Liquid_Dielectric_Test_Sets
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Testing Applications Models Available Measure the breakdown voltage of insulation fluids used in transformers, capacitors, bushings and related high voltage equipment. With the appropriate oil vessel test cell, these test sets are designed to perform tests in accordance with standards ASTM D1816, ASTM D877, IEC 60156, BS 148, VDE 0370, plus other applicable standards. • LD60 • LD75 • LD100 V Lightweight and ruggedly constructed for years of field or lab use V Economical liquid dielectric testing solution V Simple set-up V Semi-automatic operation Description Three standard models rated at 60, 75, and 100 kV are available. The operating controls are conveniently grouped on the front panel and include a large, easy-to-read digital voltmeter, on/off switch with indicator light, rate of rise selector switch, plus a start/reset switch. The test compartment is provided with a transparent cover interlocked to the test circuit with a limit switch to ensure full operating safety. The test set is semi-automatic. The liquid to be tested is placed in the test cell and then placed in the test compartment on the cradle contacts, the rate of rise is selected, the test chamber lid closed, and the switch moved to start position. The test set will automatically raise the voltage. When a breakdown of the liquid occurs, the test sample failure lamp will illuminate, and the meter will hold the breakdown voltage level. Specifications are subject to change without notice.

Center tapped high voltage transformer. Safety interlock engaged when lid is open. Fast acting relay ensures immediate cutout at flashover. Lamp indicating AC power on. Lamp indicating test sample breakdown. Fuses are located on the input to the test set and on the primary of the high voltage transformer. Zero start interlock Memory voltmeter retains breakdown voltage. The test compartment is provided with outlet for convenient plug-in of motor driven stirrer when testing to ASTM D1816 and VDE standards. • 10-40°C, indoor/outdoor in fair weather • Humidity <95% non-condensing • Altitude...

TEST CELLS Liquid Dielectric Comparison Unit As an External Voltmeter unit for use with Phenix Technologies Liquid Dielectric (LD) test set, the LDCU may be used before testing oil or as a periodic standard to verify the voltmeter operation of the LD test set. The easy to use LDCU installs into the same position as the LD test cells. The LDCU consists of precision voltage dividers with passive analog voltmeter. The high voltage resistors and meters are housed in a custom built composite material enclosure with brass terminals for direct connection to the LD. The voltmeter scale offers a...

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