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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.

This meter is available in a transducer configuration (EPM 7000T) that comes without a display and has a DIN rail mount. It’s ideal for use in retrofit applications and where budgets are a large consideration.

Key Benefits

Power quality metering with historical data logging

Waveform Capture, up to 512 samples/cycle

Expandable I/O with 100BaseT Ethernet

Multiple communication ports for integration with DCS and SCADA systems

Supports DNP 3.0 and Modbus protocols

Applications

Metering of distribution feeders, transformers, generators, capacitor banks and motors

Medium and low voltage systems

Commercial, industrial, utility

Flexible control for demand load shedding, power factor, etc.

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 realtime up to the 40th order, and stored waveforms may be viewed up to the 255th order.
METERING

The following electrical parameters are measured and remotely accessed from the EPM 7000.

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 table below describes the feature set of each software option.

Software Option
Measured Values
Real-Time
Avg
Max
Min
A Voltage L-N  
Voltage L-L  
  Current Per Phase
Current Neutral  
% of Load Bar      
Voltage Angles      
Current Angles      
Watts
VAR
VA
PF
Frequency  
+Watt-hr      
-Watt-hr      
Watt-hr Net      
+VAR-hr      
-VAR-hr      
VAR-hr Net      
  VA-hr      
 B
The above plus data-logging
2 MB Data-Logging      
 C
The above plus Harmonic Analysis
Harmonic Analysis      
 D
The above plus Limit and Control
Limit and Control Functions      
E
The above plus
Waveform Capture
Waveform Capture at
64 samples/cycle
     
  3 MB total Data-Logging      
E
The above plus
Waveform Capture and
Additional Memory
Waveform Capture at
512 samples/cycle
     
  4 MB total Data-Logging      
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

This card provides 100BaseT Ethernet functionality. Up to 12 simultaneous Modbus TCP/IP connections are supported

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:

Relay status Outputs/ 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

SPECIFICATIONS
EPM 7000T TRANSDUCER OPTION

The EPM is available in a transducer configuration. This meter version 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 two-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)

  • Industrial Multi-Tenant Monitoring
  • Commercial/Residential Buildings
  • Healthcare Institutions
  • Government Buildings
  • Manufacturing
  • Educational Campuses
 

 


Assembly


 

 


Diagram