Oil Analysis, Transformer Oil Testing & SF6 Gas Testing
Mahanga Holdings Limited are
the sole representative of TJ|H2b Analytical Services Pty Ltd in New Zealand.
TJ|H2b Analytical Services, Inc. is an independent analytical laboratory and consulting
firm that specialises in diagnostic testing of oil, gas and other insulating materials
used in transformers, power circuit breakers and on-load tap-changers. They are the
industry leaders in the development and application of condition-based maintenance
programs for electric utilities, industrial high-voltage power users and service
We can provide all lab tests and also stringent diagnostic testing on transformers,
on-load tap changers, oil circuit breakers and SF6 applications.
When you order your test kits from
Mahanga Holdings Limited, each kit comes with the following items:
- Individualy packaged
- Oil sample bottles
- Oil sample clear plastic
- Associated paperwork
- Detailed sampling instructions
We supply seperate sampling
tubes to ensure the chances of cross contamination between samples is minimised.
TJ|H2b use full gas extraction methods to ensure repeatability and accuracy
in tests. When you consider that the assets being tested are the most important
items on your grid, you should expect no less.
Please contact us direct
for very competitive prices and turn around times on oil samples and analysis.
Oil Sampling Kit
- Dissolved Gas Analysis (DGA)
- Interfacial Tension
- Dielectric Breakdown Voltage
- Colour & Visual Examination
- Dielectric Dissipation Factor
- Furfurals (Furan)
- Degree of Polymerization
- Particle Count
- Corrosive Sulphur
specific diagnostic packages
- Transformer Condition Assessment
- Breaker Oil Analysis BOA
- Tapchanger Activity Signature
- Breaker Gas Analysis BGA
- Live Tank Oil Sampling (LTOS)
for Ring Main Units
Products & Services
- Each Report contains a Condition
code (1-4 *)
- Laboratory Recommended Procedure
- Recommended Retest Period
- Turbulent Flush Sampling
- Gas Sample Collection Unit
(GSCU) for SF6
| SF6 Gas
Sample Collection Unit
Breaker Gas Analysis (BGA®)
for SF 6 filled Equipment.
Like oil in oil-filled
equipment, SF 6 can be sampled and tested to gain an assessment of equipment
condition and fluid quality. TJ|H2b have developed a unique and simple sampling
method that can ensure a sample of high integrity is taken.
| LTOS Sampling
of Live Tank Oil Sampling (LTOS)
Live Tank Oil Sampling
(LTOS) has been devised by EA Technology in the UK as a low cost, safe
and reliable method of obtaining an oil sample from 11kV oil filled switchgear,
with the minimum of time and interference to the power supply.
This service will
be supportive of our already popular Transformer Condition Analysis (TCA)
and Tap Changer Activity Signature Analysis (TASA) services being utilised
throughout New Zealand
We feel sure that
this service will be of considerable benefit in informing customers of
the healthy, or otherwise, condition of Ring Main Units and similar equipment,
with minimal or no shutdown time.