metering & protection systems -...

P R O D U C T C A T A L O G

Metering & Protection SystemsC o m p l e t e S o l u t i o n s f o r I n d u s t r i e s a n d U t i l i t i e s

Webs i te : http : / / w w w. lnteb g .co m

Larsen & Toubro (L&T) is a technology driven engineering company, and one of the largest companies in India’s private sector. It has additional interests in manufacturing, services and Information Technology.

A strong, customer-focused approach and the constant quest for top-class quality have enabled the Company to attain and sustain leadership in its major lines of business for over seven decades.

We manufacture and market a comprehensive range of high quality electronic energy meters, metering solutions and numerical relaysfor utilities, industries and commercial establishments.

L&T products are designed and developedin-house and conform to relevant Indian and international standards. The products are manufactured at L&T’s Mysore Campus, which is equipped with the state-of-the-art testing facilities.

L&T through its emphasis on innovation, technology and quality is committed to supporting its customers with accurate, reliable and easy to use electronic metering and protection solutions.

T H E R I G H T M E A S U R E

®L&T Meters

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With over a decade of experience in design, manufacturing and supply of electronic electricity meters to Indian utilities, L&T today is a leading player in the electricity metering segment in India.

L&T entered the market in the early 90s on the strength of its indigenously designed single phase and poly-phase meters.Since then, a strong emphasis on design and testing coupled with the ability to meet utilities’ express and implied needs has resulted in development of meters that are accurate, easy to read and more importantly reliable on the Indian distribution network.

L&T’s meters and metering solutions have found wide acceptance in India from all its major customers including industries, private utilities, electricity boards, transmission companies and generation companies.

L&T also exports meters to select countries in Africa and Asia, where the products have gained wide acceptance.

RESIDENTIALMETERING

L&T Metering provides accurate andreliable solutions for residentialmetering.

This compact single phase meter fits snugly into any meter

box. The bright back-lit display ensures ease of reading.

Class 1 accuracy as per IS and IEC standards

Forward energy recording irrespective of current direction

Optical port/RS 232 port (optional)

Indication for power on, current reversal and ELT

Reset backups and TOD facility

High surge withstand capability

Anti-tamper features

174 H x 141 B x 74 D mm

Features

Dimensions

EM101+ Single Phase Meter

02 L & T M E T E R S T H E R I G H T M E A S U R E

EM301 Three Phase Meter The superiority of this meter lies in its ability to work

normally under reverse current, unbalance voltage and

current, reversed phase sequence and voltage variation.

Class 1 accuracy

LEDs indicating presence of each phase

Withstands 440V between phase and neutral

Maintains accuracy under current reversal conditions

High surge withstand capability up to 8kV

Polycarbonate enclosure


172 H X 180.5 B X 76 D mm

Features

Dimensions

COMMERCIAL &INDUSTRIAL METERING

The trusted choice for industrialand commercial metering, L&TMetering offers flexible productswith a wide range of features.

ER300P is a tri-vector meter which integrates several functions and replaces various equipment for metering energy parameters. This meter is used for commercial metering and for metering of small industrial loads.The meter has advanced data recording capabilities.

Class 1.0 accuracy as per revelant IS and IEC Standards

10-40, 10-60, 20-100 A current rating

Upto 3 Maximum Demand registers

Load Survey


Self diagnostic capability

Optical port/RS 232 (optional)

327 H x 187 B x 120 D mm

Features

Dimensions

ER300P LT Whole Current Meter

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ER300P This meter is designed for metering of HT/LT consumers feeders. The meter has advanced data and tamper recording capabilities and is provided with communication ports. Software is available for data collection, load survey analysis and energy management applications. The meter can be interfaced to a variety of communication devices.

Class 0.2s,0.5s,1.0 as per relevant IS and IEC Standards

1A and 5A current rating

3Phase 4 Wire/3Phase 3 Wire system


Self diagnostic capability

Multiple tariff feature

Upto 3 Maximum Demand registers

Load Survey features

Upto 12 reset backups

Optical port/RS 232/RS485 (optional)

327 H x 187 B x 104 D mm

Features

Dimensions

CT Operated Meter

UTILITYMETERING

L&T’s high accuracy meters are used by manyof the largest utilities for measurement of bulkinter-utility power flow.

ER300P ABT Meter

This single phase meter designed for DT metering offers

higher accuracy and better features to suit the customer’s

requirements.

Class 0.5s accuracy for active and class1.0 accuracy for

reactive as per IS & IEC standards

CT operated meter with 5A(Ib) to 10A(Imax.)

Pulse LED output

Indication for power on, current reversal,

ELT and neutral missing

Load Survey, reset back ups and TOD features

Optical port

174 H X 141 B X 85 D mm

Features

Dimensions

EM101+ Single Phase DT Meter


L&T’s high accuracy ABT meter provides a flexible solution for

energy monitoring and billing bulk inter utility power flows.

This meter is the preferred choice for major utilities in India.

Class 0.2s accuracy

3 Phase 4 Wire

Conforms to IEC and IS standards

15 minute block average for frequency and energy

Frequency coding for billing

Separate reactive energy registers linked to

supply voltage

Midnight storage of energies

Load Survey

Optical port/RS 485 communication (optional)

327 H x 167 B x 104 D mm

Features

Dimensions

ENERGY MANAGEMENTSYSTEMS

L&T Metering offers flush mountversions of its Trivector meter,which can be used in panels fornon tariff energy measurementand for load control.

This meter uses DSP technology to measure both instantaneous and cumulative values in an electrical circuit. The parameters are shown on a 3-line display that can be scrolled through using push buttons.

Class 0.5s and class 1.0 accuracy as per IS and IEC standards

LCD display with backlight

CT/PT programming

LT/HT models

Current ratings of 1A and 5A

RS 485 communication (optional)

96 L x 96 B x 112.5 D mm

Features

Dimensions

Intelligent Panel Meter

This panel meter measures voltage, current and kWh energy in a 3 phase 4 wire system. The meter has an LCD display with backlight, thus enabling ease of reading.

Class 1 accuracy

AC/DC auxiliary supply

RS 485 communication

Password protected CT/PT value programming

96 L x 96 B x 105 D mm

Features

Dimensions

3P4W kWh Meterwith RS 485

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Dual Source Meter

QUASAR™

NOVA™

GEMiNi This panel meter is designed for dual source energy measurement. It serves as a replacement for two separate energy meters, necessary for metering applications with dual energy sources.

LCD display

Class 1 accuracy

Separate registers available for measurement of utility power and generator power

AC/DC auxiliary supply


Password protected CT/PT value programming

96 L x 96 B x 105 D mm

Features

Dimensions


L&T Metering’s panel metersfind wide application in a varietyof switch-boards and panelsbecause of their flexibility andease of use.

This counter meter is used in control panels to measure kWh energy. This product is available in both LT and HT models.

Class 1 accuracy

kWh measurement

1A and 5A current rating

Pulse LED output

Terminal covers with sealing provision

96 L x 96 B x 100 D mm

Features

Dimensions

®ACRUX Electronic Energy Meter

The VEGA range consists of panel meters which measure electrical parameters such as voltage, current and energy. These meters can be used for both LT and HT applications. This range includes:

• Single function meters-voltmeters, ammeters, frequency meters

• VAF meters: display voltage, current, and frequency on a 3-line display

• Multifunction meters: display energies, demands and import/export values. They are available in 3 variants:Model A: Displays voltages, currents, power and energyModel B: Model A + neutral current + demand parametersModel C: Model B + import/export

LED display

Class 1 accuracy

Password protected programming

Current ratings of 1A and 5A

RS 485 communication (select models only)

Relays for fault tripping (optional)

Single function meters : 96 L x 96 B x 45 D mm

VAF meter : 96 L x 96 B x 45 D mm

Multifunction meters : 96 L x 96 B x 65 D mm

Features

Dimensions

Digital Panel MeterVEGA™



mi-Energy is a DIN-rail mounted energy meter. Available in

1- and 3-phase models, these meters are useful in monitoring

energy consumption in distribution boards and cabinets. With

an additional Wi-Fi module, meter data can be easily viewed

on laptops and smart phones.

LCD display

Class 2 accuracy

Displays day, week, month and push-to-push consumption

Optical communication port

Reverse current indication (for 3 phase models only)

3 phase: 125 L x 83 B x 63.5 D mm

1 phase: 36 L x 83 B x 66.73 D mm

Features

Dimensions

mi-Energy™ DIN Rail Energy Meter

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Reactive power manager is designed for automatic control of

capacitor banks in 3 phase 4 wire LT distribution systems.

The relay maintains the system power factor at a set value,

under fluctuating load conditions, by connecting or

disconnecting capacitor banks to the 415V bus.

Automatic C/K ratio selection

Power Factor correction up to 1% of rated current

8/14 capacitor banks

Programmable CT ratio and capacitor bank values

Voltage, current and reactive power display

144 H X 144 B X 110 D mm

Features

Dimensions

Reactive Power ManagerRPM 8/14

L&T provides compact and economical metering solutionsto monitor loads for betterenergy management.

METERINGSOLUTIONS

L&T has ready-to-use AMR solutions fordisplay, analysis and reporting of meterdata using a simple, easy-to-understanduser interface.

VinPlus is the application software used with tariff meters.

VinPlus supports convenient collection of energy data either

directly from remote TVM or from HHU’s.

Energy data collected from TVM or HHU is categorized into

instantaneous values, cumulative energies, reset back-ups,

Load survey data and Tamper records.

User is given option to collect full data as well as specific data

such as Current Bill, Previous Bill, Tamper Data, Load Survey

or Instantaneous values from Meter. The collected data can

be viewed in the form of reports.

VinPlus Data Collection and Analysis Tool

PRIMAS is a Data Acquisition and Energy Audit Software. The

software acquires and manages vast data collected from

meters installed at various levels in the distribution network.

Logs data from the TVMs connected at the various levels in

the distribution network

Segregates the collected data and shows it in different views

such as feeder view and station view

Generates multiple reports required for energy audit

Robust database and user friendly interface

Features

PRIMAS Data Acquisition and EnergyAudit Software


METERINGSOLUTIONS

L&T provides comprehensive end-to-endsolution for data logging andremote reading of meters.

SANGRAHA is a meter data acquisition software for

collection of data from energy meters. It is a web application

which hosts MIOS-compliant APIs to collect meter data and

convert the raw data into common document format files.

Data collection is independent of meter make, type or

manufacturer (subject to availability of respective

manufacturer’s MIOS APIs.)

Data is collected through different channels such as GSM,

PSTN, GPRS and MRI devices. MODBUS data can also be

collected for a defined frequency / time-interval.

Schedules can be configured for automatic collection

and based on multiple parameters as inputs. The reports and

logs in the application depict data acquisition status and

allow for monitoring. Data integrity is maintained at 3 levels.

SANGRAHA Meter Data AcquisitionSystem

CMG 300 GSM/GPRS Modem CMG 300 is a compact real time telemetric data collection

system. It supports both GSM and GPRS technologies.

Can be retrofitted to existing installed meters

Quick and easy installation

Power drawn from meter’s potential terminals

Rugged power supply

Sealable SIM card holder

Dual Band GSM 900/1800MHz

Supports Data and SMS

Maximum power output: 2W (900MHz) and 1W (1800MHz)

AT command set (GSM 07.05, GSM 07.007 and proprietary)

3V SIM interface

Hardware GPRS Class 10 capable

RS 232 port via 9 pin D sub-connector

Burden: 3.6VA

Optical cable for communication with meter

5 dB antenna

142 L X 128 B X 44.5 H mm

Features

Optional Accessories

Dimensions

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T R U L Y R E L I A B L E

®L&T Relays

10 L & T R E L A Y S T H E R I G H T M E A S U R E

L&T is a leading Indian manufacturer of high quality numerical relays. L&T focuses on providing cost effective solutions that adequately meet the need of its industrial customers. L&T is the popular choice for large industries and panel manufacturers in India.

L&T Provides:

lFeeder Protection Relays

lGenerator Protection Relays

lMotor Protection Relays

lTransformer Protection Relays

lVoltage and Frequency Relays

lPower Factor Controllers

lSynchronizing and Load Sharing Relays

lMonitoring, Control and Supervision Relays

PROTECTIVE RELAYS

MC31A is a three phase over current and Earth fault relay with 4 measuring elements. This relay can be used for feeder protection in all low voltage, medium voltage and high voltage sub-stations. The relay has a 4 digit seven segment LED display to read on line values, switch on values, last trip data and settings. It provides a choice of 7 trip time characteristics.

50N, 51N

Low Set O/C and Low Set earth fault

Time characteristics NI [1.3s, 3s], VI, EI andDefinite time [1S, 10S, 100S]

1A/ 5A CT secondary (Field selectable)

Last five trip data records

Self diagnostics

Front bezel 158 H x 136 B, Panel cutout 142 H x 113BDepth 224 mm

Features

Dimensions

MC31A Three Phase Over Currentand Earth Fault Relay

MC61A is a three phase over current and Earth fault relay with 4 measuring elements. The relay has built in high set (instantaneous trip) protection, for both over current and earth fault elements. The relay can be used for feeder protection in all low voltage, medium voltage and high voltage sub-stations. The relay has a 4 digit seven segment LED display to read on line values, switch on values, last trip data and settings. It provides choice of 7 trip time characteristics.

50/51, 50N/51N


High Set O/C and High Set earth fault

Time characteristics NI, VI, EI and Definite time [1s, 10s, 100s]

Self diagnostics

Front bezel 158 H x 136 B, Panel cutout 142 H x 113 B

Depth 224 mm

Features

Dimensions

MC61A Three Phase Over Currentand Earth Fault Relay

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MC61C is a three phase over current and Earth fault relay

with 4 measuring elements. The relay has built in high set

(instantaneous trip) protection, for both over current and

earthfault elements. The relay has an RS485 port to link it to

SCADA system.

50/51, 50N/51N


High Set O/C and High Set earth fault

Time characteristics NI, VI, EI or Definite time

Self diagnostics


Auto doubling of High Set

Breaker Control

Front Bezel 158 H x 136 B, Panel Cutout 142 H x 113 B

Depth 224 mm

Features

Dimensions

MC61C Three Phase Over CurrentEarth and Fault Relay


SC14S is a self-powered, single-phase, non-directional, Earth

fault relay with one measuring element. The relay can be

used for differential protection of generators, restricted

earth fault applications of generators and transformers in all

low voltage, medium voltage and high voltage sub-stations.

87N/64 R

Self powered

Time characteristics – instantaneous and time delayed

CT rating 1A/5A

2 C/O contacts (Self/Reset)


Depth 224 mm

Features

Dimensions

SC14S Single Element Instanta-neous Earth Fault Relay

PROTECTIVE RELAYS

PROTECTIVE RELAYS

ME12A is a non-directional, earth fault relay with one

measuring element. The relay can be used for feeder

protection in all low voltage, medium voltage and high

voltage substations. The relay has a built in high set facility.

DIP switches are provided on the front panel for pick up and

time delay settings. User has a choice of 7 trip time

characteristics.

50N/51N

Low Set sensitive E/F and High Set sensitive E/F

Time characteristics NI, EI, VI, Definite Time

Harmonic rejection

2 C/O contacts (S/R)


Depth 224 mm

Features

Dimensions

ME12A Sensitive Earth Fault Relay

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MV12A is suitable for over voltage/under voltage protection

schemes in LV, MV and HV power distribution systems. It is

also suitable for over voltage protection of AC circuits,

capacitors, machines such as generators, synchronous

motors and under voltage protection of AC circuits,

induction motors and automatic change over schemes.

Inverse Time and Definite Time characteristics

Built -in timer

2 C/O contacts

PT input 110V/240 V (site selectable)


Depth 224 mm

Features

Dimensions

MV12A Single Phase Over/UnderVoltage Relay

MRP11 can be used for protection of generators from

reverse power conditions or in grid islanding systems for

detecting mains failure or prevention of power flow from

small generators to grid.

32

PT Input VN 110 V, 240 V

CT Input 1A/5A

1 N/O + 1 C/0 contacts


Depth 224 mm

Features

Dimensions

MRP11 Reverse Power Relay


PROTECTIVE RELAYS

MPR300 is a digital motor protection relay, which can be

used to protect 3 phase, 415 V AC, 50 Hz induction motors up

to 88 A rating. The heart of MPR300 is a micro controller

circuit supported by built in CTs for measurement.

Thermal overload protection (49)

Locked rotor protection (51LR)

Negative sequence protection (46)

Earth fault protection (51N)

Undercurrent protection (37)

Single phasing and no load running (46)

Built -in CTs

85 H X 70 B X 106 D mm

Features

Dimensions

MPR300 Motor Protection Relay

TESTING FACILITIES

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Test setups

Dry heat chamber

Rain chamber

Climatic chamber/reliability lab

Dust chamber

Electrostatic discharge simulator

Electrical fast transient simulator

Lighting surge simulator

Damped oscillator simulator

Conducted wave simulator

Vibration shaker system

AC voltage tester

Glow wire test

Insulation resistance tester

Mechanical shock simulator

Impulse voltage test

Radio interference test

Radiated susceptibility test

CT/PT tester

MMD calibrator

Magnetic test

Calibration test bench 0.01class accuracy

L&T is equipped with the latest test equipment including

environmental test chambers, comprehensive EMI/EMC

setups and high - energy lightning surge test facilities. This

lab has been accredited by NABL for calibration. Here our

products are constantly tested for function, accuracy,

insulation, response to climatic conditions, EMI/EMC and

mechanical requirements. Incoming inspection of

electrical and mechanical components, field failure

analysis, calibration of in-house equipment, outgoing

inspection and validation of meter software & base

computer software are done at the Lab.

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OUR COMMITMENT TO QUALITY

Deliver products and services meeting orexceeding customer requirements and expectations

while improving value to stakeholders

- From the Quality Policy of L&T Electrical & Automation ”“

We at L&T Metering and Protection Systems are

committed to providing our customers with the highest

quality products and services. All L&T MPS products

conform to relevant Indian and international standards.

INTERNATIONAL SALES

INDIA - SALES OFFICES

Northern Region

MPS International Sales

Metering & Protection Systems

Larsen & Toubro Limited

KIADB Industrial Area

Hebbal – Hootagalli

Mysore–570 018

Ph. No. +91 821 2405382

Fax No. +91 821 2402172

Delhi



32, Shivaji Marg

P.O. Box 6223

New Delhi–110 015

Ph. No. (011) 41419684

Fax No. (011) 41419600

Chandigarh



SCO 32

Sector 26-D

Madhya Marg

P.O. Box 14

Chandigarh–160 019

Ph. No. (0172) 4646851

Fax No. (0172) 4646802

Jaipur



D-24, Prithvi Raj Road

C-Scheme

P.O. Box 110

Jaipur–302 001

Ph. No. (0141) 2385920

LucknowMetering & Protection SystemsLarsen & Toubro LimitedA-28 Indira NagarFaizabad Road, Lucknow–226016Ph. No. (0522) 2311918

MumbaiMetering & Protection SystemsNorth Wing, Level-2, Gate No. 7Larsen & Toubro LimitedPowai (E), Mumbai–400 072Ph. No. (022) 67053035Fax No. (022) 67525858

VadodaraMetering & Protection SystemsLarsen & Toubro LimitedRadhadaya ComplexNear Charotar SocietyOld Padra Road, Baroda–390 015Ph. No. (0265) 2330765Fax No. (0265) 2336184

KolkataMetering & Protection SystemsLarsen & Toubro Limited3-B, Shakespeare SaraniP.O. Box 619, Kolkata–700 071Ph. No. (033) 44002450Fax. No. (033) 22823796

GuwahatiMetering & Protection SystemsLarsen & Toubro LimitedMilanpur RoadBamuni MaidanGuwahati–781 021Ph. No. (0361) 2550565

Western Region

Eastern Region

Southern Region

DIVISIONAL OFFICE

Bangalore



No. 38

Cubbon Road

Post Box No. 5098

Bangalore–560 001

Ph. No. (080) 25020341

Fax No. (080) 25596397

Chennai



Post Bag 5247

10, Club House Road

Anna Salai

Chennai–600 002

Ph. No. (044) 28462055

Fax No. (044) 28462102

Hyderabad



5-10-173

Fateh Maidan Road

P.O. Box 112

Hyderabad–500 004

Ph. No. (040) 66720318

Fax No. (040) 23242356

MPS Sales & Marketing




Hebbal–Hootagalli

Mysore–570 018

Ph. No. (0821) 2405437

Fax No. (0821) 2402172

Product improvement is a continuous process. The information contained in this document is subject to change. Please contact any of ouroffices for more details on our products and services.

© 2011 L&T Electrical and Automation.




Hebbal - Hootagalli

Mysore - 570 018

Ph. No. (0821) 2405467

Fax No. (0821) 2402172

e-mail: [email protected]

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