Atec 651028 User Manual
AVO INTERNATIONAL
BRINGING RELIABILITY TO AMPS • VOLTS • OHMS
Heavy-duty Model,
Cat. No. 653031
BIDDLE IMPULSE GENERATORS
Dual-Voltage Model — This 80-lb
(36kg) constant energy unit permits
up to 450 Joules to be discharged over
both the 7.5 and 15 kV ranges of the
unit.
Standard Model — This unit stores up
to 1250 Joules at 25 kV to meet the
requirements of a majority of applications.
Heavy-Duty Model — This powerful
unit, designed for van or substation
use, offers the highest impulse rating
in the industry. It delivers up to 5400
Joules at 30 kV (12 µF). A 24 µF option
is available which delivers up to 10,800
Joules at 30 kv.
APPLICATIONS
Biddle impulse generators pinpoint
faults on primary distribution cable
rated from 3.3 to 35 kV, including directed buried cable and cable in
conduit or duct.
For faults that do not break down in
the impulse mode, a burn mode is provided to reduce the resistance so that
those faults will break down under impulse voltage.
In addition to fault locating, these units
can be used as proof testers to check
the quality of insulation before and
after cable repair.
Dual-voltage Model,
Cat. No. 651016
Standard Model,
Cat. No. 651028
Impulse Generators
BIDDLE
®
Impulse Generators
• Maintenance-free
operation
• Engineered to assure
optimum operator safety
• Heavy-Duty model
delivers up to 10,800
Joules — the highest
impulse in the industry
• Simple to use, even for
the infrequent operator
DESCRIPTION
®
Biddle
signed to locate faults in power cable
by the high voltage impulse method,
in which a high-voltage impulse is
transmitted down the cable to cause
the fault to arc. The arcing fault is then
pinpointed using an appropriate impulse detector.
Biddle impulse generators may also
be used to perform voltage versus time
acceptance tests, or to burn faults that
fail to break down under impulse to
reduce their resistance. AVO offers
four models to meet every application:
15-kV Portable Model — This 75-lb
(34 kg) portable unit delivers 536
Joules for pinpointing faults on most
primary distribution cable rated to 15
kV.
impulse generators are de-
FEATURES AND BENEFITS
Biddle impulse generators offer specific benefits that ensure efficient,
effective and safe fault locating.
Rugged Construction
• Housed in sturdy metal cabinets using welded construction throughout
to withstand the rigors of field operation.
• Impulse switches use tungsten
ohmic contacts for extended life.
Simple Operation
• Modular control panels with a minimum of controls and instrumentation
reduce operation complexity.
• Single lever operation mode selector eliminates the need to disconnect
and manually interchange high voltage output cables.
• High voltage and return leads are
combined in one coaxial cable eliminating the need to unravel the total
length of test cable during operation.
AVTB654 12/01 AVO INTERNATIONAL IS REGISTERED TO ISO 9001 STANDARD
WWW.AVOINTL.COM
BIDDLE IMPULSE GENERATORS
Standard Safety Features
• Isolated high voltage output cable
• Zero-start voltage interlock
• High voltage ON lamp
• Automatic grounding upon shutdown
• Redundant ground connections
• Manual grounding of capacitor and
cable by Mode Selector for safety.
• Viewing window to confirm internal
grounding system
• Circuit breakers for overload protection
• External interlock provision
• Meters remain active even when
power is off
Continuous Voltage Control
• Allows full adjustment of output
voltage over the impulse and proof/
burn range
• Limits the output voltage to the
minimum necessary for breakdown
Maintenance-Free Operation
• Quality components and construction assure ongoing reliable operation
15-kV PortableModel
(Catalog #651017)
For lightweight economy, this 75-lb
(34-kg) instrument discharges 563
Joules at 15 kV.
Specific capabilities include:
• It will locate all faults on 15-kV class
direct buried cable.
• Its 25-kV/30mA burn mode is handy
for simple breakdown testing and fault
resistance reduction on cables up to
15 kV.
15-kV Portable Model, Cat. No. 651017
Dual-voltage Model, Cat. No. 651016
Dual-Voltage Model
(Catalog #651016)
For power without pounds, this lightweight constant energy unit features
dual voltages to permit up to 450
Joules to be discharged over both a
7.5 and 15 kV range. On the 7.5 kV
range this unit utilizes a 16 µF capacitor which produces an extremely loud
“thump” at the fault.
This model is designed primarily for
direct buried cable in applications
that require instrument transport
without a truck or van.
Specific capabilities include:
• On the 7.5 kV range, it can be used
on 5 kV class cable without a reduction in signal energy.
• On the 15 kV range, it is sufficiently
powerful to locate faults on 15 kV
class direct buried cable.
• The 25 kV proof mode permits maintenance testing of 5 kV class cable.
• The 25 kV/30 mA burn mode permits simple breakdown testing and
fault resistance reduction to locate
faults on 15 kV class cable.
Standard Model
(Catalog #651028)
For a broad range of application capability in a portable instrument, this
unit delivers 1250 Joules at 25 kV. Although this unit is heavier than the
15-kV and dual-voltage models, it is
still portable for convenient transport
to remote sites. The energy output
makes this unit effective on direct buried cable and simple conduit circuits.
Specific capabilities include:
• With a 25-kV impulse voltage output, it finds faults on 15, 25 and 35 kV
class direct buried or “in conduit”
cable.
• The 30 kV proof mode permits acceptance testing of 5 kV class cable
and maintenance testing of 8 kV class
cable.
• The 30 kV/50 mA burn mode permits simple breakdown testing and
fault resistance reduction to locate
faults on 25 kV class cable.
Standard model, cat. no. 651028
Heavy-Duty Model
(Catalog #653031)
This model offers the highest impulse
rating in the industry. When using the
optional 12 µF reserve capacitor, it can
deliver a discharge of 10,800 Joules at
30 kV intermittently. This option produces a louder “thump” at the fault
site resulting in locating success at
lower voltages.
This model features skids for standard
mounting in a van, trailer or truck, and
can be optionally caster-mounted for
station use.
This unit is designed for heavy-duty
applications such as complex network
circuits and faults located in pockets
of water and oil. It will find virtually all
the faults in primary distribution
cable.
Specific capabilities include:
• With its 3750 or 7500 Joule at 25 kV
impulse voltage output, it can find
faults on 35 kV class direct buried
cable or in conduit or duct.
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