Larsen & Toubro U-POWER Omega UW-MTX1.0 - User Manual

Copyright © 03/2019 Larsen & Toubro. All Rights Reserved.
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Larsen & Toubro U-POWER Omega UW-MTX1.0 Specifications

General

Brand	Larsen & Toubro
Model	U-POWER Omega UW-MTX1.0
Category	Circuit breakers
Language	English

Summary

Section 1: Receiving Breakers

1.1 Visual Inspection

Inspect carton for damage and verify breaker version/rating against order details.

1.2 Unpacking Breakers

Steps for unpacking fixed/draw-out breakers, removing packing materials and securing brackets.

1.3 Handling Breakers

Safe handling procedures for breakers using lifting equipment or personnel.

1.4 Storage Procedures

Guidelines for storing breakers, including temperature range and stacking.

Section 2: Understanding Breakers

2.1 Breaker Identification

Identify breaker components, type designations, and rating specifications using diagrams.

2.3 Racking-out Procedure

Procedure for safely racking out draw-out breakers from cradle, handling shutter/interlocks.

2.4 Breaker Operation

Steps for operating breakers: charging spring, using ON/OFF buttons.

2.5 Technical Data

Comprehensive technical specifications for breakers: parameters, dimensions, and ratings.

Section 3: Installing Breakers

3.1 Mounting & Door Cut-out

Guidance on mounting breakers in panels and specifications for door cut-outs.

3.2 Termination

Instructions and diagrams for terminating breaker connections, including terminal adapters.

3.3 Loading Breakers in Panel

Step-by-step guide for loading breakers into panels, ensuring correct position and connection.

3.4 Control Circuit Connections

Information on control circuit wiring using SICs and bridges, including diagrams.

External Neutral CT

Installation of Phase Barriers

Section 4: Breaker Accessories

4.1 Cradle Mounted Accessories

Description and installation of accessories mounted on the breaker cradle, e.g., shutters, interlocks.

4.2 Breaker Mounted Accessories

Details on breaker-mounted accessories: auxiliary contacts, shunt releases, operating counters.

Section 5: Protection & Control Units

5.1 Identification of Protection Units

Overview of UW-MTX breaker models and identification features: labels, displays, keys.

5.2 Protection Characteristics

Graphs and settings illustrating breaker protection characteristics like overload and short circuit.

2. Feature List

Section 6: Putting Breakers into Operation

6.1 Re-loading Breakers into Panel

Procedure for re-loading breakers into the panel, ensuring correct connection and position.

6.2 Checking ON-OFF Operation

Verify breaker ON-OFF operation: charging spring, using ON/OFF buttons.

6.3 Testing Control Circuits & Interlocks

Guidelines for testing control circuits and interlocks, including checks for accessories and faults.

6.4 Configuring P&C Unit

Instructions for configuring P&C units: overload, short circuit, and system settings.

6.5 Trip Simulation of P&C Unit

Details on using the Trip Simulation Kit for testing breaker P&C units and their features.

6.6 Connected Position

Procedure for connecting ACB's in the connected position, checking tightness and LED indications.

6.7 Securing your Breaker

Security features for breakers: padlocking buttons, covers, and shutters.

Section 7: Maintenance & Operations

7.1 Maintenance Schedule & Operations

Routine and specific maintenance tasks for Omega ACB Series: checks, replacements, and greasing.

7.2 Accessories and Spares

List of available accessories and spare parts for breakers: component names and cat numbers.

Section 8: Useful Hints