GEAutomationControl

EPM 7000 Power Quality Meter

Power Quality and Energy
Cost Management

The EPM 7000 provides continuous metering of three-phase systems with waveform and data logging. It performs energy measurements with 0.2% accuracy and supports optional Ethernet, relay, status, and analog output communication modules. This flexible meter can be used for a wide range of high accuracy applications including disturbance recording and power quality studies.

The EPM 7000T is a transducer configuration that comes without a display and has a DIN rail mount.

GE Grid Solutions has discontinued sales of EPM 7000T. As an alternative, please refer to the EPM7000PT .

Key Benefits

Power quality metering with historical data logging
Waveform Capture, up to 512 samples/cycle
Optional 100BaseT Ethernet (Modbus/DNP or Modbus/IEC 61850)
Multiple communication ports for integration with DCS and SCADA systems
Standard RS485 Modbus (DNP 3.0 and Modbus RTU or ASCII)

Applications

Four quadrant energy & power monitoring for feeders, transformers, reactors and generators
Monitoring of LV and MV industrial power systems, motor control centers & distribution utilities
Energy monitoring for commercial buildings
Metering device for Power Quality & Load Studies (data logging option required)

Communications

Equipped with Front Mounted IrDA Communications port
Rear mounted RS485 serial interface which supports Modbus, and DNP 3.0
KYZ pulse outputs that are mapped to absolute energy.
Two expansion slots used for field replaceable I/O cards

EPM 7000 FEATURES

The EPM 7000 meter provides revenue class (0.2%) three phase power metering with optional Ethernet, relay, status, and analog output communication modules. This flexible meter can be used for a wide range of high accuracy applications including disturbance recording and power quality studies.

EPM 7000 can easily be mounted in a panel for generator monitoring, substation automation, power quality studies, data recording and more. The meter can also provide data to RTUs, PLCs and other control devices.

The EPM 7000 is a highly accurate meter providing 0.1% accuracy for Voltage and Current. The unit’s real-time clock provides time stamping of all logs as they are created. Up to 2 MB of data can be logged for analysis of historical trends, limit alarms, I/O changes and sequence of events.

Advanced Logging Capability
(With Software option B and higher)

Historical Logs:

3 Assignable Historical Logs
Independently Program Trending
Up to 64 Parameters per Log

System Events Log:

Demand Resets
Password Requests
System Startup
Energy Resets
Log Resets
Log Reads
Programmable Settings Changes

I/O Change Log:

Times Stamped Log of any Relay Output
Time Stamped Log of Input Status Changes
2048 possible events

Limit/Alarm Log:

Provides Magnitude and Duration of an Event
Time Stamp and Alarm Value provided
2048 possible events

Limits Alarms and Control Capability (Option D and higher)

Any measured parameter
Up to 16 limits can be selected
Voltage Imbalance
Current Imbalance
Based on percentage full scale settings

Power Quality Analysis
(Options E and F)

The EPM7000 can record voltage sag, swell, and current fault events. It records up to 512 samples per cycle, when events occur the meter will record pre and post event activity at a programmable sampling rate. Up to 4MB of storage is available allowing for a maximum of 170 events to be stored. Waveform data is stored in a circular buffer, this means that the meter is always recording.

The data sampled can be viewed as a real-time waveform, giving the user the ability to use the meter in an oscilloscope fashion. Harmonics can also be viewed in real time up to the 40th order, and stored waveforms may be viewed up to the 255th order.

INSTALLATION

Universal Voltage and Current Inputs
This meter allows voltage input measurements 20 Volts to 576 Volts Line to Neutral and up to 721 Volts Line to Line. This ensures proper meter safety when wiring directly to high voltage systems. The unit will perform to specification on 69 Volt, 120 Volt, 230 Volt, 277 Volt and 347 Volt power systems.

Unique Current Input Connections
EPM 7000 meter uses two current input wiring methods.

Method One - CT pass through. Directly pass the CT through the meter without any physical termination on the meter. This insures that the meter cannot be a point of failure on the CT circuit. This is preferable to utility users when sharing relay class CTs. No Burden is added to the secondary CT circuit.

Method Two - Current “Gills.” The meter additionally provides ultra-rugged termination pass through bars allowing the CT leads to be terminated on the meter. This also eliminates any possible point of failure at the meter. This method is also a preferred technique for ensuring relay class CT integrity does not get compromised. No terminal blocks are required and this stud based design ensures that CTs will not open under a fault condition.

Through an optional high speed Modbus communications interface, the meter can also provide data to RTUs, PLCs and other control devices at Baud rates ranging from 9600 baud to 57.6 kbaud.

Solid Construction with Mounting Versatility

The EPM 7000 has a rugged design for harsh environment. This is especially important in power generation, utility substation, and critical user applications. The structural and electrical design of this meter was developed based on the recommendations and approvals of many of our utility customers.

EPM 7000 can easily be mounted in a panel for generator monitoring, substation automation and more. The unique dual design combines ANSI and DIN mounting structure and allows easy installation for both new metering applications and retrofit of existing analog meters.

The unit mounts directly in an ANSI C39.1 (4” Round form) or an IEC 92 mm DIN square form.

SOFTWARE OPTIONS

The EPM 7000 is equipped with a virtual firmware based switch that allows feature upgrades through communications even after installation. This allows you to optimize your metering investment. Begin with a standard meter and upgrade it with more functionality as new features are needed, such as data logging, waveform capture or more memory. The tables below describe the feature sets of each of the software and waveform options.

WAVEFORM OPTIONS

COMMUNICATIONS OPTIONS

Front Mounted IrDA
All EPM 7000 meters come equipped with Front Mounted IrDA Communications port. This eliminates the need for a communications cable when the technician has an IrDA-equipped PC or a PDA with COPILOT EXT software. The meter can be set-up and programmed through the IrDA connection.

Rear Mounted Serial Port with KYZ Pulse
The RS485 serial interface supports Modbus, and DNP 3.0 at baud rates ranging from 9600 to 57.6K. Also supported are KYZ pulse outputs that are mapped to absolute energy.

Expandable I/O and Communications Capabilities
EPM 7000 meters have two expansion slots used to accept new I/O cards. These slots can be equipped at the factory or in the field. The meter auto-detects installed I/O cards. Up to two cards of any type may be used per meter.

E1:

100BaseT Ethernet Card (Modbus, DNP)
12 simultaneous Modbus TCP/IP connections
5 simultaneous DNP over TCP/IP connections
Network Time Protocol (NTP) support (Network Clock Sync)
Embedded web server, Smartphone access compatible
Available support for dual Ethernet Ports available

E2:

IEC 61850 Ethernet Card
Simultaneous Modbus and IEC 61850
IEC 61850 Support including:

Configurable .CID file
5 Simultaneous MMS Clients
Multiple Logical Nodes
Polled Operation Mode (Queried Reports)
Buffered and Unbuffered Reports

C1:

Four Channel Bi-directional 0-1mA Outputs
Assignable to any parameter
0.1% of Full Scale
0 to 10KΩ
Range ±1.20mA

C20:

Four Channel 4-20mA Outputs
Assignable to any parameter
0.1% of full scale
0 – 500Ω, no accuracy losses
Loop Powered up to 24VDC

RS1:

Two Output Relays/ Two Status Inputs
250VAC/30VDC – 5A Relays, Form C
Trigger on user set alarms
Set delays and reset delays
Status Inputs – Wet/Dry Auto Detect (Up to 150VDC)
Requires Software Option D or higher for limit based alarms and control

PS1:

Four Pulse Outputs / Four Status Inputs
Programmable to any energy parameter and pulse value
Normally Open Contacts, Form A
120mA continuous load current
Status Inputs – Wet/Dry Auto Detect
(Up to 150VDC)
Can function for manual relay control and limit based control
Requires Software options D or higher for limit based alarms and control

F1:

Fiber Optic Interface with ST terminations
Daisy Chain switchable built-in logic mimics RS485 half duplex bus.
ST terminated
Modbus and DNP 3.0 Protocols available

F2:

Fiber Optic Interface with Versatile terminations
Daisy Chain switchable built-in logic mimics RS485 half duplex bus.
Versatile terminated
Modbus and DNP 3.0 Protocols available

EMBEDDED WEB

The EPM 7000 with Ethernet (E1,E2 options) includes a secure web server that is viewable from a variety of web browsers. The web server supports multiple simultaneous connections to view the following information:

Voltage and Current Reading
Power and Energy Readings
Power Quantity Information
General Meter Information

SPECIFICATIONS

EPM 7000T TRANSDUCER OPTION

GE Grid Solutions has discontinued sales of EPM 7000T. As an alternative, please refer to the EPM7000PT .

The transducer configuration comes without a display and has a DIN rail mount. It’s ideal for use in switchgear retrofit applications where access to the meter face and display is not necessary, and where budgets are a large consideration.

Features

EPM 7000 Power Meter without display, DIN mount
Mounts directly in ANSI C39.1 (4” round form) or and IEC 92mm DIN square form
Uses minimal panel space with 4.25” panel depth
0.2% Watt-Hour Accuracy and waveform capture at up to 512 samples/cycle
Up to 4MB of data logging
Field Replaceable I/O modules

Mounting

MULTILIN METER ENCLOSURE

Expanding existing switchgear or installing new metering capability can be challenging due to space limitations, downtime and installation and equipment costs. GE's Multilin Meter Enclosure is a pre-wired configured, economical solution for both retrofit expansions and small scale meter installations that allows the expansion of existing switchgear capability without expensive and time-consuming design.

When ordered as a meter option the enclosure provides a factory pre-wired, installation-ready metering solution that further drives energy cost savings, by enabling the measurement of key energy usage information along multiple metering points for new or existing systems.

Ordering the enclosure is simple when selected as an option during meter configuration, ensuring correct pre-wired meter-compatible delivery.

Pre-Wired, Configured and Economical Solution for Retrofit and Small Metering Systems

Easy and Rapid Installation

Factory pre-wired, installation-ready GE metering solution eliminates wiring and associated errors for rapid installation
Extend metering capability with new systems and existing switchgear without system installation downtime

Cost-Effective Retrofit Solution

Save up to 200% versus the addition of a new switchgear cabinet
Compact footprint makes effective use of existing allocated space
Allows new installations or the expansion of existing switchgear capability without expensive, time-consuming designs, eliminating system downtime

Reliable and Compatible

Backed by a 10 year warranty
Simple meter option ordering ensures compatibility with GE EPM 2000/6010/6000/7000 meters
Comprehensive factory testing of both meter and enclosure together
NEMA1 tested and UL/CUL certified

Applications (New and Retrofit installations)