Voltech Engineers PVT LTD is an electrical engineering service provider for electrical industry and remains in the market for more than one decade. It has many departments. The Design and Engineering department is providing quality engineering service to the major customers in the transmission, Distribution and Power plant area. The engineers are well qualified and well experienced in design & engineering field.

Vision

To achieve this status of leadership in domestic market in providing quality engineering solution thrugh resource productivity, timely response and cost effectiveness.

Mission

To provide service in an Electro-Mechanical Engineering Discplines throgh our areas of expertise in Power System and Infrastructure segment with profitable growth.

Our Slogan is

"Excellence in Electrical Engineering"

For Electrical Primary Engineering

• Over All Sub Station Layout
• Over All Single Line Diagram
• GIS Sub Station Room Layout
• Base Design Package
• Detail Design Package
• Sub Station Earthing (ref : IEEE 80)
• Relay setting Co-ordination Study
• Protection & Metering Diagram
• Station Auxiliary Transformer Sizing Calculation
• Lightening Protection Calculations
• Indoor & Outdoor Lighting layout and Calculation
• Civil Input Drawing floor opening etc.
• Short circuit Force and Cantilever strength calculation
• Erection Key Diagram
• Sag Tension Calculation
• CT & VT Sizing Calculation
• Battery & Charger Sizing Calculation (ref : IEEE 1115 & IEEE 485)
• Single Line Diagram for LV AC & DC Distribution System
• LT Panel Layout For AC & DC
• Switch Yard Layout (AIS)
• Control Room Layout
• MV switch Gear Room Layout
• Small power layout & Drawing
• Cable Voltage Drop Calculation
• Cable Sizing Calculation
• Cable Schedule/List
• Cable Termination Schedule
• Cable Tray Route layout Engineering.
• Cable Quantity Estimation
• Cable Voltage Drop Calculation
• Cable Sizing Calculation
• Cable Schedule/List
• Cable Termination Schedule
• Cable Tray Route layout Engineering.
• Cable Quantity Estimation
• EBOP Engineering & Drawings

For Electrical, Secondary Engineering

• Relay Coordination and Short circuit Study
• Relay and Control panel Engineering
• Relay Setting Calculations, Recommendations and Protective Selectivity Study
• Panel General Arrangement Drawings
• Schematic Drawings
• Bill of Material
• Wiring Table
• Panel Internal View
• Panel Cut Out Drawings
• Lable List

Relay and Control panel Engineering

Relay and Control panel Engineering

Numerical Relays of ABB, AREVA & SIEMENS

• 400/220kV Transmission Line protection
• 400/220kV Interlinking Auto Transformer Protection
• 400/220kV Bus Coupler protection
• 400/220kV Low Impendence Bus Differential protection
• Isolator Interlocking Scheme
• Protection Logic Diagrams

SIEMENS

• 7SA522, Numerical Distance protection Relay
• 7UT612, Numerical Transformer Differential Protection Relay
• 7SS52, Numerical Bus Bar Differential Protection Relay
• 7SJ61 & 7SJ602, Numerical O/C Relay
• 7SD502, Numerical Line Differential Protection Relay
• 7SV512, Numerical Breaker Fail Protection Relay

AREVA

• KBCH 120, Numerical Transformer Differential Protection Relay
• Micom P920, Numerical Voltage Relay
• MFAC14, Transformer Restricted E/F Protection Relay
• MICOMP442, Numerical Distance protection Relay
• MICOMP437, Numerical Distance protection Relay

ABB

• REZ1, Distance Protection Relay
• RET521, Numerical Transformer Protection Relay
• REL511, Numerical Distance protection Relay
• REL522, Numerical Distance protection Relay

For Civil & Structural Engineering services

SWITCHYARD

• Design Basis for Civil & Structural Works
• Soil Investigation Proposal Layout
• Over All Sub Station Structural Layout & Sections
• Tower Structural Calculation by using STAAD Pro 2006
• Girder Structural Calculation
• Equipment Support Structural Calculations (LA, CT, CVT, PT, BPI, ISO, Wt, etc.)
• Power Transformer Foundation Calculation & Drawings
• Station Transformer Foundation Calculation & Drawings
• Circuit Breaker Foundation Calculation & Drawings
• Foundation Calculation for Tower Structures
• Foundation Calculation for Equipment Structures
• Cable Trench & Drain Calculation
• Cable Trench & Drain Section Details
• Boundary Walls Calculation & Drawings
• Fire Walls Calculation & Drawings
• Detailed Fabrication Drawings of Tower, Grider & All Equipment support Structure
• Detailed Fabrication Drawings of Tower, Transformer & All Equipment support Structure
• Foundation & Cable Trench Layout & Sections
• Fence & Gate Details
• Control room Building Architectural Plan, Elevation & Sections
• Control room Building Modeling and Analysis By Using STAAD Pro 2006
• GIS Building Architectural Plan, Elevation and Sections
• GIS Building Modeling and Analysis By Using STAAD Pro 2006
• Footing Foundation Design and Detailed Drawings
• Column Detailed Draings
• Plinth Beam Layout and Sections
• Lintel & Roof Beam Layout and Sections
• Slab calculation
• Slab Layout and Sections
• Bar Bending Schedule for all Civil Works
• BOQ for Pre-Bid-Engineering

Balance of Plant

• Fan Foundations (such as PA, SA, ID, FD, etc)
• Duct Supports in Boiler & T.G buildings
• E.S.P building
• Transformers - UAT, STATION, YARD, etc
• Control Room Buildings
• Administration Buildings
• Security building & Weigh Bridge
• Equipment foundations in D.M plants (such as MGF, DGT, Ro SKID, BAT, etc)
• Neutralization pits & Raw water sump etc
• R.C.C silos
• Pump house building with reservoirs
• Roads and Drains
• Cable Trench Routing
• Substation Inside Plants

The corresponding drawings are prepared by qualified engineers using 2009 AUTOCAD. Relay setting calculations and relay co-ordination is done for the relays of major leading manufacturers in the world using ETAP software.

Relay and control panel schematic drawing preparation, BOM, wiring table preparation for panels up to 400kV level.

Design and engineering is carried out for Gas Insulated switch gear sub stations as well.

Cable and termination schedule is prepared for different type of projects.

Pre bid engineering and BOQ preparation is also done for different type of tenders.