Dielectric testing is a evaluation process performed by applying a voltage to an electrical component that exceeds its normal operating voltage. The purpose of the test is to determine if a componentâs insulation is adequate enough to protect the user from electric shock.d. The most common type of testing is the dielectric breakdown test. In this procedure, a high voltage electrical current is applied to the component. The dielectric tester monitors the amount of current leakage during the test to determine if the insulation has failed.
With the development of the new 8-speed automatic transmission by ZF, the focus is not on the number of speeds but rather on the minimization of fuel consumption. There are a number of innovations that contribute to this development.
The input speed sensor measures the RPM of the input shaft of the transmission. With the engine running and the vehicle in gear (forward or reverse), if the car or truck is not moving, the input shaft of the transmission is also not moving.This is because the torque converter, which is a fluid drive, allows this effect, which is perceived as 'slipping'.When the input shaft moves, the input speed sensor detects this motion, and wires deliver this signal to the control module.he Vehicle Speed Sensor measures vehicle speed. If it fails or malfunctions the automatic transmission may not operate properly. It may also cause the automatic transmission to go into failsafe mode making it appear that the problem is more severe than it actually is.