.Step-Lap Cores and Stacking Cores have different clamp arrangements. We designed a special preload structure, which not only can resist axial electromagnetic force, but also perform well on resisting radial electromagnetic force. with reinforced clamps, the coils increasetheir anti-axial and radial strength, making the coils compact and strong. So, our transformers have exellent electromagnetic characteristics and the best anti-short-circuit strength. This guarantees the safety of system when an abnormal breakdown occurs.
Transformers standard accessories, normally consist of :
- Name plate (rating plate )
- Oil level indicator
- Oil filling device
- Lifting lugs
- Medium voltage & low voltage bushings
- Base roller or skid base
- Factory name plate
- Grain valve
- Off load tap changer.
- Concenvator with breather
- Dial type thermometer with alarm & tripping contacts
- Bushings cover box cable box
- Elastimold epoxy resin bushing for HV side
Hermetically sealed tank
- Pressure relief valve or device
- Pressure vacuum gauge
- Nitrogen filling valve
- Dial thermometer with alarm & tripping contacts
- Bushing cover box cable box
- Estimold bushing
All products must pass standard Q>C and testing procedures before shipment.
A. Complete routine test as specified in standards , as follow :
- Turn ratio test
- Polarity Test
- Cooper loss (load loss )test
- Iron loss (no load loss) test
- Transformer oil breakdown voltage test
- Measurement of no load current (exciting current)
- Measurement of impedance
- Applied voltage test
- Include Voltahe test
B. Type Test : In case of newly designed transformer or upon special request from customer, we could alsoperform the following type test.
- All rouitne test, item spedified in (A)
- Impulse voltage test
- temperature rise test
10. INSTALLATION :
Our Transformers can be intalled indoor or outdoor, special design or special installation can be arranged upon customer request.