Fundamentals of electrics and high voltage technology

VA1.1.1.5
Fundamentals of electrics and high voltage  technology
Fundamentals of electrics and high voltage technology

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Description

Protection measures in HV vehicles

In an IT system (IT: French Isolé Terre), the conductive housings of the equipment are grounded but the energy source is not. The high-voltage drive systems of electric and hybrid vehicles are designed in this way. For example,  the housings of the inverter and the electric motor are connected to each other via the chassis. This connection represents the equipotential bonding.

The essential features of such a system include the permanent monitoring of the insulation resistance and a low-resistance potential equalization resistance.

LEYBOLD offers all required components as plug-in elements, which are operated on a 24 V low voltage level for the harmless examination of such systems.

Voltages as well as the equipotential bonding resistance can be measured directly with Sensor-CASSY 2, the insulation resistance is determined and evaluated with a specially designed measuring device.

Components of equipment sets

1 7275187 Basics of HV safety, STE, set LD

Measuring equipment
1 524013SKFZ ** Sensor-CASSY 2 Starter, Automotive LD
1 739835  8  ** Kelvin-sensing cable, set of 2 LD
1 739836 ** Milliohm meter LD
1 739004  8  ** DMM for electrical vehicles LD
1 739949  8  ** HV PC measurement adapter for E-Mobility LD
Accessories
4 50059  8  Safety bridging plugs, black, set of 10 LD
4 726501  4  Safety socket plug-in board, 297 mm x 200 mm LD
3 500602  4  Safety experiment cable, 10 cm, blue LD
1 500612  4  Safety experiment cable, 25 cm, blue LD
4 500611  4  Safety experiment cable, 25 cm, red LD
2 500620  4  Safety connecting lead 50 cm, yellow/green LD
2 500641  8  Safety experiment cable, 100 cm, red LD
2 500642  4  Safety experiment cable, 100 cm, blue LD
1 726890  8  DC power supply unit 1...32 V/0...20 A LD
1 773010  8  Power Supply DC 24 V / 6.5 A LD
1 562793NA Power Adapter 6...24 V LD
1 778810 LIT-digital: Fundamentals of automotive electrical systems LD
1 775003DE  4  LIT-print: Fundamentals of electrics and high voltage technology, German LD
1 775003EN LIT-print: Fundamentals of electrics and high voltage technology LD
1 727585  4  * STE universal case LD

Articles marked with ** are additionally required.

Articles marked with * are not essential, we do however recommend them to carry out the experiment.

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