PCT527 precise electricals current transformers price
Electrical Specification
(Customized is available)
| Rated Primary Current | 8A |
| Max Primary Current | 12A |
| Rated Secondary Current | 5mA |
| Accuracy | 0.1~2.0 |
| Electrical Strength | 3000VAC 1mA60s |
| Load Resistance | 10Ω |
| Rated Frequency | 50/60HZ |
What is the role of the current transformer? It is a device that transforms a large current into a second small current, and then displays the information on the second small current according to the secondary display information table, and you can understand the measured current. Carefully observe the current in each phase to see if the three-phase electricity is in equilibrium.
Then there is another point to note is that the secondary side of the current transformer is strictly forbidden to open. Its primary winding resistance is connected in series in the measured route, and the secondary winding resistance is connected in series with the secondary display information table.
Discuss why the current transformer is strictly forbidden to open
When the current transformer is working normally, the magnetic flux potential caused by the secondary side magnetic induction current has a demagnetizing effect, the total magnetic flux of the iron core is small, and the induced electromotive force of the secondary side is also small. According to the calculation of the induced electromotive force formula, E=n*ΔΦ/Δt, E is the induced electromotive force, n is the number of secondary turns, and ΔΦ/Δt is the rate of change of magnetic flux.
| Item | Rated Current(A) | Current Ratio | Accuracy Class | Load Resistance Ω | Frequency Hz | Dimensions (mm) | ||
|---|---|---|---|---|---|---|---|---|
| Click PN For Details | ID | OD | HT | |||||
| PCT215 | 50 | 500~3500:1 | 0.1~2% | 30 | 50/60 | 8.5 | 29 | 13.2 |
| PCT216 | 60 | 500~3500:1 | 0.1~2% | 30 | 50/60 | 8.6 | 29.2 | 13 |
| PCT527 | 20 | 500~3500:1 | 0.1~2% | 40 | 50/60 | 7.6 | 18 | 8 |
| PCT531 | 25 | 500~3500:1 | 0.1~2% | 10 | 50/60 | - | - | 15.5 |
| PCT701 | 60 | 500~3500:1 | 0.1~2% | 20 | 50/60 | 7 | 23.4 | 11 |
| PCT702 | 80 | 500~3500:1 | 0.1~2% | 30 | 50/60 | 8.7 | 26.4 | 17 |
| PCT703 | 130 | 500~3500:1 | 0.1~2% | 50 | 50/60 | 12.8 | 37.2 | 14 |
| PCT704 | 60 | 500~3500:1 | 0.1~2% | 10 | 50/60 | 8 | 24.2 | 11.8 |
| PCT710 | 10 | 500~3500:1 | 0.1~2% | 30 | 50/60 | 8 | 24 | 11.8 |
| PCT801 | 50 | 500~3500:1 | 0.1~2% | 100 | 50/60 | 28 | 45 | 17.2 |
| PCT802 | 100 | 500~3500:1 | 0.1~2% | 40 | 50/60 | 35 | 33.5 | 29.2 |
| PCT822 | 20 | 500~3500:1 | 0.1~2% | 50 | 50/60 | 21 | 31 | 8 |
| PCT831 | 50 | 500~3500:1 | 0.1~2% | 30 | 50/60 | 10.6 | 23.9 | 13.6 |
| PCT832 | 100 | 500~3500:1 | 0.1~2% | 20 | 50/60 | 12.6 | 26.1 | 14.6 |
| PCT842 | 100 | 500~3500:1 | 0.1~2% | 100 | 50/60 | 7.5 | 22 | 17.5 |
| PCT843 | 10 | 500~3500:1 | 0.1~2% | 40 | 50/60 | 18 | 31.5 | 23 |
| PCT901 | 180 | 500~3500:1 | 0.1~2% | 20 | 50/60 | 18.5 | 50 | 20 |