Overview: Current Transducer LF 205-P
For the electronic measurement of currents: DC, AC, pulsed..., with galvanic separation between the primary circuit and the secondary circuit. IP N = 200 A Electrical data IP N Primary nominal RMS current IP M Primary current, measuring range RM Measuring resistance @ with ±12 V @ ±200 A max @ ±420 A max with ±15 V @ ±200 A max @ ±420 A max IS N Secondary nominal RMS current NP/NS Turns ratio UC Supply voltage (+5 %) IC Current consumption @ ±15 V 200 A 0 … ±420 A TA = 70 °C TA = 85 °C R R R R M min M max M min M max 0 71 0 69 Ω 0 14 0 12 Ω 0 100 23 98 Ω 0 28 23 26 Ω 100 mA 1 : 2000 ±12 … 15 V 17 + IS mA Accuracy - Dynamic performance data εtot Total error @ IP N, TA = 25 °C εL Linearity error ±0.5 % < 0.1 % Typ Max IO E Electrical offset current @ IP = 0, TA = 25 °C ±0.2 mA IO M Magnetic offset current 1) @ IP = 0 and specified RM, after an overload of 3 × IP N ±0.1 mA IO T Temperature variation of IO −40 °C … +85 °C ±0.12 ±0.4 mA t D 10 Delay time to 10 % of the final output value for IP N step < 500 ns t D 90 Delay time to 90 % of the final output value for IP N step 2) < 1 µs BW Frequency bandwidth (−3 dB) DC … 100 kHz General data TA Ambient operating temperature TA st Ambient storage temperature RS Resistance of secondary winding @ TA = 70°C @ TA = 85°C m Mass Standards −40 ... + 85 °C −40 ... + 90 °C 33 Ω 35 Ω 58 g EN 50178: 1997 Notes: 1) As a result of the coercive force of the magnetic circuit 2) With a di/dt of 100 A/µs.
