ALH-0.66 I SERIES TRANSFORMER
ALH-0.66 I series current transformers have novel design, advanced compensation method, excellent process technology, safe and reliable performance, small and aesthetic appearance, as well as complete varieties. They are normally used for control, protection and measurement.
The enclosure is made of high-strength PC material with totally-enclosed structure and being compatible with square and round holes. Both cables and bus bars can pass through it.
Internal iron core adopts high-quality silicon steel sheet;
In conformance with GB0840.2-2014;
Pass the National Metrology Accreditation;
Secondary current is divided into 5A and 1A;
| Rated working voltage (Un) | AC660V |
|---|---|
| Rated frequency | 50～60Hz |
| Rated continuous thermal current (Icth) | 1.2 x Ipn |
| Rated short thermal current (Ith) | 60x Ipn (1sec.) |
| Power frequency withstand voltage | 3kV (1min, 50Hz; between the enclosure and secondary terminal) |
| Insulation class | E |
| Type of wiring terminal | screw pressing sheet fastening type (thread is M4) |
| Operating torque | tightening torque 0.8～1.2N.m, max. bearing torque 2.4N.m; |
| Protection class | IP00 for terminal and IP40 for enclosure; |
| Altitude of installation place | ≤ 3,000m |