Electric Power Generation

Cat XLM Switchgear

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XLM switchgear is used when the generators are paralleled with a normal utility (or multiple utility) power source(s). SLM switchgear allows closed transition, softloading and unloading from utility and peak shaving capability where generators operate continuously in parallel with the utility.
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Overview

Caterpillar offers standard Switchgear products, which can support a wide variety of applications, or provide a custom designed system to meet your specific project needs. The Emergency Transfer and Load management (XLM) product supports transfer between the utility source and generator bus and allows for sustained parallel operation with the utility for load management applications. Caterpillar Standard Switchgear products provide a solution able to combine all elements of monitoring and control for Caterpillar generator sets in a single-source package. Caterpillar also designs and manufacturers custom switchgear to meet specific customer requirements and functionality.

Technical Summary

Units:
Configuration Configurable PLC based switchgear capable of controlling and monitoring multiple generator sets, tie, utility and load breakers for utility paralleling applications Configurable PLC based switchgear capable of controlling and monitoring multiple generator sets, tie, utility and load breakers for utility paralleling applications Less
Modes of Operation Emergency Standby, Utility Import/Export, Peak shaving, and base load operations with redundant controls and components. Closed transition to/from generator power Emergency Standby, Utility Import/Export, Peak shaving, and base load operations with redundant controls and components. Closed transition to/from generator power Less
Application LV and MV ( 208V - 38 kV LV and MV ( 208V - 38 kV Less

Generator Protective Devices

ANSI Protective Devices 15/25, 27/59, 81 O/U, 32, 40, 50, 51 15/25, 27/59, 81 O/U, 32, 40, 50, 51 Less

Utility Protective Devices

ANSI Protective Devices 15/25, 27/59, 81 O/U, 32, 40, 47, 50, 51, 86 15/25, 27/59, 81 O/U, 32, 40, 47, 50, 51, 86 Less

Environmental Parameters

Certifications IBS, CBC, UBC & OSHPD Certified IBS, CBC, UBC & OSHPD Certified Less
Control Panel Enclosure NEMA 1 or NEMA 3R, Freestanding Construction NEMA 1 or NEMA 3R, Freestanding Construction Less
Operating Temperature 0 degrees to 50 degrees C 0 degrees to 50 degrees C Less
Storage Temperature -20 degrees C to +60 degrees C -20 degrees C to +60 degrees C Less
Low Voltage Standards NEMA SG-5, CSA, ANSI C37.51, ANSI C37.20.1, UL 1558 or UL 891, NFPA 110, NFPA 99 and NFPA 70 NEMA SG-5, CSA, ANSI C37.51, ANSI C37.20.1, UL 1558 or UL 891, NFPA 110, NFPA 99 and NFPA 70 Less
Medium Voltage Standards NEMA SG-5, ANSI / IEEE C37.20.2, CSA-C22.2 No. 31-M89, EEMAC G8-3.2, NFPA 70, NFPA 99 and NFPA 1110 NEMA SG-5, ANSI / IEEE C37.20.2, CSA-C22.2 No. 31-M89, EEMAC G8-3.2, NFPA 70, NFPA 99 and NFPA 1110 Less

XLM Switchgear

  • High Speed Supervisory Network
  • Automatic Start/Stop
  • Automatic “Dead Bus” Coordination
  • Automatic Power Factor Control when in Parallel with Utility Power
  • Programmable Load Shed / Load Add Functions
  • Networked Engine Communications
  • Generator & Utility Protection
  • Engine Tuning
  • Mode Selection
  • Selectable Auto/ Manual Control
  • Password Protection for Protective Settings and Setup
  • Load/No Load Test
  • Touch Screen (HMI) Display
  • NFPA 99/110 Compliant Alarm
  • Annunciation with Audible Horn
  • Engine Control mimic Screen with gauges for RPM, DC Battery Voltage, Oil Pressure, Engine Coolant temperature, Engine Hours, Number of starts

Cat XLM Switchgear Standard Equipment

Generator Demand Priority Control
  • Automatically match the on-line generator capacity to the loads, and avoid unnecessary operation of generator sets.

Cat XLM Switchgear Optional Equipment

Data Table Interface
  • Accommodates interface with a building management system for monitoring all system parameters via Modbus RTU or TCP

Supplemental Hardware Synchronization check relay (ANSI 25 Device)
  • Provides additional discrete synchronization protection

Remote Power Monitoring System
  • To monitor breaker status, alarms, metering and other operating parameters

Why Choose Cat® Electric Power?

Caterpillar offers a comprehensive variety of electric power systems, customised to fit your needs. Our specialised systems deliver high power and performance in industries across the globe. With Caterpillar, you get outstanding manufacturing quality, expert support, and the essential tools and applications to complete any project.

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