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AUMSHIVAY MC 12A - User Manual

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AUMSHIVAY ENGINEERING PRIVATE LIMITED
B-21, Bhan Nagar, Queens Road, Jaipur-302021
Website: www.aumshivay.com, www.omengineering.in
E-mail:admin@aumshivay.com
PAGE. 1
REG. OFFICE:VILLA NO. 60,LATA NAGAR, KALWAR ROAD, JHOTWARA, JAIPUR - 302012
TM
TM
FEEDER PROTECTION RELAY
Feeder Protection Relay (MC12A); Relay MC12A is a single phase, non-directional, over current or Earth fault
relay with one measuring element. The relay can be used for feeder protection in all low voltage, medium voltage and high
voltage sub-stations. 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.
FEEDER PROTECTION RELAY (MC12A)
Item
Feeder Protection Relay
Make
L&T
Model
MC 12A
Specifications
1 phase, non-directional, Over Current or
Earth Fault Relay
Applications
The relay can be used for feeder protection in
all low voltage, medium voltage sub-stations.
The relay has a built in high set facility. DIP
switches are provided on the front panel for
pick up and time delay settings.
Features
Dual CT Rating
Draw out type construction
Micro controller based design
7 types of trip time characteristics available
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Summary

Feeder Protection Relay (MC12 A)

Specifications

Technical specifications for the MC12A relay, including rated current, frequency, and supply.

Applications

Use cases for the MC12A relay in feeder protection across various voltage substations.

Features

Key characteristics of the MC12A relay, such as dual CT rating and microcontroller design.

Feeder Protection Relay (nX Series)

Specifications

Technical specifications for the nX Series relay, including rated current and auxiliary supply.

Applications

Use cases for the nX Series relay in feeder protection across substations.

Technical Specifications

Detailed technical specifications for the nX Series relay, covering various parameters.

Generator Protection Relay (MG30 & MG30-I)

Generator Type

Specifies the type of generators for which the MG30 relay is suitable.

Applications

Use cases for the MG30/MG30-I relay in protecting medium/large synchronous generators.

Features

Key features of the MG30 relay, including voltage control and thermal elements.

Generator Protection Relay (MD-32 G)

Description

Detailed description of the MD32-G relay's function as a differential protection relay.

Technical Specifications

Technical specifications for the MD32-G relay, covering measurements and settings.

Generator Protection Relay (SC14 S)

Description

Description of the SC14S relay as an instantaneous Earth Fault Relay.

Specifications

Technical specifications for the SC14S relay, including ratings and settings.

Applications

Use cases for the SC14S relay in differential protection of generators and transformers.

Technical Specifications

Detailed technical specifications for the SC14S relay, covering operation and contacts.

Motor Protection Relay (MM30-743)

Description

Description of the MM30-743 relay for medium/large induction motors.

Specifications

Technical specifications for the MM30-743 relay, covering measurements and settings.

Motor Protection Relay (MM30)

No-Load Running

Settings and behavior for the no-load running function.

Earth Fault

Settings and behavior for the earth fault protection.

Over-current

Settings and behavior for over-current protection.

Limitation of N° of Starting

Control for the number of motor starts and starting sequence.

Starting Sequence Control

Management of motor starting transitions and sequence.

Auto-setting

Functionality for automatic selection of relay settings.

Motor Protection Relay (MPR300)

Side Labels

Information indicated on labels on the unit's sides.

Settings

Key settings for the MPR300 relay, including trip time characteristics.

Relay Connections

Wiring information for connecting the MPR300 relay.

Applications

Use cases for the MPR300 relay in motor protection.

Motor Protection Relay (MPR300) - Technical Specifications

Protections offered

List of protections provided by the MPR300 relay.

Thermal Over Load Protection

Details on thermal overload protection settings and characteristics.

Earth fault Protection

Details on earth fault protection settings and trip time delay.

Phase Unbalance Protection

Details on phase unbalance protection settings and trip time delay.

Locked rotor protection

Details on locked rotor protection settings and trip time delay.

Under Current protection

Details on under current protection settings and trip time delay.

Operational Indicators

Information on operational indicators (LEDs) for the relay.

Contacts

Details on the relay's output contacts and their ratings.

Auxiliary power supply

Specifications for the auxiliary power supply of the relay.

Features

Key features of the MPR300 relay, including LED indications and test facility.

Motor Protection Relay (MM10)

Side Labels

Information indicated on labels on the unit's sides for MM10 relay.

Display

Description of the MM10 relay's display and indicators.

Motor Protection Relay (MPR300) - Operation & Programming

Setting Display

Procedure for displaying and scrolling through MPR300 relay settings.

Applications

Use cases for the MPR300 relay in motor protection.

Programming Setting

Step-by-step guide for programming MPR300 relay settings.

Features

Key features of the MPR300 relay, including display and programmability.

Transformer Differential Relay (MD32 TM)

Real Time Measurements

Measurements taken by the MD32TM relay.

Programmable Input Quantities

Input quantities that can be programmed for the MD32TM relay.

F87 T: Low-set Phase Differential

Settings for the low-set phase differential element.

Transformer Differential Relay (MD32 TM) - High-set Phase Differential

F87 T: High-set Phase Differential

Settings for the high-set phase differential element.

Digital Inputs

Description of digital inputs for the relay.

Reference Standards

Reference standards and certifications for the relay.

Characteristics

General characteristics of the relay, including current and power.

Features

Key features of the relay, including CT correction and harmonic restraints.

Transformer Instantaneous Earth Fault Relay (SC14 S)

Relay Ratings

Nominal current and frequency ratings for the SC14S relay.

Relay Settings

Settings for the SC14S relay, including current ranges.

Operating Characteristics

Operating characteristics of the SC14S relay, including pick-up and time delay.

Features

Key features like microcontroller design and third harmonic filter.

Voltage & Frequency Relay (MC3 V)

Real Time Measurements

Real time measurements for the MC3V relay.

Programmable Input Quantities

Input quantities that can be programmed for the MC3V relay.

F59 (V>): First OverVoltage Element

Settings for the first overvoltage element.

F59 (V>>): Second OverVoltage Element

Settings for the second overvoltage element.

F27 (V<): First UnderVoltage Element

Settings for the first undervoltage element.

F27 (V<): Second Under Voltage Element

Settings for the second undervoltage element.

81> (f>): Maximum Frequency Element

Settings for the maximum frequency element.

81< (f<): Minimum Frequency Element

Settings for the minimum frequency element.

1-590 (Vo>): Zero Sequence Voltage Control

Settings for zero sequence voltage control.

Voltage & Frequency Relay (MV12)

Rate Voltage (Vn)

Rated voltage for the MV12 relay.

Relay Setting

Settings for the MV12 relay, including pick up voltage and time multiplier.

Operating Characteristics

Operating characteristics of the MV12 relay, including time curves.

Features

Key features of the MV12 relay, such as draw out construction and trip characteristics.

AUMSHIVAY MC 12A Specifications

General IconGeneral
BrandAUMSHIVAY
ModelMC 12A
CategoryRelays
LanguageEnglish