FCT Ultra-Fast Current Transformer

Brand: Magnelab
Origin: United States

The FCT series measures pulsed and AC current, with different apertures and output sensitivities.

Key specification options

Output (V/A) (1MΩ): 5 / 2.5 / 1.0 and more
RMS (A): 2 / 5 / 8 and more
Maximum peak (A): 200 / 400 / 1000 and more
Droop (%/us): 3 / 0.75 / 0.13 and more
Rise time (ns): 0.875 / 0.7 / 1.75 and more
Max l.t*(As) in 50Ω: 0.0001 / 0.0004 / 0.0025 and more

Measurement and application

AC and pulse current testing involves observing how a waveform changes over time as well as its amplitude. The transformer construction, conductor arrangement and output connection all influence the measurement setup.

Selection and connections

Prepare details of the conductor, available space, waveform and oscilloscope input. Installation requirements differ between fixed and opening structures; output cables and termination should follow the instructions for the selected model.

Models & specifications

FCT Ultra-Fast Current Transformer

FCT model specifications

FCT Ultra-Fast Current Transformer / FCT model specifications
Model	Output (V/A) (1MΩ)	RMS (A)	Maximum peak (A)	Droop (%/us)	Rise time (ns)	Max l.t*(As) in 50Ω	-3db low (Hz)	-3db high (MHz)
CT-B5.0	5	2	200	3	0.875	0.0001	4800	400
CT-B2.5	2.5	5	400	0.75	0.7	0.0004	1200	500
CT-B1.0	1.0	8	1000	0.13	0.7	0.0025	200	500
CT-B0.5	0.5	11	2000	0.03	1.75	0.01	48	200
CT-B0.25	0.25	16	4000	0.015	3.5	0.013	24	100
CT-B0.1	0.1	25	10000	0.006	7	0.013	10	50
CT-B0.05	0.05	35	20000	0.003	17.5	0.053	5	20
CT-C5.0	5	2	200	3	0.875	0.0002	4800	400
CT-C2.5	2.5	5	400	0.75	0.7	0.0008	1200	500
CT-C1.0	1.0	11	1000	0.13	0.7	0.005	200	500
CT-C0.5	0.5	16	2000	0.03	1.75	0.02	48	200
CT-C0.25	0.25	22	4000	0.01	3.5	0.08	12	100
CT-C0.1	0.1	35	10000	0.004	7	0.167	6	50
CT-C0.05	0.05	50	20000	0.002	17.5	0.283	3	20
CT-D5.0	5	2	200	3	0.875	0.0002	4800	400
CT-D2.5	2.5	5	400	0.75	0.7	0.0008	1200	500
CT-D1.0	1.0	11	1000	0.13	0.7	0.005	200	500
CT-D0.5	0.5	16	2000	0.03	1.75	0.02	48	200
CT-D0.25	0.25	22	4000	0.01	3.5	0.08	12	100
CT-D0.1	0.1	35	10000	0.002	7	0.5	2	50
CT-D0.05	0.05	50	20000	0.001	17.5	0.756	1	20
CT-E5.0	5.0	2	200	3	0.875	0.0002	4800	400
CT-E2.5	2.5	5	400	0.75	0.7	0.0008	1200	500
CT-E1.0	1.0	11	1000	0.13	0.7	0.005	200	500
CT-E0.5	0.5	22	2000	0.03	1.75	0.02	48	200
CT-E0.25	0.25	32	4000	0.01	3.5	0.08	12	100
CT-E0.1	0.1	50	10000	0.002	7	0.5	2	50
CT-E0.05	0.05	71	20000	0.001	17.5	0.756	1	20
CT-F5.0	5.0	2	200	3	0.875	0.0002	4800	400
CT-F2.5	2.5	5	400	0.75	0.7	0.0008	1200	500
CT-F1.0	1.0	11	1000	0.13	0.7	0.005	200	500
CT-F0.5	0.5	22	2000	0.03	1.75	0.02	48	200
CT-F0.25	0.25	32	4000	0.01	3.5	0.08	12	100
CT-F0.1	0.1	50	10000	0.002	7	0.5	2	50
CT-F0.05	0.05	71	20000	0.001	17.5	0.756	1	20