Atec D30R User Manual

D30R: 30KV High Voltage
Surge/High Potential/
Resistance Tester

The D30R brings you the latest
innovations in the testing of
electrical insulation systems. This
tester features the proven accuracy and
reliability of over 40 years of experience.
Specifically designed for shop performance,
this digital instrument provides a cost
effective solution to large motor testing. The
D30R represents Baker Instrument Company’s
on-going commitment to quality in the
design of high performance test equipment.

The D30R is a stand alone unit specifically designed to microseconds), so the D30R complies with IEEE Standard
diagnose faults in very large electrical motors and windings, 522-1992 and IEC Standard 34-15 when testing motor
improving quality in the shop and reducing unnecessary windings and coils.
and costly downtime in the field. The 30KV output allows
you to thoroughly test larger windings with lower
impedance and higher capacitance. The D30R satisfies
the requirements of testing the windings of both AC motors
and DC armatures by producing a Surge with higher
voltage and instantaneous current.

The D30R is housed in a new mobile case with the control
unit permanently affixed to the upper face. 60Kv high
voltage test leads are provided along with dedicated
Kelvin Resistance test leads for convenient portable testing.
These features along with the unsurpassed testing

capabilities make the D30R a powerful and technically
The D30R offers you all of the convenient features of digital advanced tester for in house shop or field environments.
technology. It performs Resistance, DC High Potential and
Surge tests along with incorporating a supply monitor to
insure safe operation from a well grounded source. The
control and display module provides the user with
comprehensive testing results.

The Resistance Test verifies the existence of dead shorts
within the turn-to-turn coils, shows any imbalances between
phases due to turn count differences, along with locating
poor wire connections or contacts.

The DC high potential (HiPot) test is also done with the
D30R. Test voltage is set by the output control from 500
volts up to 30,000 volts. Current is displayed and an
overcurrent trip circuit monitors the test. If current exceeds
the trip level, the test is automatically halted. In its most
sensitive setting, the protective circuit will operate as low as
10 microamps.

The “Key Element” of the Surge test circuit is a grounded
grid hydrogen thyratron tube. The tube conducts very high
peak current (rated up to 20,000 amps). Such high
instantaneous currents are needed to fully test the very low
impedance windings of large motors or form wound coils.
This current is only produced for a few microseconds by the
discharge of a 0.1 microfarad capacitor.

Voltage rise time is 100-200 nanoseconds (0.1 - 0.2

SPECIFICATIONS*

SURGE TEST

Maximum Output Voltage 30,000 Volts
Maximum Output Current 1,800-2,000 amps peak
Maximum Pulse Energy 45 joules
Discharge Capacitance .1 micro-farad

DC HIGH POTENTIAL TEST

Maximum Output Voltage 30,000 Volts
Maximum Output Current 1000 microamps
Overcurrent Trip 10/100/1000 microamps
Current Resolution 1/10/100 microamps

RESISTANCE TEST .0008 ohms - 216 ohms

PHYSICAL CHARACTERISTICS

Weight (pounds) 290 pounds
Dimensions 24 x 55 x 26 inches
Power Requirements 110V/220V Single Phase

1000 Watts, 50/60 Hz

Three Phase Selector Switch Standard on this unit.

* Data subject to change without notice. Printed in USA 10/03

BAKER INSTRUMENT COMPANY

PO Box 587, Fort Collins, CO 80522
PH: [phone], [phone]
Fax: [phone]
Url: www.bakerinst.com

·Fort Collins ·Nurnberg