{"id":3110,"date":"2026-02-25T16:42:50","date_gmt":"2026-02-25T11:12:50","guid":{"rendered":"https:\/\/www.balajiengineers.in\/blog\/?p=3110"},"modified":"2026-03-14T15:12:31","modified_gmt":"2026-03-14T09:42:31","slug":"leading-substation-maintainance-service-providers-in-india","status":"publish","type":"post","link":"https:\/\/www.balajiengineers.in\/blog\/leading-substation-maintainance-service-providers-in-india\/","title":{"rendered":"Leading Substation Maintainance Service Providers In India"},"content":{"rendered":"\t\t
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Substations are vital hubs in the power distribution network, playing a crucial role in managing and distributing electricity from power plants to consumers. Proper maintenance of substation equipment ensures the reliability, efficiency, and safety of the electrical grid. This blog will provide a detailed guide on how to maintain key substation components, emphasizing best practices and safety protocols.

Substations are complex assemblies of equipment that transform voltage levels and distribute electrical power efficiently and safely.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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They consist of various components including transformers, switchgear, circuit breakers, protective relays, and control systems. Each of these components requires meticulous maintenance to prevent failures that could lead to power outages or even catastrophic equipment damage.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Importance of Substation Maintenance<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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<\/i>\u00a0Reliability and Safety:<\/b>\u00a0Substations run more reliably when they receive proper maintenance, which lowers the possibility of outages. Additionally, it improves public and worker safety by preventing equipment breakdowns that can result in accidents or fires.<\/p>

<\/i>\u00a0Life of Equipment:<\/b>\u00a0Regular maintenance extends the life of substation components. This not only reduces the need for costly replacements, but also ensures consistent performance<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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<\/i>\u00a0Efficiency of Substation Equipment’s :<\/b>\u00a0Well-maintained substations equipments generally more efficient, decreasing energy losses and enhancing overall system performance.<\/p>

<\/i>\u00a0Regulatory Compliance of Maintenance :<\/b>\u00a0Compliance with maintenance schedules and standards is often a regulatory requirement. Also Non-maintained equipment can lead to heavy fines and damage cost to the system.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Key Components of a Substation<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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1.\u00a0 Transformers
2.\u00a0 Switchgear
3. Circuit Breakers
4. Protective Relays<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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\u00a0<\/p>

5. Batteries & Chargers\u00a0
6. Control Systems\u00a0
7. Busbars & Connectors\u00a0
8. Grounding Systems<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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1.Transformers:<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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Transformer are the one of the major equipment in substation. They are essential for stepping voltage levels up or down in the power distribution process. Their maintenance is critical for preventing failures and ensuring efficient operation.<\/p>

<\/i>\u00a0Oil Analysis:<\/b>
Regularly test transformer oil for moisture, acidity, and dielectric strength. Perform dissolved gas analysis (DGA) to detect potential faults.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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It is advised to check BDV value of Transformer oil periodically to analyse the health of transformer and plan for oil filtration for Transformer.<\/p>

Balaji Engineers:<\/b>
Execute the jobs for oil filtration , attending the Oil leakages in Transformer and also replacement of Transformer . Also we deal with new transformers in Distirbution as well as power transformer of Reputed Brand In India Such as Voltamp , Transformer and Rectifier , Hitachi ,CGL etc<\/p>

<\/i>\u00a0Bushing Inspection:<\/b>
Check for cracks, leaks, and contamination. Clean bushings and tighten connections as needed.<\/p>

<\/i>\u00a0Cooling System:<\/b>
Inspect and maintain the cooling system, including radiators, fans, and pumps, to prevent overheating.<\/p>

<\/i>\u00a0Thermal Imaging:<\/b>
Use infrared thermography to detect hot spots and potential failures.<\/p>

<\/i>\u00a0OLTC Servicing:<\/b>
In daily working of transformer OLTC plays avery Important role . We need to Execute OLTC servicing in every 6 Months span for its proper operation and avoid major fault in OLTC equipment.<\/p>

Balaji Engineers:<\/b>
Execute the jobs for Serving OLTC of Transformer. We have specialised team to attend servicing and overhauling of OLTC in transformer
What is Long form of OLTC ? Answer : On Load Tap Changer<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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2. Isolator Disconnector Switch :<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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Is the most Important equipment in the switch gear because healthiness of Isolator depends is directly depend upon to On and Off of power supply. In case of Isolator stacked in Isolator fixed contact and Isolator Moving contact , it is difficult to On or Off the power supply of High voltage and extra High voltage.
Please refer this Video Link for Isolator Maintenance<\/p>

Video Link:
https:\/\/youtu.be\/bx4JWx29qn0?si=P-Pay2BuHhQ8CGsu<\/a>
controls, protects, and isolates electrical equipment, making its maintenance crucial for system stability<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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<\/i>\u00a0Visual Inspection:\u00a0<\/b>Regularly inspect for signs of wear, corrosion, or damage.

<\/i>\u00a0Contact Cleaning:\u00a0<\/b>Clean and lubricate contacts to ensure good electrical conductivity.

\u00a0Operational Testing: <\/b>Conduct functional tests to verify the operation of circuit breakers and other components.<\/p>

<\/i>\u00a0Insulation Testing:\u00a0<\/b>Use a mega ohm meter to check the insulation resistance of switchgear components.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Video Link - https:\/\/youtu.be\/Rkvty3d2YBs?si=iVJeGXv8eVlAQigR<\/a><\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Balaji Engineers Isolators Pvt Ltd provides Isolator Services in<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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  • \n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\tIsolator Alignment Services<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t
  • \n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\tSubstation Isolator servicing<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t
  • \n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\tIsolator overhauling services<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t
  • \n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\tIsolator spare part replacement<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t
  • \n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\tIsolator erection in India<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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    • \n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\tIsolator Earth blade adjustment services<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t
    • \n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\tEMC of substation Isolators<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t
    • \n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\tIsolator Disconnector installation services in Indi<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t
    • \n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\tIsolator interlocking services<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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      3. Circuit breakers<\/h3>

      Circuit breakers are critical safety devices that interrupt current flow in case of faults.<\/p>

      <\/i>\u00a0Mechanical Operation:<\/b>\u00a0Test the mechanical operation of breakers to ensure they can open and close properly.<\/p>

      <\/i>\u00a0Contact Resistance:<\/b>\u00a0Measure contact resistance to detect wear or damage.<\/p>

      <\/i>\u00a0Insulation Integrity:<\/b>\u00a0Perform insulation resistance tests to identify potential insulation failures.<\/p>

      <\/i>\u00a0Lubricarion:<\/b>\u00a0Lubricate moving parts to prevent mechanical failure.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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      Balaji Engineers Isolators Pvt Ltd provides Isolator Services in India
      <\/i>\u00a0VCB Servicing in India.
      <\/i>\u00a0SF6 Servicing in India.<\/b><\/p>

      Balaji Enigneers having technical team for VCB servicing , SF6 Servicing of 11kV, 22kV ,33kV,66kV,110kV,132kV,220kV voltage level in substation. Balaji Engineers is also dealers of spare parts of VCB and SF6 breaker of ABB Make , Siemens Make , Schneider Make , Alstom Make , Bhel Make , CGL Make , Crompton greaves make, Areva Make , GE Make<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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      4. Protective Relays<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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      Protective Relays<\/b>\u00a0monitor electrical parameters and initiate circuit breaker operation during faults.<\/p>

      <\/i>\u00a0Calibration :<\/b>\u00a0Regularly calibrate relays to ensure accurate operation.<\/p>

      <\/i>\u00a0Functional Testing :<\/b>\u00a0Conduct functional tests to verify that relays respond correctly to simulated faults.<\/p>

      <\/i>\u00a0Firmware Updates :<\/b>\u00a0Keep relay firmware updated to the latest version for improved performance and security.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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      5.Batteries and Chargers<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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      Batteries and chargers provide backup power to substation control systems.<\/p>

      <\/i>\u00a0Battery Testing :<\/b>\u00a0Perform regular voltage and capacity tests on batteries.<\/p>

      <\/i>\u00a0Charger Inspection :<\/b>\u00a0Check charger output and functionality.<\/p>

      <\/i>\u00a0Connection Checks :<\/b>\u00a0Inspect battery connections for corrosion and ensure tightness.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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      6. Control Systems<\/h3>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
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      Control systems<\/b>\u00a0manage the operation of substation equipment and ensure proper coordination.<\/p>

      <\/i>\u00a0Software Updates :<\/b>\u00a0Regularly update software and firmware to enhance functionality and security.<\/p>

      <\/i>\u00a0Backup Systems :<\/b>\u00a0Test and verify backup power systems.<\/p>

      <\/i>\u00a0Communication Links :<\/b>Ensure that communication links between control systems and field devices are functioning properly.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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      7. Busbars and Connectors<\/h3>

      Busbars and connectors\u00a0<\/b>are critical for distributing electricity within the substation.<\/p>

      <\/i>\u00a0Visual Inspection :<\/b>\u00a0Look for signs of wear, corrosion, or damage.<\/p>

      <\/i>\u00a0Thermal Imaging :<\/b>\u00a0Use infrared thermography to detect hot spots that indicate loose or degraded connections.<\/p>

      <\/i>\u00a0Tightening and Cleaning :\u00a0<\/b>Regularly tighten and clean connections to maintain good conductivity.<\/p>

      Balaji Enigneers is a Busbar Manufacturers in India and execution in Design \/ Execution \/alteration \/ replacement \/ Busbar in Powder coted or in Galvanised form . Balaji Engineers having technical sound team who can erection all type of bus bar in Industries.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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      8. Grounding Earthing Systems<\/h3>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
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      \u00a0Grounding systems<\/b>\u00a0are vital for safety and the proper operation of protective devices.<\/p>

      <\/i>\u00a0Ground Resistance Testing :<\/b>\u00a0Perform regular ground resistance tests to ensure low-resistance grounding paths.<\/p>

      <\/i>\u00a0Inspection :<\/b>\u00a0Visually inspect grounding conductors and connections for signs of wear, corrosion, or damage.<\/p>

      <\/i>\u00a0Connection Integrity :<\/b>\u00a0Verify the integrity of all grounding connections and rectify any issues.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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      Perfect earth electrode is a Earthing Brand owned by Balaji Engineers<\/b><\/p>

      GI and CI Electrode manufactures in India.<\/b><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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      Best Practices for Substation Maintenance :-<\/h3>

      <\/i>\u00a0Preventive Maintenance :<\/b>\u00a0Implement a schedule for routine inspections and servicing based on manufacturer recommendations and industry standards.<\/p>

      <\/i>\u00a0Condition-Based Maintenance :<\/b>\u00a0Utilize advanced monitoring technologies like infrared thermography and dissolved gas analysis to assess equipment condition in real-time.<\/p>

      <\/i>\u00a0Training and Safety :<\/b>\u00a0Ensure that maintenance personnel are well-trained and adhere to strict safety protocols. Use personal protective equipment (PPE) and follow lockout\/tagout (LOTO) procedures.<\/p>

      <\/i>\u00a0Documentation and Record-Keeping :<\/b>\u00a0Maintain detailed records of all maintenance activities. This data is invaluable for tracking equipment performance and planning future maintenance.<\/p>

      <\/i>\u00a0Use of Technology :<\/b>\u00a0Leverage modern tools and technologies, such as drones for visual inspections and digital twins for simulation and analysis, to enhance maintenance efficiency.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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      Conclusion<\/h3>

      Effective maintenance of substation equipment is essential for the reliability, efficiency, and safety of the power distribution network. By following a comprehensive maintenance plan that includes preventive and condition-based strategies, ensuring proper training and safety, and utilizing advanced technologies, substations can operate optimally and prevent costly failures. Remember, a well-maintained substation is the backbone of a reliable power supply.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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      Balaji Engineers is a leading electrical EPC (Engineering, Procurement, and Construction) contractor in India, boasting 20 years of extensive experience in handling high voltage (HV) and extra-high voltage (EHV) projects, ranging from 11 kV to 220 kV. The company has a skilled technical team dedicated to executing the maintenance of substation equipment and all types of isolators of any make.

      Balaji Engineers Isolators Private Limited is a leading manufacturer of isolator disconnectors in India. With two decades of rich experience in the electrical industry, the company specializes in producing high-quality isolators for high voltage (HV) and extra-high voltage (EHV) applications ranging from 11 kV to 220 kV. Balaji Engineers Isolators Private Limited also excels in providing comprehensive maintenance services for substation equipment and various types of isolators, ensuring reliable performance and safety.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

      Substations are vital hubs in the power distribution network, playing a crucial role in managing and distributing electricity from power […]<\/p>\n","protected":false},"author":1,"featured_media":3111,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3110","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/www.balajiengineers.in\/blog\/wp-json\/wp\/v2\/posts\/3110","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.balajiengineers.in\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.balajiengineers.in\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.balajiengineers.in\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.balajiengineers.in\/blog\/wp-json\/wp\/v2\/comments?post=3110"}],"version-history":[{"count":53,"href":"https:\/\/www.balajiengineers.in\/blog\/wp-json\/wp\/v2\/posts\/3110\/revisions"}],"predecessor-version":[{"id":3174,"href":"https:\/\/www.balajiengineers.in\/blog\/wp-json\/wp\/v2\/posts\/3110\/revisions\/3174"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.balajiengineers.in\/blog\/wp-json\/wp\/v2\/media\/3111"}],"wp:attachment":[{"href":"https:\/\/www.balajiengineers.in\/blog\/wp-json\/wp\/v2\/media?parent=3110"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.balajiengineers.in\/blog\/wp-json\/wp\/v2\/categories?post=3110"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.balajiengineers.in\/blog\/wp-json\/wp\/v2\/tags?post=3110"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}