Akshar LeePant

We provide the full range of services like:

Design

Conceptualising, Design & Engineering Of Substations/switch Yards

• Preparation of single line diagrams including protection, control and interface requirements.
• Layout drawings like equipment layouts, cable routing / power layout, Illumination system, grounding & lightning systems.
• Preparation of cable schedules, control schematics and inter connection diagrams, panel board schedules.
• CT/PT sizing calculation, Battery Sizing Calculation, Lighting Calculation and Distribution, Earthing Calculations, etc.

Engineering Services

System Study & Calculations

• System study of power distribution system
• Short circuit calculation, Fault level calculation & load flow analysis.
• Protection relay co-ordination studies of over current and earth fault relays and unit protection relay settings for motor, transformer and generator.
• The power system studies shall be carried out by the ETAP (Electrical Transient Analyzer Program).

Protection System Modernisation, Retrofit & Refurbishment

• Protection scheme & system like Differential, REF etc., upgradation & modernization.
• Revamping & retrofitting of switchgears, relays etc. for upgradation of the existing System with detail engineering.

Testing & Commissioning

Protection Relay Testing

• Electromechanical, static & numerical relay testing by secondary injection.
• Auxiliary relays operation pick up/drop off etc testing.
• Protection tripping testing by primary injection.
• All make relay testing i.e. English Electric, Alstom, Areva, Schneider, ABB,
• Siemens, Jyoti, Easun Reyrolle, Ashidha, GE etc.

Protection Scheme

• Restricted Earth Fault ( REF ) protection scheme for transformer.
• Transformer and generator differential protection scheme.
• Bus bar differential protection scheme.
• Pilot wire protection scheme for feeders.
• Synchronizing scheme for parallel operation of generator with Grid.
• Load Shedding Schemes for Grid islanding.
• Bus transfer scheme in independent, manual and auto.

Outdoor Substation

• Power transformer.
• Current transformer & Potential transformer.
• Circuit breaker, Lightning arrester, Isolators, pole insulators, etc.
• NGR, NGT, Earth pit & grid, cables, etc.
• Control and relay panel, RTCC panel, Battery & Battery charger, etc.

Indoor Substation

• Distribution transformer.
• HT/LT switchgear, HT/LT cables, HT/LT motors.
• MCC, PCC, APFC, PDB, LDB, DCDB, Battery & Battery charger etc.

Electrical Energy Audit Services

• Formation of audit groups for specific areas and end use
• Visual inspection and data collection
• Observations on the general condition of the facility and equipment and quantification
• Identification/verification of energy consumption and other parameters by measurements
• Detailed calculations, analyses and assumptions
• Validation
• Potential energy saving opportunities
• Implementation

Consultancy Services

• Preparation of technical specifications for capital and non-capital items.
• Technical review of the proposals and placement of orders to prospective bidders jointly with the owner.
• Inspection of all capital items during stage and final after the manufacturing is completed.
• Identification/verification of energy consumption and other parameters by measurements
• Preparation of all drawings and technical documents required to be submitted to Chief Electrical Inspector approval for work commencement.
• Periodic visit with Vendor engineer at the site during installation work and also emergency visit for as and when required for trouble free execution.