WESTINGHOUSE OVERCURRENT PROTECTION RELAY 1875267A

Description:

The Westinghouse 1875267A is a Type CO-8 electromechanical overcurrent protection relay designed to provide inverse-time overcurrent protection for electrical power distribution systems. The relay monitors current levels through connected current transformers and initiates a trip signal when current exceeds predetermined settings. It is commonly used for feeder, transformer, motor, and distribution circuit protection in substations, switchgear, and industrial power systems. The CO-8 relay features adjustable pickup settings and inverse-time characteristics to provide selective coordination with other protective devices.

Applications:

The Westinghouse 1875267A overcurrent relay is commonly installed in utility substations, industrial plants, power generation facilities, switchgear lineups, and electrical distribution systems. It provides protection for feeders, transformers, motors, generators, and distribution circuits by detecting overload and fault conditions and initiating circuit breaker tripping when required.

Technical Specifications:

• Manufacturer: Westinghouse Electric Corporation
• Part Number: 1875267A
• Product Type: Overcurrent Protection Relay
• Relay Type: CO-8 Electromechanical Relay
• Protection Function: Inverse-Time Overcurrent Protection
• Current Range: 0.2–2A / 4–12A
• Input Type: Current Transformer (CT) Operated
• Operating Principle: Induction Disc Electromechanical Design
• Function: Overload and fault current detection
• Application: Feeder, transformer, motor, and generator protection
• Mounting Type: Panel Mounted
• Installation Type: Protective relay assembly
• System Compatibility: Utility and industrial power systems
• Intended Use: Circuit breaker trip initiation during overcurrent conditions
• Operating Environment: Industrial, commercial, and utility applications
• Performance Feature: Adjustable inverse-time characteristics for selective system coordination

Common Replacements:

• ABB CRP9 Overcurrent Relay
• Siemens 7SJ80 Protection Relay
• Schneider Electric Sepam S40 Protection Relay