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PowerLab
Ltd offers a range of testing
services including:
RESISTORS, RESISTANCE BOXES AND POTENTIAL DIVIDERS
The measurement of resistance for testing
purposes (not calibration)
100
micro-Ohm to 1 Giga-Ohm ± 0.5% of
reading
INSULATORS AND INSULATING MATERIALS
Up to 6.6kV ±1%
of reading
Above 6.6kV ±3%
of reading
Up to 15kV,
short-circuit current >200mA
- Insulation resistance tests
- Resistivity tests ±5% of reading
Includes testing
of liquids to ASTM D1125
- Dielectric tests
- Direct voltage tests.
- Alternating voltage tests
Tests to
published specifications
Tests of ac 50Hz
or dc equipment to published specifications
ELECTRICAL MACHINES AND AUXILARY APPARATUS
- Motors, generators and other rotating machines
Comparative
measurements of Insulation tan ò, Capacitance and partial
discharge
measurements on rotating machines
CIRCUIT SWITCHING AND RUPTURING DEVICES
- Circuit breakers and controllers
- Switches and isolators
- Fuses and fuse links (semi enclosed)
CABLES AND FEEDERS
- Conductor resistance tests
- Insulation resistance tests
- Capacitance tests
- Direct voltage tests
- Alternating voltage tests
- Partial discharge tests
- Dielectric tests
HIGH VOLTAGE TESTING
General
Capabilities:
0
- 300kV ac, 10A short circuit current,
50Hz. Impulse generation up to 800kV peak and 30kJ
Up to 100kV ±3%
of reading
Up to 300kV ±3%
of reading
Up to 800kV ±3%
of reading
Up to 40kA ±3%
of reading
- Comparative partial discharge
Up to 200kV in
the laboratory and up to 25kV in the field ±3% of test
voltage
- Comparative dielectric tests
Up to 200kV in
the laboratory and 25kV in the field ±3% of test voltage
Capacitance from
100 pF to 22,000 µF
Dissipation
factor from 1/10,000 to 11
ELECTROMAGNETIC COMPATABILITY TESTING
RFI Testing of
equipment to CISPR 18-2, 1986 including amendments 1 and 2
HIGH POWER TESTING
General
capabilities:
Short
circuit testing of
up to 10 kA, 440
V, 50 Hz, 3 phase, 4 seconds,
up to 20 kA, 250
V, 50 Hz, 1 phase, 4 seconds,
up to 40 kA, 50
V, 50 Hz, 3 phase, 4 seconds, at power factor of 0.08 to 1
Temperature
rise testing up to 9000 A, 50
Hz, 1 phase
Temperature rise
tests ±0.5%
Short circuit
tests ±4%
- Power factor ±4%
- Temperature (ambient plus equipment)
Liquid in glass
thermometry -5°C to 50°C for liquids and ambient
±0.2°C
Thermocouple
thermometry -30°C to 100°C ±5°C, up
to 480°C ±1% of reading
Change in
resistance thermometry ±1% of reading
APPROVAL TESTS ON ELECTRICAL APPLIANCES
- General requirements to AS/NZS 3100:2002 plus
amendments
- Tests on electric fence energizers in
accordance with IEC 1101 and IEC 60335-2-76 including regional and
national variations
- Other Tests to IEC 60950.1 including national
variations
- Residual Current Devices to AS 3190 and IEC
61018 including national variations (Parts .1,.2.1, and .2.2)
- Elastomer flexible cords to AS/NZS 3191:1996
including amendment 1, Approval and Test Specification - Electrical
Flexible Cords, excluding tensile strength and elongation tests
HIGH VOLTAGE TESTING
- Calibration of 50Hz, AC, DC and Impulse Voltage
measuring equipment using sphere gaps to IEC 60052 and equivalent
national standards over the following ranges:
50Hz ac voltage
(peak) 8kV to 206kV ±3%
DC voltage
either polarity 8kV to 99kV ±5%
Negative impulse
(50% values) 8kV to 800kV ±3%
Positive impluse
(50% values) 11.2kV to 800kV ±3%
PowerLab
Ltd is IANZ registered to
NZS/ISO/IEC 17025: 1999, General requirements for the competence of
testing and
calibration laboratories.
For
details of PowerLabs IANZ registration
please go to: https://secure.ianz.govt.nz/scripts/IANZWebSearch/IANZWebSearch.exe/displaycoy?coy_no=32
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Copyright PowerLab Ltd 2007, All rights reserved.
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