SK Enterprises Electrical Services
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SK Enterprises Electrical Services

Professional high-voltage engineering hub specializing in 11KV to 66KV infrastructure. ISO-certified diagnostics across Delhi NCR and major North India cities.

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Expertise

  • Vacuum Circuit Breaker (VCB) Services
  • Air Circuit Breaker (ACB) Services
  • Transformer Services
  • HT Panel Services
  • LT Panel Services
  • Relay Calibration & Testing
  • PT & CT Services
  • Transformer Oil Filtration & Dehydration
  • Cable End Termination

Engineering Hub

  • +91 99107-88638
  • info@skenterprises.com
  • Industrial Area, Phase 2 New Delhi, India - 110020

© 2026 SK Enterprises. Synchronized Diagnostics.

    Relay Calibration & Testing — All Voltage Levels testing and maintenance by SK Enterprises
    All Voltage Levels Systems
    Direct Engineering Access

    Relay Calibration & Testing

    IDMT relay calibration, secondary and primary injection testing, numerical relay programming, and protection scheme verification across Delhi NCR and North India.

    Technical Definition

    What is Relay Calibration & Testing?

    “Relay Calibration is the precision adjustment of protection relays using secondary injection tests to ensure that circuit breakers trip accurately according to predefined time-current curves.”

    Service Overview

    SK Enterprises calibrates and tests protection relays of every generation—electromechanical, static, and numerical. Services include IDMT curve verification by secondary injection, full-loop primary injection, directional and differential element testing, numerical relay programming, and protection coordination checks. Based in New Delhi NCR with North India coverage and pan-India support on request, we make sure your breakers trip exactly when they should.

    IDMT relay calibration
    Secondary injection testing
    Primary injection testing
    Functional tests
    Numerical relay programming
    Protection scheme verification

    Engineering Specifications

    01Pick-up current measurement
    02Time-current characteristic verification
    03Phase angle testing
    04Directional element testing
    05Auxiliary relay testing
    06Trip circuit verification

    Standard Testing Protocol

    OEM Brands We Service

    Our engineers are trained across all major switchgear makes, so a single team can maintain your entire mixed-OEM fleet.

    ABB
    Siemens
    Schneider Electric
    GE / Alstom
    L&T
    Ashida
    ERL (Easun Reyrolle)

    Industries We Serve

    Industrial substations and manufacturing plants
    Utilities and captive power plants
    Infrastructure and metro projects
    Commercial complexes and data centers
    Renewable energy plants

    Annual Maintenance Contracts (AMC)

    Our relay testing AMC includes periodic secondary injection verification of every relay in your protection scheme, settings backup and documentation, trip circuit checks, and re-coordination support after load or network changes.

    Service Coverage

    Headquartered in New Delhi NCR, SK Enterprises performs relay testing and calibration using portable secondary injection kits across Delhi, Noida, Greater Noida, Ghaziabad, Gurgaon, Faridabad, Chandigarh, Mohali, Panchkula, Jaipur, Lucknow, Kanpur, Dehradun, Haridwar, Roorkee, Meerut, Agra, Ludhiana, Jalandhar, Amritsar, and Jammu, with pan-India industrial site support on request.

    Tier 1 — Delhi NCR

    Delhi
    Noida
    Greater Noida
    Ghaziabad
    Gurgaon
    Faridabad

    Tier 2 — Priority cities

    Chandigarh
    Mohali
    Panchkula
    Jaipur
    Lucknow
    Kanpur

    Tier 3 — Extended North India

    Dehradun
    Haridwar
    Roorkee
    Meerut
    Agra
    Ludhiana
    Jalandhar
    Amritsar
    Jammu

    Frequently Asked Questions

    Request Quote

    Technical site assessment booked within 4hrs of form submission.

    Typical response time: within 24 hours.

    Related Solutions

    PT & CT ServicesVacuum Circuit Breaker (VCB) ServicesAir Circuit Breaker (ACB) Services