Satcon

23/08/2026

Grid connectivity system studies by ETAP software

Grid Connectivity Study is an essential requirement for connecting a Solar or Wind Power Plant to the electrical grid as per applicable CEA requirements.

The study evaluates whether the proposed plant can operate safely and reliably without adversely affecting the grid.

Key studies include Load Flow, Short Circuit, Voltage Stability and Dynamic and Transient Stability analysis.

The study also assesses reactive power capability, voltage control and power factor performance at the Point of Interconnection (POI).

For inverter-based plants, LVRT and HVRT, harmonic distortion, flicker and power-quality performance are important considerations.

Protection coordination and fault-clearing performance are also verified with the grid network.

Different operating scenarios, including maximum generation and N-1 contingency, are normally assessed.

The final study demonstrates compliance with applicable CEA connectivity standards, Grid Code and utility requirements.

A properly executed connectivity study helps ensure reliable evacuation and smooth integration of renewable generation into the grid.

SATCON has experience and resources to carry out such studies.. For more info visit us at http://www.satcondesign.com/latest-update/grid-connectivity-system-studies-by-etap-software/143?utm_source=facebookpage

17/05/2026

Battery Energy Storage System Design and Engineering

A Battery Energy Storage System (BESS) is an advanced technological solution that stores electrical energy in rechargeable batteries for later use. BESS plays a critical role in modern power systems by improving grid reliability, integrating renewable energy sources, enhancing power quality, and supporting energy management applications.

With increasing pe*******on of renewable energy sources such as solar and wind, which are intermittent in nature, battery storage systems have become an essential component of the electrical power sector.

A typical Battery Energy Storage System consists of the following major components:

1. Battery Modules and Battery Packs.
2. Battery Management System (BMS).
3. Power Conversion System (PCS).
4. Energy Management System (EMS).
5. Thermal Management System.
6. EHV switchyard or GIS for grid integration of the BESS.

Satcon has the capacity to deliver the design and drawings of BESS along with EHV switchyard or GIS for integration with the Grid substation. Satcon's design and drawings are being used by many customers in India and outside India for their BESS projects since 2022. For more info visit us at http://www.satcondesign.com/latest-update/battery-energy-storage-system-design-and-engineering/142?utm_source=facebookpage

03/05/2026

Steel Structural Design and Drawings for EHV Switchyards

In an Air insulated outdoor switchyard, live conductors are tied at different levels in such a way that required phase to phase, phase to earth and ground clearances are maintained as per relevant national or international standards. To elevate the conductor to the desired height, steel support structures of different height are used. The structures can be lattice type or tubular pipe type.

The lattice type structures are lower in weight but comparatively more difficult to assemble and erect at site since various parts of the structure are loosely transported.

Tubular structures, although the weight is bit higher, but easy to mount at site on the plinth since number of assembly points are much less than lattice structures.

Satcon is practicing preparation of Design and Drawings of Switchyard structures like 15 to 30m high gantry towers having beams connected at different levels, 10-27m span gantry beams, 25-50m high lightning cm lighting masts, 33kV to 765kV equipment support structures using staad.pro software. The drawings of Satcon includes :

1. GA drawing,
2. Fabrication drawing,
3. Shop drawing.

Satcon has more than 22 years experience in delivering these drawings in India and many other countries. . For more info visit us at http://www.satcondesign.com/latest-update/steel-structural-design-and-drawings-for-ehv-switchyards/141?utm_source=facebookpage

02/11/2025

Discover all that Satconengg has to offer on our website!

Stay informed with the latest updates, explore our wide range of offerings, and connect with everything exciting happening here.

Visit us at https://satconengg.com today to see what’s waiting for you!

We provide quality service at a reasonable price as an engineering consultant specializing in power distribution services and substation design.

14/08/2025

Electrical Balance of Plant of Thermal power plant

Electrical balance of plant of a thermal power plant is the electrical part of the works of the power plant except the main boiler, turbine and generator package. It covers the electrical system of the EHV Switchyard, coal handing or fuel handling plant, Ash handling plant, Cooling water system, hydrogen generation plant, lub oil plants, fire fighting pump house, Emergency power generators and other parts power plant. All these portions of the power plant receives power at medium voltage like 11kV and then stepped down to 415V for utilisation in different drives, motors, lighting and air conditioning systems. The cabling in these plants are done either in cable trenches or overhead cable trestles.
SATCON has long experience in delivering the electrical system drawings like SLDs, electrical layout drawing, cable tray and trench layout drawing, earthing layout and calculations, lighting drawings and calculations, power and control cable schedules and interconnection diagrams, civil drawings and calculations of the electrical substations or MCC rooms for power plants ranging from 100 MW to 800MW units For more info visit us at http://www.satcondesign.com/latest-update/electrical-balance-of-plant-of-thermal-power-plant/138?utm_source=facebookpage

10/08/2025

Detail Project Report of EHV Transmission system

After conclusion of the Feasibility study report of the Transmission project, the next step is to be prepare a detail project report of the electrical Transmission system to further describe the system by including the following aspects :
1. Introduction.
2. System description.
3. Executive summary of the project.
4. The benefits of the Transmission project.
5. Detail description of the scope and equipment materials required.
6. Description of various alternatives such as alternative route of the Transmission lines, alternative location of the EHV substations.
7. System technical particulars such as
a. magnitude of power flow,
b. rated voltage,
c. Rated current,
d. frequency,
e. reactive power flow and compensation, if required,
f. Short circuit current and duration,
g. phase to phase and phase to earth clearance,
h. Creepage distance, etc.
8. Bill of materials.
9. Short technical spec of all major equipment like transformers, circuit breakers, instrument transformers, lightning arresters, disconnects, neutral grounding devices, control & relay panels, SCADA system, Fiber optic communication system, power and control cables etc.
10. Price estimate and source of fund.
11. Drawings comprising of the following :
a. Single line diagram.
b. Preliminary survey drawing and identifying alternative route of the proposed Transmission line and substation location.
c. Substation layout plan.
Satcon is delivering Detail project report preparation services for last two decades. We have the resources and manpower to deliver such services at a shorter delivery time. For more info visit us at http://www.satcondesign.com/latest-update//137?utm_source=facebookpage

28/06/2025

Power receiving and distribution to Load block substations in Large steel plants :

In large steel plants power is generally received at 220kV Switchyard or GIS Substation. It is stepped down to 33kV by step down transformers of approx. capacity of 100MVA. The 33kV Switchgear is normally air insulated or gas insulated type and has many outgoing feeders to load block substations at different load centers of the steel plant. The 33kV cables in the outgoing feeders are laid on cable trays in underground cable tunnels. The load block substations (LBSS) steps down 33kV to utilisation voltage of 6.6kV or 415V through transformers rated 20MVA or so. LT transformers are not rated above 2.5MVA. The entire power receiving and distribution system is controlled by a computerised data feedback and remote control system and it is essential to improve the power factor at the 220kV incomer.

Satcon has rich experience in designing of the Main receiving substation and downstream LBSS for large steel plants. Satcon has provided such designs for SAIL Bokaro and IISCO Burnpur. . For more info visit us at http://www.satcondesign.com/latest-update/power-receiving-and-distribution-to-load-block-sub/136?utm_source=facebookpage

17/05/2025

High voltage Switchyard Design and Engineering:

High voltage Switchyards are required for the following purposes :

1. To receive power at high voltage for various industries and then step down to lower voltages for distribution within the plant.
2. To receive power at high voltage by one or two incoming line feeders and then distribute to several locations or downstream substations at the same voltage. This type of of substation is called switching stations.
3. To receive power supply at lower voltages and then step up to high voltage for supplying power to grid substation. This type of substation is required for power generating plants.

The equipment and connections, bus bars are designed with respect to rated current flow through the feeders and bus bar. The short circuit current and duration also plays an important role in deciding the equipment and connection sizes.

The clearances (phase to phase, phase to earth, sectional clearances, ground clearances are decided as per CEA guideline or national or international standards.

Satcon is practicing such high voltage switchyard design for last two decades. We have very senior engineers who has high expertise to design any type of substation - AIS, Indoor GIS, Outdoor GIS for voltages upto 765kV.. For more info visit us at http://www.satcondesign.com/latest-update/high-voltage-switchyard-design-and-engineering-h/135?utm_source=facebookpage

20/04/2025

𝐒𝐭𝐞𝐞𝐥 𝐒𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞 𝐃𝐞𝐬𝐢𝐠𝐧 𝐟𝐨𝐫 𝐄𝐇𝐕 𝐒𝐮𝐛𝐬𝐭𝐚𝐭𝐢𝐨𝐧𝐬:

In EHV outdoor Switchyards, to create sufficient ground clearance and phase to earth clearance, the live conductor heights from ground needs to be increased with the help of steel structures. Gantry Towers and beams are lattice type structures and equipment support structures are either lattice type or pipe type structures. These structures are designed as per Indian standard (IS) 800 or 802 by using staad pro software.

Satcon has very rich expertise of more than two decades in Steel structures designs for EHV substations for utilities and renewable energy projects. Such designs are delivered for overseas projects as well. For overseas projects, the designs are done as per relevant Eurocode or ASCE standard.


For more info visit us at http://www.satcondesign.com/latest-update/steel-structure-design-for-ehv-substations-in-ehv/134?utm_source=facebookpage

05/04/2025

𝐂𝐨𝐧𝐭𝐫𝐨𝐥 & 𝐑𝐞𝐥𝐚𝐲 𝐏𝐚𝐧𝐞𝐥 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠 :

In a Substation, Control & Relay panels are considered as the heart of the system. The Control and Relay panels can be separate panels or can be combined. The control panels, if sepatrated from the Relay panels, provide the control switches, alarm, annunciation, indication, interlocking and metering of the bay equipment either local manually or remote manually. Nowadays, a Bay control unit (BCU) is mounted on the control panel to monitor the entire operation of the bay and management from the control panel itself or from SCADA room HMI.

The Relay panels house the numerical protection relays of the bay along with auxiliary relays, contact multiplications, lock out relays, trip circuit supervision, lock out relay supervision, DC closing and tripping supply supervision etc. The Relay panel also interfaces with the Control panel for required interlocks and permissives.

Satcon is practicing such Control and Relay panel engineering for last two decades and has gathered very rich experience in preparing the Technical specifications, procurement assistance, vendor drawing review, preparation of scheme drawings of the CRP. Satcon can provide these services for substations of 765kV voltage or below.
For more info visit us at http://www.satcondesign.com/latest-update/control-relay-panel-engineering-in-a-substatio/133?utm_source=facebookpage