PEC is fully equipped with mobile oil filtration machines to carry out transformer oil filtration and maintenance activity for Power and distribution transformers.
TRANSFORMER OIL FILTRATION : The transformers in use have to cope with voltages. Therefore it becomes mandatory to maintain optimal insulation properties of the transformer oils by rigid control over moisture, dissolved gases, particulate contamination and acidity.
Transformer oils deteriorate with time and the decay begins the moment the transformer oil is shipped from Manufacturer’s factory. High temperatures, the presence of oxygen and water, the catalytic action of the materials within the transformer, all combine to result in oxidation and cracking of the transformer oil. The by-products of this oxidative process are acidic in nature, which results in an ever-increasing rate of deterioration of the transformer and its oil. This type of contaminated oil completely loses its insulating properties which will affect the life of the transformer in the long run. Hence the insulation properties of transformer oils should be maintained periodically by filtering the oil.
Padmashri Electrical Corporation have mobile oil filtration systems and experienced staff to perform the following on-site services.
The periodic and proper treatment of transformer oil will result in the improvement of the properties of the entire insulating system of transformers and will extend the effective lifetime of the Transformers.
Our Firm is engaged as a services provider for 24x7x365 uninterupted and trouble free power supply to our customer and services offered:
Annual Maintenance contract for any make Transformers.
On Site Testing and Services :Repair & Services
1 . Transformers followings test will be carried out to assertian health of transformers.
2. After testing, oil filtration and circulation is carried out to enhance quality of transformer oil. (BDV, PPM, Acidity and DGA Test)
3. PEC also undertake minor repair of Transformers, OLTC and Brekers at site. The nature of work consists of removing the HT and LT connections, removing the oil, opening the top cover and un-tanking the core coil assembly. Cleaning the core coil assembly checking all the major insulation tightening the core bolt and tie rods and on satisfactory test results the core coil assembly tanked give all the connections after replacing gasket any damaged insulators etc.
On load tap changer and RTCC Panel is the most important device of transformer which needs special attention. PEC are having a team of specialized engineers for repair and maintenance of OLTC and RTCC of any make. The OLTC services includes inspection of complete OLTC (mechanical & Electrical) and its functions, cleaning of Fixed and Moving contacts, checking of TR coil resistance and removing accumilated carbon by flushing of oil. Also in RTCC check the settings of AVR as required by the customer.
1. Testing and Installation, Servicing, Maintenance of all types of HV & LV Breakers like SF6, RMU, VCB & ACB, MCCB etc..
2. PEC perform following tests for all types of Breakers.(Whatever applicable)
This includes replacement of transformer winding , insulation, gasket sealing and removal of moisture.Such repairs / overhauling is carried out at site where adequate lifting and handling facility is available
PEC supply Genuine Spares of Transformers like, Transformer Oil, Buchloz Relay, Oil Temperature Indictor, Winding Temperature, Gaskets, Radiator Valve, Pressure Relief Valve, Off Circuit Tap Changers, HV Bushing & LV Bushing with and without metal Parts, OLTC Spare like fixed contacts, Moving contacts, Motor Belt, TR Coil, OLTC Motor and AVR etc…
1. PEC arrange oil cooled & dry type Transformers of various ratings to cater the emergency requirement of our valued customers. Rental Transformers are generally provided during major breakdown of transformers or any shutdown taken by the customer to carry out the maintenance work of the transformer.
2. On receipt of the information like KVA rating, voltage ratio, type of transformer (Dry/Oil cooled), Terminal arrangement etc. PEC will arrange for the Rental / Service transformer with the commercial conditions as mutually agreed between PEC & the client. We make sure that our our service Engineer will be present at the site during the time of erection and commissioning of the Transformer.
PEC have trained staff who is experienced in carrying out the Erection, Testing & Commissioning works for the HT Equipment
PEC also supply Electrical equipment like Transformer (Oil Cooled / Dry Type), RMU, VCB, ACB, MCCB’s & CSS as per the requirements of the customers.
PEC also undertakes Annual Maintenace Contracts of Transformers, Unitized Substations, HT & LT Brekers, RMUs etc..
Trasformers maintenance schedule as per IS 10028-Part III- Code of Practice
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