KCEU142 ALSTOM Digital Protection Relay Module
ALSTOM KCEU142 multifunctional digital protection relay, spare protection equipment for power plant and substation power system monitoring, fault identification and tripping control.
Product Overview
- Part No: KCEU142
- Brand: ALSTOM
Category: Digital Protection RelayKCEU142 is a digital protection relay manufactured by ALSTOM for power system secondary protection. The device receives current and voltage signals from CT and VT, executes configurable protection algorithms to detect electrical faults including overcurrent and overload. It is equipped with local LCD display, operating buttons and LED status indicators, supporting parameter configuration, real-time electrical quantity monitoring, fault event recording, alarm and trip output. With standard secondary wiring terminals, it can realize independent protection for power distribution equipment. It is an important spare part for maintenance and overhaul of protection cabinets in power plants and substations.
Core Features
- Integrates multiple protection functions, protection logic configurable through front panel
- Built-in fault event recording function to support post-fault analysis
- Onboard LCD screen for real-time voltage, current data and protection parameter viewing
- LED indicators for health status, alarm and trip status visualization
- Dust-proof front panel design, suitable for indoor cabinet installation
- Complete hardware self-diagnosis function for automatic abnormality warning
- Optimized EMC circuit design, stable operation under strong electromagnetic interference environment
Passed high voltage insulation test and long-term thermal aging reliability test
Technical Specifications
- Auxiliary Power Supply: 110V / 220V AC/DC
- Operating Temperature: -20°C ~ +70°C
- Storage Temperature: -40°C ~ +85°C
- Installation Mode: Panel mounting inside control cabinet
Front Protection Class: IP40
Compatibility & Application
- Compatible with ALSTOM traditional power protection secondary circuit system
- Widely used in thermal power plants, hydropower plants, captive power stations and distribution substations
- Applied for feeder protection, auxiliary motor protection and distribution circuit fault monitoring











