AIR DRYER

News Category

Product Categories

Top Categories

vacuum oil purifier

transformer oil purification machine

lubricant oil filtration machine

compressed air dryer

mobile oil treatment plant

contact us

Email:sales@hlamec.com

Tel:0086 13271950045

Fax:0086 23 81691741

Skype:hlapurifier

Wechat:HLA

Website:www.hlamec.com


Comparative evaluation of parameters of the dielectric breakdown test on transformer oil

position: Home >> news >> FAQ

Comparative evaluation of parameters of the dielectric breakdown test on transformer oil

Release date:2017-05-15 18:30 source:http://www.hlamec.com clicks:

Comparative evaluation of parameters of the dielectric breakdown test on transformer oil


The standard AC dielectric breakdown test result is generally used as one of the acceptance criteria for insulating oil and a maintenance tool for high-voltage power transformers in service. Using the standard electrode parameters and voltage application procedure, a small-oil-volume breakdown is obtained. Unfortunately however, these test parameters are far from field conditions. Therefore, oil breakdown results were systematically evaluated and compared using ASTM and IEC standard procedures and varying many of the test parameters such as the shape and dimensions of the electrodes, the oil circulation, the voltage application procedure, etc. Both clean and contaminated transformer oils were tested. The results reflect the surface and volume effects, giving lower breakdown voltages when a larger coaxial electrode arrangement replaces the standard shape. A 1-min step-by-step voltage application is also found to give lower breakdown voltages. Finally, the effect of water and solid particle contamination is evaluated and compared for different test methods

QQ截图20170515182008.jpg

Chongqing HLA mechanical equipment Co.,Ltd company is a professional oil testing equipment and transmitter manufacture in China.We supply transformer oil dielectric strength tester,tension tester,moisture tester,kinematic viscosity tester,acid value tester,flash point tester etc.


Related Tags:oil filtration

recently viewed:

s
e
r
v
i
c
e
code

scanning

share
Please leave us a message
Please enter the message content, we will contact you shortly.
name
name
phone
phone
email
email