ABB 424K1105 25V Synchronism Check Relay

Overview

The ABB 424K1105 25V Synchronism Check Relay is specifically designed to monitor synchronization in industrial power systems. It provides advanced features, allowing seamless operation even when either the line or bus is dead. This relay offers high flexibility, reliability, and durability, making it an ideal choice for critical applications that require precise synchronization control.

Key Features

Flexible Settings: Customize the relay’s operation to suit different system requirements.
Low Burden: Operates efficiently with minimal power consumption.
Continuously Rated Coils: Ensures long-term, reliable operation without overheating.
Seismic Resistance: Withstands up to 6g ZPA vibrations, ensuring performance in extreme conditions.
Built-in Test Function: Makes diagnostics easy and effective for quick troubleshooting.
Drawout Construction: Allows for easy maintenance and replacement of components.
2-Year Warranty: Provides added assurance of reliability and quality.
UL Recognized: Meets rigorous safety and performance standards.

Technical Specifications

Parameter	Details
Input Voltage	120 Vac, 50/60 Hz nominal, 140 Vac max continuous
Burden	2 VA, 1.0 Power Factor
Output	2 Form C Contacts
Output Rating	125 Vdc: 30A closing, 5A continuous, 1A opening (resistive), 0.3A opening (inductive)
Magnitude of Vector Difference Voltage	Adjustable from 0 to 80 volts
Time Delay	Pickup: 0.1–1.5 seconds; Dropout: 1 cycle
Operating Temperature	-20°C to +70°C
Seismic Capability	More than 6g ZPA, biaxial, multifrequency vibration
Transient Immunity	2500V, 1 MHz bursts, continuous at 400 Hz
Dead Bus, Dead Line Levels	Adjustable 0–120V, factory set at 30V
Dielectric Strength	2000 Vac RMS, 60 seconds, all circuits to ground

Applications

The ABB 424K1105 Synchronism Check Relay is essential for applications requiring synchronization between a line and bus, such as in grid connections and generator synchronization. It ensures safe and efficient power transfer, making it ideal for use in high-reliability systems.