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 758202  8  Insulation monitoring device, STE 6/100 LD
1 758203  4  Automatic circuit breaker Z 1 A, STE 4/1 LD
1 58285  4  Human model LD
2 58273 Lamp, 24 V/10 W, with housing, STE 2/50 LD
1 58112  4  Variable resistor, 47 kΩ, STE 2/50 LD
1 57715  4  Resistor, 0.1 Ω, STE 2/19 LD
1 58106  4  Resistor, 1 MΩ, STE 2/50 LD
1 58104  8  Resistor, 470 kΩ, STE 2/50 LD
2 58190  8  Capacitor (electrolytic), 470 µF, STE 2/50 LD
1 578795 Three-phase voltage supply, 3×12 V, STE 6/100 LD
3 57744  4  Resistor 1 kOhm, STE 2/19 LD
1 57756  4  Resistor 10 kOhm, STE 2/19 LD
1 579163  8  PWM/PFM generator, STE 2/50 LD
3 57913  8  Toggle switch STE 2/19 LD
1 57736  8  Resistor, 220 Ω, STE 2/19 LD
1 57848  8  Light emitting diode red, STE 2/19 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
1 666425  4  Panel frame C50, two-level, for CPS LD
1 501861  8  Crocodile-clips, polished, set of 6 LD
2 50148  4  Bridging plugs STE 2/19, set of 10 LD
1 738102  4  Set 60 STE plugs, coloured LD
1 72654  4  Plug-in board, 634 mm x 400 mm, STE LD
3 500402  4  Connecting lead, 19A, 10 cm, blue LD
1 500412  4  Connecting lead, 19 A, 25 cm, blue LD
4 500411  4  Connecting lead, 19 A, 25 cm, red LD
2 500420  4  Connecting lead, 19 A, 50 cm, yellow/green LD
2 500441  4  Connecting lead 19 A, 100 cm, red LD
2 500442  4  Connecting lead 19 A, 100 cm, blue LD
1 726890  8  DC-High Current Power Supply 1...32 V/0...20 A LD
1 562793NA Power Adapter 6...24 V LD
2 340811  4  Plug-in axle LD
1 9-4718121-500-10-0  4  Screw driver, insulated, 0.4 x 3.0 x 75 EW
1 778810 DLIT: A1 Basics of car electr(on)ics LD
1 775003DE  4  Book: A1.1.1.5 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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