General description

Eaton’s Cutler-Hammer MP-3000 motor protection relay is a multi

functional microprocessor-based protective relay for the protection

of any size motor at all voltage levels . It is most commonly applied

on medium voltage or larger motors . The MP-3000 relay is a current-

only device that provides complete and reliable motor protection,

monitoring, and starting control functions .

The MP-3000 motor protection relay is available in either a fixed

mount, semi-flush case or in a semi-flush quick release drawout

case . Both housings are compact and fit a standard IQ cutout .

The optional quick release drawout case features two-stage contact

disconnects and self-shorting CT circuit terminal blocks . A spare self

shorting terminal pair is available for use as a relay removal alarm or

for continuous motor operation (non-failsafe mode) on relay removal .

The optional communication module is externally mounted on the

fixed mount case and internally mounted in the drawout case .

The MP-3000 motor protection relay has three-phase and one

ground current inputs . Both a 5A and 1A version are available . The

ground protection and metering functions can be used with either

a zero sequence ground CT or from the residual connection of the

phase CTs . The zero sequence ground CT provides greater ground

fault sensitivity than the residual connection . The unit is user-

programmable for 60 Hz or 50 Hz operation .

The MP-3000 motor protection relay has two discrete inputs, four

Form C (1 NO and 1 NC) contacts and one 4 to 20 mA analog

output . A fused source is available for the discrete inputs on the

MP-3000 . This eliminates additional control circuit wiring . The relay

provides maximum user flexibility to configure the I/O . All inputs

and outputs (except for the trip output) are user-programmable . In

addition, the relay has 10 LEDs for the indication of protection on,

program mode, monitor mode, view setting mode, history mode, log

mode, trip, alarm, auxiliary 1 and auxiliary 2 operation . Monitor mode

provides display indication of the discrete input states . The program

mode provides testing of the output relays, target LEDs, and

analog circuit .

A user-friendly operator interface and display provides quick access

to the settings, monitored values, motor history, and operational

logs . The large LED alphanumeric character display provides easy

viewing from any angle in any light . Simple keypad operation pro

vides quick and easy navigation through all settings and stored data .

The program mode and emergency override buttons are access

restricted via a seal and latched cover . An integrated help function

provides an online description display of functions, abbreviations,

and operations .

Mp-3000 motor protection

Applications

• Protection for three-phase AC motors

• Medium and large motors

• Motors with high inertia loads

• Motors with reduced voltage starting

Protection functions

• I2t overload protection (49/51)

• Locked rotor (49S/51)

• Ultimate trip current (51)

• Negative sequence phase unbalance (46)

• Instantaneous overcurrent (50)

• Ground fault protection (50G)

• RTD trip and alarm with URTD module (49/38)

• Underload trip (37)

• Starts per time (66)

• Jam or stall (51R)

• Auto or manual reset (86)

• Failsafe or non-failsafe trip modes

• Alarming

• Control

• History

Monitored values

• Motor currents

• RTD temperatures

• Motor conditions

Communications

• Optional interface capability to computer network for data

collection, storage and/or printout via the Cutler-HammerT

PowerNetE system

Physical characteristics

• User-friendly interface

• Large LED display

• Optional quick-release drawout case

• Height: 10 .25 inches (260 .4 mm)

• Width: 6 .72 inches (170 .7 mm)

• Depth: 2 .54 inches (64 .5 mm) without PONI, 4 .39 inches

(111 .5 mm) with PONI

Standards and certifications

• ULT recognized (file number E154862)

• UL 1053 recognized

• UL 508 recognized

• ANSI C37 .90. C37 .90 .1. C37 .90 .2

• CSAT

The industry standard in quality

• Each Eaton vacuum interrupter is tested throughout the manufacturing process

and once again before packaging

• A dielectric withstand test and a vacuum assurance test are performed

on every interrupter

• Additionally, Eaton also incorporates a sequential laser-etched bar code that

allows us to track material lots, as well as the operators involved with building

each interrupter in a database

• With well over five million Eaton vacuum interrupters in service around the

world, our customers testify that our vacuum interrupters are one of the most

critical and reliable components 

State-of-the-art testing

Using our two high-power test labs, a single phase development lab in the

United States and a three-phase KEMA®-certified lab in Europe, Eaton

systematically tests new designs before certification by the customer.

A team of scientists and design engineers creates our vacuum interrupters to

meet customer specifications, many of which push the limits of industry standards.

Some distinguishing features include:

• Solid dielectric encapsulation (silicone and heat shrink sleeve offered)

• Customer-specific terminal designs

• Features for ease of assembly

• Custom internal and external threads

• Anti-twist bushings

• Custom contact design: butt contacts, transverse magnetic field (TMF) contacts,

axial magnetic field (AMF)

Proven vacuum interrupter technology

Environmentally focused circuit protection for global innovation

Vacuum interrupter technology

Eaton’s vacuum interrupter technology is used for repetitive switching, motor inrush

current interruption, fault protection, and overcurrent and short-circuit protection.

Eaton‘s environmentally friendly medium-voltage interrupters are capable of reliably

switching high-stress currents robustly and carrying their rated continuous current

without forced cooling.

• Controlled contact erosion results in long life and maintenance-free operation

• Hard contact material minimizes contact sticking in a vacuum and is ideal for

high-current applications

• Atmospheric contact contamination is eliminated because oxides and corrosion

layers cannot form on the contacts

• Noise and flash free: All arcing is confined in the vacuum interrupter

• Environmentally friendly: Unlike other solutions that use SF6 (a highly hazardous

gas) for insulation, Eaton’s vacuum interrupters feature current interruption

that occurs in a vacuum and does not emit greenhouse or toxic gases

• Low average chopping current results in a minimal induced transient voltage

spike; therefore, suppressors are often not required

• Vacuum dielectric permits contacts to be arranged closer together, allowing

circuit interruptions to be designed in a smaller envelope

• Solid insulation increases external dielectric performance

Audience

The audience for this document is the Specifying or System

Engineer, the operating personnel and the troubleshooting

personnel. This document will guide the system user to apply

and program the FP-5000. The document will provide operating

information, enabling the operating user to start and trip the

breaker associated with the FP-5000. The operator can refer to

this publication regarding any operation of the FP-5000. This

document will also provide information to program the FP-5000

and use the troubleshooting features to collect and analyze

historical, trending and oscillographic data.

Safety and Caution Notices/Disclaimers

This technical document is intended to cover most aspects

associated with the installation, application, operation and

maintenance of the Eaton FP-5000 Protective Relay. It is provided

as a guide for authorized and qualified personnel only in the

selection and application of the FP-5000 Protective Relay. Please

refer to the specific WARNINGS and CAUTIONS that follow

before proceeding. If further information is required by the

purchaser regarding a particular installation, application or

maintenance activity, a Eaton representative should be

contacted. Technical Support is available 24 hours a day by

phoning Eaton Power Management Applications Support at 1

800-809-2772. Option 1 / Option 1.

Product Overview

General Description

The Eaton FP-5000 Protective Relay is a multifunction panel

mounted, microprocessor-based relay, designed for both ANSI

and IEC applications (Figure 1). It is a self-contained device which

operates from either ac or dc control power and provides true

rms sensing of each phase and ground current. Only one relay is

required per 3-phase circuit. Current, voltage and operator

selectable protective functions are integral to each device.The FP

5000 is designed to protect the mains, ties or feeders at any

voltage level. It is primarily applied on medium voltage

distribution circuits up to 69 kV. The FP-5000 monitors several

primary and derived electrical parameters of the system.