Protection relays have different functions. They are often made up of several modules, each of which performs a specific function. In this guide, we will distinguish three types of functions: protection against abnormal variations in the main supply, protection against leakage currents, and protection against overloads.
Protection against abnormal grid variations
Abnormal voltage, current, and frequency variations can lead to problematic phenomena. These...
three-phase motor pump protection relay
SubMonitor
... 3-phase pumps with horsepower ratings between 3 and 200 hp. Current, voltage and motor temperature are monitored using three integrated current transformers. A digital display provides current and voltage ...
DirectIndustry RFQ: Free quotation comparison tool
Receive and compare quotations for free
Describe your project
We select
the best suppliers
the best suppliers
Compare quotations and complete your purchase
Remove all
Compare up to 10 products