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EPM 9900P
High Performance Power Quality and Transient Recorder Meter

The Multilin™ EPM 9900P is one of the most advanced monitoring products on the market today, providing a comprehensive perspective of energy usage and power quality metrics for critical energy circuits.

Features such as 0.06% accuracy, available high speed 50MHz Transient Recorder, advanced communication interface/protocol capabilities, and up to 4GB of logging make the EPM 9900P perfect for industrial and utility substation automation applications where both power quality monitoring, high accuracy and easy integration/commissioning are required.

Key Benefits

Ideal for revenue and power quality monitoring in applications such as of utility substations, advanced industrial manufacturing, datacenters and hospitals with high resolution transient recording (up to 50Mhz) and high accuracy 0.06% Watt/Hr energy metering with demand and time of use capture.

Constant Calibration metrology self calibrates every 10 seconds ensuring highly stable readings

Large 4GB memory makes it possible to log years of captured data

Easy integration with flexible communications options and protocols supporting simultaneous Modbus, DNP and IEC 61850 communications

Standardize setup, commissioning, ongoing maintenance using IEC 61850 settings files

Upgradeable for future requirements with modular communications I/O and software option upgrades


Modbus, DNP 3.0, IEC 61850 including high speed GOOSE messaging for cross triggering data capture

Standard Ethernet with dual Ethernet capability

Port control to secure and disable services/ports

Easy system integration supporting up to 32 Modbus TCP/IP sockets per Ethernet port and Up to 16 Relay Outputs/40 Digital Status Inputs

Measuring and Metering

0.06% Energy Accuracy (ANSI 0.2%)

50MHz Transient Recorder (over 800,000 samples/cycle)

Harmonics to the 511th order (Voltage,Current), 127th order in real time

Voltage Sag/Swell, Current Fault and Transient Recording

Up to 4 GB data logging

Class A IEC 61000-4-30 Power Quality & EN50160 Reporting Support

Application example Communications IEC 61850 Enclosure Software Technical specifications

Providing high performance power quality analysis functions, the EPM 9900P delivers high accuracy power quality monitoring and transient waveform capture, and reporting data in compliance with IEC 61000-4-30 Class A and EN 50160 international standards. This provides power system managers with a deep understanding of each circuits’ power usage and reliability.

With up to 4GB of data logging, including 50 MHz transient capture, the EPM 9900P ensures that essential power quality data and events are captured, stored, and time synchronized allowing for comprehensive analysis of events. The EPM 9900P also supports a multitude of communications protocols such as Modbus, DNP3 and 61850 making it easy to integrate and retrieve data into a SCADA or data analysis system. The EPM 9900P is a clear choice for applications where critical revenue accurate metering is an absolute necessity such as power utility or industrial applications.

Power generation / Grid automation / Industrial / Commercial data center
Application Example
Multifunction Metering & Power Quality Monitoring
The EPM 9900P can provide a total picture of power usage and power quality at different points within a power distribution network, allowing users to make power related decisions quickly and effectively. EPM 9900P application example
Flexible Communications Options
The EPM 9900P meter offers up to 6 simultaneous communication ports and multiple protocols to meet almost every need.

Hardware Features:

2 optional RS485 ports speaking Modbus and/or DNP 3.0

USB front panel port

ANSI optical front panel port

2 separately addressable Ethernet ports

Optional Fiber or RJ45 media on one Ethernet port

8 Built-in Digital High-speed Status Inputs:

Inputs automatically sense whether the circuit is externally wetted

If externally wetted, input up to 150 VDC is accepted

If internally wetted, the meter supplies the necessary voltage for the control application

Industry-Leading DNP 3.0 Level 2 Plus – Complies with DNP Level 1 and Level 2 Certification Requirements:

Up to 136 measurements (64 Binary Inputs, 8 Binary Counters, 64 Analog Inputs) can be mapped to DNP static points

Up to 16 relays and 8 resets can be controlled through DNP

Report-by-exception processing (DNP Events) deadbands with unsolicited response for serial communication

250 available events, in four event types (Binary Input Change, Frozen Counter, Counter Change, and Analog Change)

Ethernet Communication Port Capabilities:

2 Ethernet ports provide multiple simultaneous communication

Each port has separate MAC address and IP address

Supports Modbus TCP/IP, DNP 3.0 and IEC 61850

GOOSE messaging protocol supported for IEC 61850

Up to 32 Modbus TCP/IP sockets per Ethernet port

Highly secure port control to disable unneeded services and ports

Email Function - SMTP email to client on alarm

Precise Time Synchronization - SNTP Time Sync protocol

File Transfer Protocol - High-speed file data transfer

VAUX Input:

Neutral to ground or aux voltage readings

Synchronizing schemes, for example, obtaining the frequency, magnitude, and phase angle on both sides of a switch or between generator and bus voltage

Secure Communications:

The EPM 9990P offers 9 levels of password security to protect the meter from unauthorized use. Each level can be configured to enable specific capabilities, so that a Utility can control access to functions according to the type of user. For example, one user level is able to create and change TOU calendars, while a different user level is able to read TOU data, but not change anything.

EPM 9900P front view

EPM 9900P rear view
Easy System Integration and Available IEC 61850 Solution
Software options B and above offer an embedded IEC 61850 Protocol Server for seamless integration with substation automation and industrial 61850 applications.

The IEC 61850 Protocol Server allows up to 6 simultaneous MMS clients.

Either Ethernet port can be configured for IEC 61850 (only one port at a time can run IEC 61850)

GOOSE publisher/subscriber functionality is supported.

Buffered and unbuffered reports are supported for the following triggers: general meter interrogation, for example, the report is generated in response to a query; meter integrity, for example, the report is generated according to a programmed interval; and data change, for example, the report is generated due to a change in the contents of a dataset.

File transfer is supported

Embedded Web Protocol Server support is available for IEC 61850 CID file uploading, IEC 61850 Protocol Server status and for displaying incoming and outgoing GOOSE messages.

Multiple Logical Nodes, which map flicker, harmonics, digital inputs/outputs, limit state, voltage, current, energy and other data, are supported.

Waveform capture can be triggered by status input data inside GOOSE messages. The user can program up to 16 status inputs that will trigger a waveform capture when the information is received via a GOOSE message. The status inputs include digital inputs, limit states, and any other status input supported by the meter.

Software Options
The EPM 9900P Software options lets you upgrade meter functionality even after installation. This means you can purchase what you need now and then upgrade in the future for the additional needs.
software table
Unique GOOSE Cross Trigger

Fault-based cross trigger of waveform based on GOOSE message

Provides system-wide distribution fault analysis on an event

Timing better than 200 microseconds is typical

Many different circuits can be viewed after an event occurred

Intelligent Substation IEC 61850 Design
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. meter enclosure
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 9900P meters

Comprehensive factory testing of both meter and enclosure together

NEMA1 tested and UL/CUL certified

Applications (New and Retrofit installations)

Utility/Industrial Power Quality Studies

Healthcare Institutions

Government Buildings


Educational Campuses

Data Centers

Multilin Meter Enclosure
The installation of the GE’s Multilin Meter Enclosure is simple, safe and eliminates downtime through simple mounting and wiring. The enclosure is UL/CUL certified and NEMA 1 rated making it ideal for indoor environments. It is provided in two voltage configurations (120-240V and 277V) to ensure compatibility with customer installations. The standard equipment includes voltage fuses; a shorting block for current transformers; and a control power transformer for 277V power systems that are pre-wired and configured to ensure safety, quality and long-term reliability.
meter enclosure
GE Communicator Software
This software connects remote meters via Serial, Ethernet or Modem. It allows users to view real time metered data, configure and analyze collected information from remote EPM power meters.

EnerVista Integrator
GE Communicator displays real-time data from supported meters. The data is presented in a simple and powerful graphical format so that laymen access data easily. The software offers many screens, including:

Voltage, Current, Power & Energy

Time of Usage & Accumulations

Power Quality

Harmonics to the 255th Order

Actual Real time Waveform Scopes

Alarms & Limits

Max. & Min. for Each Parameter

I/O Device Information

EnerVista™ Launchpad

EnerVista Launchpad is a powerful software package that provides users a platform to access all of the setup and support tools needed for configuring and maintaining GE Multilin products.

EnerVista Launchpad allows configuration of devices in real-time by communicating using RS232, RS485, Ethernet or modem connections. Using Launchpad as the single interface to the setup and analysis software makes it easy to enter set points, read metered values, monitor status and evaluate power quality.

Included in EnerVista Launchpad is a document archiving and management system that ensures critical documentation is up-to-date and available when needed by automatically checking for and downloading new versions of manuals, applications notes, specifications and service bulletins.

EnerVista Integrator
EnerVista Integrator is a toolkit that allows seamless integration of GE Multilin devices into new or existing automation systems by sending GE device data to HMI, DCS and SCADA systems. Included in EnerVista Integrator is:

OPC/DDE Server

GE Multilin Drivers

Automatic Event Retrieval

Automatic Waveform Retrieval

Technical Specifications

Technical specifications