Linear Couplers ZC = 2  – 20  - typical coil impedance
{"Image DocumentName": "Linear Couplers ZC = 2 \uf057 \u2013 20 \uf057 - typical coil impedance", "Image ImageDescription": "(5V per 1000Amps => 60Hz ) If = 8000 A. 40 V. 10 V. 0 V. 20 V A A. 0 A. 59. A linear coupler (air core mutual reactor) produces its output voltage proportional to the derivative of the input current. Because they are using air cores, linear couplers do not saturate. During internal faults the sum of the busbar currents, and thus their derivatives, is zero. Based on that, a simple busbar protection is thus achieved by connecting the secondary windings of the linear couplers in series (in order to respond to the sum of the primary currents) and attaching a simple voltage sensor. Disadvantages of this approach are similar to those of the high-impedance scheme. External. Fault.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}