The ISK721 comprehensive protection terminal is suitable for feeder line protection in 3~10kV substations and distribution stations of 35kV and below. It can be flexibly configured as a line protection and control device or a transformer protection and control device based on the application scenario, offering advantages such as convenient installation and wiring, simple commissioning, and high reliability.

Main Functions and Structural Features

Overcurrent protection, inverse time overcurrent protection, overcurrent acceleration protection, reclosing, zero-sequence overcurrent protection

Low-frequency load shedding, voltage loss protection, overload protection, non-electrical quantity protection, low-voltage load shedding protection

Wide application range: Features measurement, protection, and four-channel non-electrical quantity protection functions, suitable for most application scenarios

Stable and reliable hardware and software: Based on stable hardware and software architecture and design, ensuring reliable and smooth operation

Convenient commissioning and maintenance: User-friendly human-machine interaction interface, allowing on-site access to telemetry, remote signaling, event records, and other device information

Low device cost: Low-cost device with miniaturized and modular design, meeting low-cost investment needs

Installation methods: Two chassis ear installation options—front installation and rear installation