- keep and check, clean
-
- install check current protection circuit. The right size
- no cables sunlight
- keep the wires were pressed with the thing that has คมหร is there heavy.
. Over current relayCheck current per the lowest offer. Where relay work
- inspection time per minimum where offer relay order ปลดวงจร
- check the value min.pick. Up current
- check the contact page
- check up operating time 10.2 to check and correct the defects of transformer transformer transformer oil
are categorized into 2 type transformer model is used, liquid and dry transformer 1,
. Transformer type used liquid (liquid - filled
.Transformer) that we are familiar with is a transformer type use. It water. It, act as insulation between coils with body and between the coil with iron core. Heating and cooling structure of transformer type liquid-cooled
2.Transformer type dry. Popular general use is coated with insulating epoxy
lock (epoxy or cast resin dry type transformer) used in air cooling. There is no danger of burns and blast like type transformer using oil
.Inspection and maintenance should consider the various elements as follows:
-
-
- lifetime environment condition use
3. The characteristics of the water. In transformer oil and its consequences
-
-
. Chemical Physics- Electrical installation transformer
-. Need to install transformer level
- joint activities. Should the minimal
-
- clean Bush out adjust position of tap changer
- check installing fuse
- measure the resistance of the soil
.- check the water it transformers and check the moisture of transformer oil
-. Check and set up the needle temperature
- before the power supply should use megger. Measure the insulation resistance
-. To measure current and voltage, while the maximum load
.- the oil sample to check the insulation water. It
-
test inspection records above water. Oil transformer
- humidity test of water. Oil transformer by means of listening to the sound of crackling
-. Test voltage tolerance of water. It
.- acidity test
- check up. It - test flash point
- Inspection of water. Oil from color and odor
ก. water. It has a white sediment dim.
B. splinter green
C. water. It brown sugar. To
. Pungent smell of smell acetate ethylene acid
.
.The operating principle, for, maintenance of transformer
- the first month to check oil level, the oil and the seepage
- check regularly, every year the 1 - 2 times
-. Check every time to cut both high strength and แรงต,
.- Tom clean Bush left. Gauge oil transformer oil tank, oil and water level, seepage
- check the contact page of tap changer
- check. Silica gel
- check cracks of Bush matching
- check point, should tighten the camp tight
.- check the position and phase of air gap arcing horn
- monitoring system grounding
-. Inspection of transformer tank rust - check the alarm system malfunctions.
.- check the scaffolding or components installed transformer protection and lightning
- transformer's fault often. To check the deterioration of water. It at least 6 times per month!- after the transformer's fault should be left for at least 15 minutes before a new power cable.
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