SERVICES

Our company is a leading expert in the trade of electrical products and an end-to-end solution provider in the power generation, transmission, and distribution industry

OUR SERVICES

WPS specialise in supplying electrical components, equipment, and systems to clients in commercial, industrial, and residential sectors.

WPS have a comprehensive range of products from renowned global brands which include but are not limited to electrical cables, wires, lighting and switches, electrical panels, and cabinets.

Our services extend to providing consultation, design, installation, and maintenance services for electrical systems.

GET IN TOUCH

ANNUAL MAINTENANCE CONTRACTS

9

WPS provide annual maintenance contracts to customers ensuring valuable assistance in preventive and corrective maintenance.

9

Our team of engineers and technicians will be mobilised on a 24×7 basis to aid during emergency shutdowns or failures.

CONDITIONAL MONITORING

WPS Provide Solutions for Smart Digital Monitoring of Trannsformers on real time basis using RTU & Communication protocols for below.

9

Online DGA solutions.

9

Online Partial Discharge Analysis.

9

Online TEMPERATURE MONITORING.

9

Online PROTECTION INSTRUMENT STATUS.

ERECTION, TESTING & COMMISSIONING

WPS provide highly qualified and trained engineers and technicians to assist customers during installation of transformers.

Our team can perform assembly of transformers onsite, filling of oil under vacuum and oil filtration.

9

Installation & commissioning.

9

Assembly of transformers.

9

Testing onsite

9

Energisation & commissioning

9

Oil filling under vacuum onsite

9

Low voltage testing onsite

9

Current and voltage transformer testing

9

SFRA

9

DFRA

9

Dynamic current measurement of OLTC

9

Automatic voltage relay testing and commissioning

LIFETIME ASSESSMENT AND HEALTH CHECKS OF TRANSFORMERS

Life of transformers depends on the condition of the insulation system (Kraft paper and oil) with time under impact of:

9

Tan Delta Test.

9

Thermography.

9

Thermal stresses.

9

Electro-dynamic stresses.

9

Rate of deterioration depends upon operating conditions – loading pattern, incipient faults, and maintenance.

9

Partial Discharge Test.

9

Electromagnetic stresses.

9

Automatic voltage relay testing and commissioning.

9

Poor quality of design or materials or production or maintenance or processes result in the failure of transformers.

9

DGA, BDV, Degree of polymerisation, moisture content, Oil Chemical Analysis.

9

Contamination and natural ageing processes effecting the tensile strength of paper.

9

Condition monitoring also enables estimation of the residual life of the transformer.

Transformer lifespan can be analysed through electrical testing which can guarantee the proper & smooth functioning of transformers.

9

Measurement of Voltage Ratio.

9

Vector Group Test.

9

Magnetic Balance Test.

9

Magnetising Current Test.

9

Measurement of windings resistance.

9

Insulation Resistance of HV & LV windings & Bushings.

9

Functional checks of protection devices such as OTI, WTI, PRV, MOLG, Buchholz, cooling fans & pumps.

9

Functional check of the OLTC/OCTC.

OIL FILTRATION AND FILLING

Wilmar Power Solutions provides oil filling and filtration of transformers onsite up to 400Kv Class using oil filtration machines suitable for the rating of transformers. Transformer oil is like a blood in human body.

Oil in the Transformer provides Insulation, Cooling, Arc extinguishes, and Oil dissolved, gases generated by oil degradation, moisture and gases from cellulose insulation, deterioration.

Oil Analysis can be done by the following test & techniques:

9

Physical Appearance (ASTM D1500, D1524)

9

Density (ASTM D1298)

9

BDV (ASTM D877)

9

PPM (ASTM D1533)

9

Resistivity of oil (ASTM 1169)

9

Interfacial Tension (ASTM D971)

9

Kinematic Viscosity (ASTM D445)

9

Flash point (ASTM D92)

9

Acidity (IEC 60296)

9

DGA (ASTM D3612, IEC 60599, IEC 60567, IEEE C57.104) (Working Principal-Gas Chromatography)

9

Degree of polymerization (ASTM D4243)

9

Tan Delta (IEC 60247)

9

Corrosive Sulphur (ASTM D1275B)

9

Neutralization Value

9

Oxidation Stability (IEC 61125)

9

Furan Analysis (ASTM D5837)

9

Oil Filtration using mobile oil filtration units up to 10 KLPH

9

Oil Filling Under Vaccum

9

Oil Passivation & Regeneration

Wilmar Power Solutions also provide oil storage tank and vacuum pump for oil filling activity onsite based on customer requirements.

OVERHAUL & REPAIR OF TRANSFORMERS

Wilmar Power Solutions perform overhaul and repair of transformers up to 100MVA 132kv class. Our range of services are as below:

9

Overhaul of transformers including vacuum oven process and painting.

9

Repair of transformers including oil leakage rectification, replacement of defective components.

9

Overhaul of on-load tap changers.

9

Oil replacement and flushing.

PARTIAL DISCHARGE ANALYSIS

Today, the detection of partial discharge on transformers is a challenge to customers which needs technically-expert engineers and model testing equipment.

Wilmar Power Solutions provide online partial discharge analysis using TEV or the UHF method to customers providing early detection of partial discharges and failure of equipment.

REWINDING & RE-ENGINEERING OF TRANSFORMERS

Wilmar Power Solutions performs rewinding and re-engineering on any type of transformer based on the nature of the complaint from the customer. We can re-wind transformers belonging to any OEM as per the original design and suggest design improvement. Our range of services are as below

9

Rewinding transformers with HV and LV winding as per original design specifications.

9

Replacement of core and insulation.

9

Replacement of off-circuit and on-load tap changers.

9

Re-engineering of transformers to increase power capacity or applying changes to design specifications.

REWINDING & REENGINEERING OF TRANSFORMERS

TRANSFORMER SPARES

9

Supply of spare parts for preventive and breakdown maintenance.

9

Inventory management for customer.

THERMOGRAPHIC ANALYSIS

Thermal scanning of transformers is an essential preventive maintenance tool to study and analyse any potential issues with the cooling system and detect hot spots on transformers before a catastrophic failure of equipment occurs. Abnormal heating associated with high resistance or excessive current flow is the main cause of several problems within electrical systems.

Infrared Thermography allows us to see these invisible thermal signatures that indicate impending damage before the damage occurs. Under-sized conductors, loose connections or excessive current flow may cause abnormally high unwanted heating that may result in dangerously hot electrical circuits.

Components can literally become hot enough to melt. Thermal Imagers enable us to see heat signatures associated with high electrical resistance long before the circuit becomes hot enough to cause an outage or explosion.

9

Fault incipient.

9

Allows scheduling of repairs.

9

Reduction in disassembling, rebuilding or repair of components.

9

Reduce outage & operation costs.

9

Improved & less expensive maintenance.

9

Fast, reliable, & accurate output.

SWITCHGEAR SERVICE

Preventive & Corrective maintenance of LV switchgear is critical for reliable power supply.

Wilmar Power Solutions offers complete scope of services related to Low voltage switchgear along with annual maintenance contracts for customers.

9

Switchgear Repair and Maintenance.

9

Hi-Pot testing.

9

Insulation resistance.

9

Switchgear modification and upgradation.

9

Contact Resistance Test.

9

Primary Injection test kit.

9

Visual inspection and Mechanical inspection.

9

Online PD Analysis.

9