHz (4 micro see)
• Cycle-by-Cycletrends for all RM S values and harmonics
• Harmonics up to 511th, inter- and sub-harmonics
• Accurate measurement even with presence of harmonics and at all measurement scale
• Onboard auto temperature calibration provides high accuracy in all temperature range
• Full scale readings l0x from nominal voltages and currents at high accuracies

Onboard Data Logging:

• 1 + year, every cycle on board logging of all measurements at high accuracy
• Patent-pending PQZip compression technology with typical 1000:1 compress ratio
• Solid-state standard off-the-shelf compact flash storage, up to 8GB

Standard Compliance:

• Standard compliance testing to EN 50160, and others
• 2 simultaneous and parallel harmonic computations: IEC 61000-4-30 and cycle-by-cycle
• Voltage flickering according to IEC 61000-4-15 and unique fast flicker compatible algorithm for real-time analysis.