The matters during the mounting of current transformer/current transformers will be taken into consideration:

* Don't open secondary circuit when current available in primary.
* Current transformer/Current transformers are produced as a singlephase
* Resistance of current transformer/current transformers is very low, so the secondary winding of current transformer/current transformers should be operated as a short-circuit, when required test operation. Otherwise, this condition causes high voltage and will be dangerous for person.