Atec Megger-DELTA2000 - Manual

DELTA2000
10 kV Automated Insulation
Power Factor Test Set
n Designed to work in high interference
switchyards of up to 765 kV
n Built-in capability for storing, printing and
downloading test results
n Rugged, portable design for field/shop
shop use with automated control via the
PowerDB™ software package
n Optional module for LV 3-phase TTR testing
and excitation current up to 500 mA
(via PowerDB)
n Optional HV reference capacitors
(100 pF, 1000 pF) with 2% dissipation fac-
tor, and a 10 nF HV TTR capacitor
n Optional Priority Access package offering
exclusive services/support (US market only)
DELTA2000
10 kV Automated Insulation Power Factor Test Set
DESCRIPTION
The DELTA2000 is a fully automatic 10 kV insulation
power factor test set designed for condition assessment
of electrical insulation in high voltage apparatus such as
transformers, bushings, circuit breakers, cables, lightning
arresters and rotating machinery.
This set has been designed to provide a comprehensive AC
insulation diagnostic test. Measurements are performed au-
tomatically by the DELTA2000, and results are displayed on
a large graphical LCD. Measured quantities include voltage,
current, power (loss), power factor and capacitance. The
operator has the option of correcting the current and loss
readings to their 2.5 kV or 10 kV equivalents.
The built-in tracking automatic interference suppression
circuit ensures accurate and reliable test results under
severe electrostatic and electromagnetic interference condi-
tions. This feature allows the performance of test measure-
ments in energized switchyards of up to 765 kV.
The operator has the option of storing the test results on
the provided data key, or download directly to a PC or the
included thermal printer. A small printer mounting can be
installed inside the unit’s lid in lieu of the standard printer
that is included. The data key has storage capacity for 127
sets of test results. Information stored on the data key can
be easily retrieved on a PC using the provided software
program and interface box.
In addition to performing insulation power factor tests, the
DELTA2000 can be used for measuring the excitation cur-
rent of transformer windings.
The Priority Access program provides specific guaranteed
support to assure full utilization of the Megger
DELTA2000. The purchase of the program entitles the user
free services for one year from receipt of the unit.
FEATURES AND BENEFITS
n Fully automatic operation eliminates operator error and
reduces testing time.
n
Simplified operation procedure eliminates the need for
extensive software or hardware setups.
n
Performs all standard ungrounded-specimen tests (UST)
and grounded-specimen tests (GST), with or without a
guard circuit.
n
Utilizing the automatic suppression circuitry achieves
high accuracy measurement under severe electrostatic
and electromagnetic interference conditions.
n
Two-piece design reduces size and weight of the system
and provides easier transportation.
n Built-in self diagnostic and calibration check.
n The operator has the option of measuring either the
power factor or dissipation factor (tan ∂).