Blog


24

Mar 2021

Milliohm Meter – 16502

When measuring very small resistances, a few ohms to a few milliohms, consistency is difficult. One of the main reasons for variation is slight changes in temperature from one measurement to the next. An effective antidote to temperature change is automatic temperature compensation such as that used in the Chroma 16502 milliohmmeter.


Battery Fire – Decreasing Risk of Electrical Shorts in Lithium Ion Battery Cells

15

Jan 2020

Battery Fire – Decreasing Risk of Electrical Shorts in Lithium Ion Battery Cells

On rare occasions, an electrical short can develop inside the cell after passing production tests due to burrs or particles on the positive electrode reaching the negative electrode after inflation occurs. If these cells that are susceptible to failure pass through to the end user, battery fire or explosion could be a catastrophic result. This paper describes how to mitigate these occurrences in the dry cell stage. This paper is a must read for cell manufacturers who are concerned about the quality of their battery cells and reducing the risk of battery fire before the cell reaches the end user.


22

Nov 2019

Worst Case Leakage Current Testing

Worst Case Leakage Current Testing One time registration required in order to download documents. Register or login to continue. 500.94 KB 67 downloads Leakage current testing is the measurement of electrical “leakage current” that results from powering an electrical appliance via mains or dc power. Leakage current is the unwanted or unintended flow...


24

Sep 2019

PV Inverter (PCS) Test Guide

PV Inverter (PCS) Test Guide One time registration required in order to download documents. Register or login to continue. 1.35 MB 268 downloads This test guide covers terminologies, definitions, specifications, and test items of energy storage inverters' power conversion systems (PCS). Regenerative energy sources such as solar and wind often have...


25

Jan 2019

Ground Bond, Ground Continuity and Earth Continuity

Ground Bond, Ground Continuity and Earth Continuity Download 456.49 KB 329 downloads Ground tests on electrical devices are mandated by product safety standards to protect anyone coming in contact with the product from electrical shock. Common sense tells us that the product should be properly...


26

Jun 2018

LED Power Driver Test Guide

LED Power Driver Test Guide One time registration required in order to download documents. Register or login to continue. 2.02 MB 172 downloads Chroma has defined this LED driver test guide to further advance the quality and technical development of the LED driver based on its 26 years of specialized knowledge in the power testing field and the...


26

Apr 2018

Solar Array Simulation using Real World Data

Solar Array Simulation using Real World Data One time registration required in order to download documents. Register or login to continue. 465.37 KB 52 downloads Solar panels do not supply power in the same method as any other type DC power source. The output power of the array is affected by the amount of sunlight focused upon its surface, measured as irradiance....


09

Mar 2018

Open Short Check Function of Chroma Safety Analyzers

Open Short Check Function of Chroma Safety Analyzers One time registration required in order to download documents. Register or login to continue. 895.84 KB 479 downloads ...


12

Jan 2018

Battery Electrical Tests (Reference IEC61960)

Battery Electrical Tests (Reference IEC61960) One time registration required in order to download documents. Register or login to continue. 589.32 KB 256 downloads The IEC61960 Standard defines Marking Criteria for Rechargeable Batteries (Secondary Batteries) containing Alkaline and other non-acid electrolytes including secondary Lithium Cells and batteries for portable...



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