|Source:||National Institute of Standards and Technology|
|Date:||4/1/94 Record No.: 10065|
|Contact:||Gerry Fitzpatrick, 301-975-2737|
High Voltage Impulse Testing
Multi-megavolt testing of apparatus requires a voltage divider to measure the applied voltage. The divider can see a pulse shape that's different from the actual applied pulse, leaving doubt whether test standards have been accurately met. NIST develops faster reference dividers and better (digitized) HV measurements, and also sets up round-robin tests with manufacturers. The standards themselves are established by industry to reflect ultimate equipment performance. NIST's role is to assure that the (metrology of the) test itself meets the standard, and not whether the standard correctly represents performance of the equipment under test.