Peyvên guhertin yekê yekê ser pirûzekên din yên zêdeyên dastanîn. Li ser xebitandin bûyan, kanînên herêm, sîstemên derfet, tank û lîk, konservatûr, qanîtarên derdaxistin, rileyên Buchholz, breyerên silika gel, û nîşaneyên dergendina kanîna. Her weha li ser pirûzekên transport, pakirin, û pargirtin, rêzên cihandina, parçeyên û piçeyên taybet, paşînên komisyonkirin, û pedanên îmalkirin û barkirin.
Zêdeya divê li cîhaz be birkeve biçukîn û ji çirka xwe tevahî dike. Berî ku zêdeya bi kirînên çirx, çîr û çirka berziyê ve bibîne. Derfetên piştguhîn dike ku tank û radiatora zêdeya bi rastî derfet bikin. Eger zêdeya di navenda birî de cihaz kirin, divê li jî heme yanên 1.25 metra be sedik bike.
Fundamenta divê kuşte, pêl û tarî bibe. Di vê demên ku roler hatine cihaz kirin, raillên veguhat dibêjin.
Divê çavkanînên veguhat ji bo rêzikirina oylê, wêjî Pîtkarên Soak Oil, bigihin eger karîbîk bibîne. Divê duvarên fire separation da dibêjin eger bi hewl dikin.
Bilekanên ku ji bo transport dabeşkirin werden divê bi rastî çavkerd bikin. Qiymêtên torque (di Newton - meters de) ji bo wan mafîdan (nuts û bolts) ku mezin an nikri ne:
Bushings bers bikin û ji bo çirka xerîdar ên ya hêsan dikin. IR (Insulation Resistance) ya har bushing bi 500V megger test bikin. Qiymeta divê nekem 100 megohms be. Tafsilên bushings di "Rapora Komisyonkirina" de negirin. Har bushing cihaz bikin û tiştên test caps bi rastî gir bikin ji bo groundingê yekpar.
Gapên arcing horn bi rêzikariya insulation coordination dayin bike.
Eger MOG (herêmî component) bi levera locking hatiye cihaz kirin, wek heqê ve bike. Konservatûr cihaz bikin. Di vê demên ku tap changer a load (OLTC) ye, konservatûrê wê dikarin bi separate way û ya partitioned chamber di navendeya konservatûrê sereke de hatiye cihaz kirin. Eger konservatûrê OLTC herêmî component e, divê wek heqê ve cihaz bikin.
Konservatûr bi GA (General Arrangement) drawing cihaz bikin. Her weha, konservatûrê veguhat bi konservatûrê sereke hatiye girtin.
Pipe connecting bi Buchholz relay di navendeya tanka sereke û konservatûr de cihaz bikin. Hêliya Buchholz relay bi rastî bike, bilindê arrow ya ku navendeya konservatûr de ye.
Breather connecting pipes û silica gel breathers ji bo tanka sereke û konservatûrê OLTC cihaz bikin.
Di cihazkirina flexi separator (air cell) di navendeya konservatûr de, rêzikarên veguhat dibêjin: (Rêzikarên cihazkirina veguhat dibêjin hêli herêmî content heye. Ji ber ku nav content heye di navnîşan de, dibêjin hilîn bike eger content heye.)
Air cell di navendeya konservatûr de cihaz bikin. Piştgiri bike ku hooks air cell bi brackets di navendeya konservatûr de bi rastî bike.
Ji bo herêmî leaks test bikin û piştgiri bike ku herêmî leak ne.
Konservatûr bi air cell pressure tested factory de hatiye cihaz kirin û bi positive pressure slight dispatch kirin. Piştgiri bike ku herêmî oil leakage ne.
Sê air-release valves di navendeya konservatûr de cihaz bikin.
Air-release valves open bike. Air-filling adapter bi breyer pipe re gir bikin û air cell bi air pressure re inflate bikin ji plate instruction ên transformer re. Air pressure in bikin.
Air-release valves open bike û oil filling ji bottom filter valve ên transformer re dest pê bike.
Air-release valves monitor bike. Di dema ku oil start to overflow de, air-release valves one by one close bike. Oil filling stop bike ji bo her air-release valves closed.
Air-filling adapter remove bike.
Oil filling continue bike û Magnetic Oil Level Gauge (MOLG) observe bike.
Oil filling stop bike ji bo needle ên MOLG reach level corresponding to ambient temperature during filling.
Silica-gel breather install bike.
Do not open any of the air-release valves after oil filling is completed. If an air-release valve is opened, air will enter and the oil level will drop.
The ordinary oil-level gauge on the end-cover of the conservator should always indicate a full oil level.
If air enters the conservator, a drop in the oil level on the ordinary oil-level gauge will indicate it.
Regularly monitor the ordinary oil-level gauge.
Bi separator installed, konservatûr positioning û connected above transformer, û parta lowara wek pipe re linked to oil-filling reserve. Proceed as follows:
Create a vacuum inside the separator.
Using the same vacuum source, create a vacuum in the conservator.
Open the oil-filling valve of the transformer. Due to the vacuum in the conservator, the oil level will rise automatically.
Stop oil filling once the required volume is reached in the conservator.
While maintaining the vacuum in the conservator, allow dry air or nitrogen gas to enter the interior of the separator. The separator will then inflate on its own and occupy the free space, as the conservator is not completely full. During operation, in particular, the oil will rise to the top of the conservator.
Inflate the separator to the maximum level indicated on the instruction plate.
Check the vent holes and confirm that there is no residual air in the conservator. Adjust the oil level if necessary.
Floats of the Buchholz relay are tied up during transportation to prevent damage. They should now be released. Additionally, if a 'Test' lever is present, it should be set to the working position.
If an On-Load Tap Changer (OLTC) is provided, it may have its own separate breather.
Check that the color of the silica gel in the main breather is blue.
Remove the rubber cap that closes the breather pipe and the breather.
Fill oil in the oil cup and remove the seal that closes the breather opening.
Similarly, install the OLTC breather.
Radiators should be assembled one at a time. The oil required to fill the radiators is shipped separately in drums. Test an oil sample from each drum for Breakdown Voltage (BDV). Ensure it exceeds the minimum value specified in Indian Standard (I.S.) 1866 for new transformers.
If an oil filter machine is available, use it to fill the conservator completely with oil.
Clean the exterior of one radiator. Remove the blanking plates and clean the gaskets and radiator flanges. If the gaskets are damaged, replace them with spare gaskets.
If the blanking plates are not in place and there is suspicion that foreign material may have entered the radiators, clean their interiors by flushing with fresh and clean transformer oil.
Oil may seep through the tank-side radiator valves and be retained by the blanking plates. This oil should be collected in a clean container when removing the top and bottom blanking plates.
Align the radiator flanges with those on the tank. Ensure that the tank gasket is in position. Fasten them with bolts, nuts, spring washers, etc.
Use the operating handle to open the bottom radiator valve. Gradually unscrew the air-release plug on top of the radiator until air starts to escape.
Do not fully remove the air-release plug from its threads, as it will be difficult to control the oil flow. Close the air-release plug when oil flows steadily from it and no more air comes out.
Open the top radiator valve. The oil level in the conservator will now have dropped. Check for any oil leakage from the radiator itself and the gasket joints.
Restore the oil level and assemble the next radiator in the same manner.
