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Liquid Dielectric Test Sets

Know your insulation limits – Performs dielectric strength testing of insulating liquids

– Take it where you need it—portable units for field or laboratory testing

– Test for conformance to ASTM D1816 and D877, IEC 156, BS 148, VDE 0370, and others

Operating safety features include an enclosed test chamber with a transparent cover, cover safety switch, and zero-start interlock on the high voltage output. Output voltage is continuously increased from 0 to the breakdown voltage. The rate of rise may be selected at 500, 2000 or 3000 volts per second (LD60) and 2000 volts per second or continuously variable (LD75 and LD100).

A single-range digital meter is used to record the breakdown voltage. The meter is reset to zero with a switch. Simplified operation is achieved with the use of cradle contacts for the test cells. The liquid to be tested is placed in the test cell. The test cell is then placed inside the test cage on the cradle contacts.

Operating controls are conveniently grouped on the front panel. These include a large, easy-to-read meter, on/off switch with pilot lamp, a rate of rise selector switch, plus a start/reset switch. When a breakdown of the liquid occurs, a failure lamp will light and the meter will lock on the breakdown voltage.

Model number Description Catalog number PriceTest sets

LD60 60 kV liquid dielectric test set, 120 VAC/60 Hz, or 220 VAC/50 Hz. Specify voltage at time of order AB-20023-41 $ LD75 75 kV liquid dielectric test set, 220 VAC/50 Hz, or 120 VAC/60 Hz. Specify voltage at time of order AB-20023-42

LD100 100 kV liquid dielectric test set, variable input 120 VAC/60 Hz or 220 VAC/50 Hz. Specify voltage at time of order AB-20023-43 Test cells

TC/DE Test cell for ASTM D877 for LD60 AB-20023-44 TC/VDE Test cell for ASTM D1816 for LD60 AB-20023-45 TC/BS Test cell for LD60 for BSI standard AB-20023-46 TC/100 Test cell for LD75 or LD100 AB-20023-47 LDCU60 Voltmeter comparison cell for LD60 AB-20023-48

Wait! Don’t Forget…Arc Flash Safety products, see pages 694–696.

Test standard Test electrodes Gap Rate of rise kV/s

ASTM D877(USA)

Polished brass disc1.0" (25 mm) dia

0.1"± 0.0005" 3

ASTM D1816(USA)

Spherical dome1.4" (36 mm) dia

0.040" or0.080" ± 0.001" 0.5

VDE (Germany)

Spherical dome1.4" (36 mm) dia

2.5 mm ± 0.05 2

IEC(Europe)

Spherical dome1.4" (36 mm) dia

2.5 mm ± 0.1 2

BSI(UK)

Spherical cap0.5" (12.5 mm) dia

2.5 mm ± 0.1 2

Specifications for test sets

Model number Input* Output Rates of rise

Metering Dimensions(W x H x D)Range Type Accuracy

LD60 120 VAC, 60 Hz or 220 VAC, 50 Hz;*must specify

0 to 60 kV, RMS 0.5, 2, 3 kV/s 0 to 60.0 kVDigital ±1% FS

21" x 13" x 17" (432 x 330 x 406 mm)LD75 0 to 75 kV, RMS 2 kV/s Variable 0 to 75.0 kV 32" x 13" x 18" (813 x 330 x 457 mm)LD100 0 to 100 kV, RMS 2 kV/s variable 0 to 100 kV 36" x 16" x 20" (914 x 406 x 508 mm)

Accessories

AB-17101-28 NIST-traceable calibration with data . . . . . . . . . . . . . . . . . . . . . . . . . . $