To be able to measure high-surge voltages and transients with short rise times youneed measuring instruments with a high sampling frequency and large Bandwidth.These surges and transients occur primarily at lightning but can also occur at forexample at connecting errors at an electrical switch-gear. This report describes thework with finding two solutions for measuring and log data from these surges andtransients. One temporary solution where a measurement program has beendeveloped. A second solution where different company solutions have been analyzedto decide which fits best. For these measurement solutions two solutions for bringingdown the voltage has been used.

To be able to measure high-surge voltages and transients with short rise times youneed measuring instruments with a high sampling frequency and large Bandwidth.These surges and transients occur primarily at lightning but can also occur at forexample at connecting errors at an electrical switch-gear. This report describes thework with finding two solutions for measuring and log data from these surges andtransients. One temporary solution where a measurement program has beendeveloped. A second solution where different company solutions have been analyzedto decide which fits best. For these measurement solutions two solutions for bringingdown the voltage has been used.

I takt med att energipriserna stiger och resultatet av rådande klimatbelastningen blir allt tydligare så finns det flera starka anledningar att minska energianvändningen. ICA har som mål att minska de direkta utsläppen av växthusgaser med minst 30 % till år 2020 jämfört med år 2006. Examensarbetet behandlar två delar med ett gemensamt syfte; att arbeta fram åtgärder som kan minska energianvändningen och energikostnaderna för kylda lager. Detta gjordes genom en fallstudie på ICA DE Borlänge, vilket är ett av ICAs sex lager på svensk mark. Den ena delen av arbetet är en energiutredning där verksamhetens energianvändning kartlagts och med detta som underlag presenteras sedan ett antal åtgärdsförslag.