Indoor Current Transformer
Construction and Insulation
ROS series are coil cast with epoxy resin and are encased in a molded case to perform high intensity insulation. It provides excellent protection against moisture and oil, which are associated with low water/chemical absorption, and provides long service life.
Terminals & Sealable Cover
ROS series utilize 7mm diameter cross-hole wiring. It provides protection against shorting and is associated with a terminal cover, which can be sealed as well.
- Excellent insulation due to resin casting.
- Indoor usage.
- Type test certification.
- High level rating factor (RF) capability.
- 100% test before delivery. (Associated with test report)
≦600V, 0.3 Metering accuracy class, 50/60 Hz, Ith = 40/sec.Burdens & R.F Shown in the Table
|Thermal Rating Factor||Window|
|@30℃ Amb.||@55℃ Amb.|
ROS-38A & ROS-66A & ROS-78A
Indoor, Mold Type, Epoxy Reisn
50 / 60 Hz
80 In / 1 Sec
100 A (R0S-38A)
4 / 10 kV
150 ~ 250 A (ROS-66A)
300 ~ 400 A (ROS-78A)
Burden /Accuracy Class
as below list
Burden / Accuracy CL
Approx. Weight (KG)
- Related Products
CIC outdoor revenue current transformer utilizes a special epoxy which is able to withstand the sun's UV radiation. These current transformers have been subjected to a series of strict environment tests in a bid to provide the most stable & reliable quality for tough outdoor circumstances. They have been supplied to the Taiwan Power Company and to Philippine utility companies for many years, and they have earned an excellent reputation. These current transformers provide an accuracy leve of Class 0.2s, 0.2 & 0.3 (15-25VA burden) and are suitable for 12KV~25KV voltage systems. As a result of the excellent partial discharge test results, our AWF Series current transformer is able to provide users with a long service life.
CIC outdoor instrument voltage pole mounted type transformers are designed as a revenue transformer. They are made using a special mixed epoxy material which is able to withstand the suns UV radiation. They have been designed for the outdoor environment where inclement weather may include such problems as salt spray, moisture, ultraviolet radiation, strong winds and a whole host of other things. VPF-15/24 has been in service to the Taiwan Power Company & Philippine Utility companies for many years, and they have earned an excellent reputation in both markets. They provide class 0.2s, 0.2 &0.3 accuracy; 25VA burden, and are suitable for12KV to 24KV voltage systems. Due to the excellent partial discharge test results, you can have full confidence that VPF-12/24 will provide a long service life.
- Download Materials
Includes ODM products, detailed drawings, a quick guide for product lookup by application and voltage, and an introduction to CIC’s current transformers and potential transformers.
How to select, based on application and power system attributes, the primary and secondary currents, burden, accuracy, rated frequency, type (indoor vs. outdoor), insulation material, etc.