A current transformer circuit (100, 200, 300) to dynamically switch a load, the current transformer circuit comprising; a current source circuit (108, 208, 224, 240, 320, 372, 420) including at least one current transformer (310, 382, 430) to produce a current output wave; a burden circuit (116, 216, 232, 248, 324, 396, 472) including at least one burden resistor (328, 400, 476) and a voltage sensor (336, 408, 484), at least a portion of the current output wave to be passed through the burden resistor, and the voltage sensor to sense a voltage across the respective at least one burden resistor, the burden circuit including at least one output (344, 416, 488) configured to output the at least a portion of the current output wave; a switch circuit (120, 260, 348) coupled to the burden circuit and including: a burden switch coupled to the at least one burden resistor at a first terminal included in the burden switch and to a ground at a second terminal included in the burden switch; and a CT short switch coupled to the at least one output at a first terminal included in the CT short switch and to the ground at a second terminal included in the CT short switch; and a microcontroller circuit (124, 264, 504) including a microcontroller, the microcontroller circuit coupled to a power circuit (128, 280, 528) and the switch circuit, the microcontroller being configured to close the burden switch in a sampling configuration thereby shorting the at least one burden resistor to the ground and switching at least one secondary winding of the at least one current transformer to a burden resistor load including the at least one burden resistor, the burden resistor load developing a voltage representative of a current of variable magnitude and shape at the secondary winding of the at least one current transformer, wherein the sampling configuration allows the microcontroller to sample data related to a current source coupled to a primary winding of the current transformer, the microcontroller further configured to close the CT short switch and switch the at least one secondary winding of the at least one current transformer to a low resistance load in a shorting configuration. a current source circuit (108, 208, 224, 240, 320, 372, 420) including at least one current transformer (310, 382, 430) to produce a current output wave; a burden circuit (116, 216, 232, 248, 324, 396, 472) including at least one burden resistor (328, 400, 476) and a voltage sensor (336, 408, 484), at least a portion of the current output wave to be passed through the burden resistor, and the voltage sensor to sense a voltage across the respective at least one burden resistor, the burden circuit including at least one output (344, 416, 488) configured to output the at least a portion of the current output wave; a switch circuit (120, 260, 348) coupled to the burden circuit and including: a burden switch coupled to the at least one burden resistor at a first terminal included in the burden switch and to a ground at a second terminal included in the burden switch; and a CT short switch coupled to the at least one output at a first terminal included in the CT short switch and to the ground at a second terminal included in the CT short switch; and a burden switch coupled to the at least one burden resistor at a first terminal included in the burden switch and to a ground at a second terminal included in the burden switch; and a CT short switch coupled to the at least one output at a first terminal included in the CT short switch and to the ground at a second terminal included in the CT short switch; and a microcontroller circuit (124, 264, 504) including a microcontroller, the microcontroller circuit coupled to a power circuit (128, 280, 528) and the switch circuit, the microcontroller being configured to close the burden switch in a sampling configuration thereby shorting the at least one burden resistor to the ground and switching at least one secondary winding of the at least one current transformer to a burden resistor load including the at least one burden resistor, the burden resistor load developing a voltage representative of a current of variable magnitude and shape at the secondary winding of the at least one current transformer, wherein the sampling configuration allows the microcontroller to sample data related to a current source coupled to a primary winding of the current transformer, the microcontroller further configured to close the CT short switch and switch the at least one secondary winding of the at least one current transformer to a low resistance load in a shorting configuration.