Product Specifications
Product Description
MR Current Transformers:
-Primary current: 30A-5000A
Secondary current: 5A, 1A
Standard approval: BS7626, IEC185
Maximum voltage: 0. 72KV
Frequency: 50-60Hz
Rated load: 5VA-15VA
Class: 1. 0, 3. 0
Short-time thermal current: Ith=60*Ih
Rated security coefficient: FS<5
MR Series:
Protective current transformers are required to operate over a range of current many times the circuit rating and is frequently subjected to conditions greatly exceeding those which it would be subjected to as a measuring current transformer. When a current transformer is used to energise a protective relay, it must manintain its characteristic ratio up to some multiple ofits rated current. This multiple, may be 5, 10, 20 or some even higher value and is know as the ccuracy Limit Factor? (ALF). Therefore, the selection of Proterctive Current Transformers in relation to accuracy class and ALF require a close examination of relay characteristic and circuit conditions which inclues the relay burden and the pilot wire lead burden.
We are one of the leading manufacturers electric products. Located in Wenzhou China, where is the largest base of low voltage electric appliance.
We manufacture thousands model of high quality electric products yearly. Mainly include:
1. Low voltage electric apparatus: circuit breaker, AC contactor, relay and so on.
2. High Voltage electric apparatus: Fuse, lighting arrester and so on.
3. Meters and Instruments: many kinds of meter, Gauges, Stabilizer and so on.
4. Electrical Accessories: Sockets, plug, and so on.
5. Electric Tools: crimping Tools, tester pen, soldering iron and so on.
6. Lighting: Energy Saving Lamp, Halogen Fitting and so on.
We look forward to serving you using our skills, experience and engineering knowledge. We guarantee you the best of our services!
