- B-58, Sector E Aliganj, Lucknow, Uttar Pradesh – 226024 , India
- info@tajallitech.com
Welcome To Tajalli Tech Pvt Ltd
VCB Maintenance And Testing
VCB Testing and Maintenance Services
At Tajalli Tech. Pvt. Ltd, we understand the critical importance of maintaining and testing Vacuum Circuit Breakers (VCBs) to ensure the safety, reliability, and efficiency of electrical systems. With our comprehensive VCB testing and maintenance services, we help businesses across industries maintain optimal performance and compliance with industry standards.
Our VCB Testing and Maintenance Services Include:
- Routine Maintenance: Our experienced technicians perform routine maintenance checks on VCBs to identify and address any issues before they escalate. This includes inspecting contacts, mechanisms, insulation, and other components for wear, corrosion, or damage.
- Functional Testing:We conduct functional testing of VCBs to verify their operational performance under normal operating conditions. This ensures that the circuit breakers can effectively interrupt currents and protect electrical systems from overloads and faults.
- Insulation Resistance Testing:Insulation resistance testing is crucial for assessing the insulation integrity of VCBs. We perform insulation resistance tests to identify any degradation or breakdown in insulation, helping prevent potential electrical failures or hazards.
- Contact Resistance Testing:Contact resistance testing is essential for evaluating the electrical connections within VCBs. By measuring the resistance at the contacts, we can detect and rectify any loose connections or deterioration that may affect the circuit breaker’s performance.
- Trip and Close Coil Testing:We test the trip and close coils of VCBs to ensure their proper functioning during circuit breaker operation. This includes checking the electrical continuity, insulation resistance, and response time of the coils to command signals.
- Oil and Gas Analysis:For oil-filled VCBs, we perform oil and gas analysis to assess the condition of insulation oil and detect any presence of moisture, gases, or contaminants. This helps in determining the overall health and lifespan of the circuit breaker.
Why Choose Our VCB Testing and Maintenance Services?
- Expertise: Our team consists of skilled technicians with extensive experience in testing and maintaining VCBs of various makes and models.
- Comprehensive Approach: We follow industry best practices and standards to ensure thorough testing and maintenance of VCBs, addressing both electrical and mechanical aspects.
- Safety Compliance: Our services help clients comply with safety regulations and standards, minimizing the risk of electrical accidents and ensuring workplace safety.
- Minimized Downtime: By identifying and resolving potential issues proactively, we help minimize downtime and disruptions to your operations.
- Cost Savings: Regular testing and maintenance of VCBs can extend their lifespan, reduce the risk of unexpected failures, and optimize energy efficiency, resulting in cost savings over time.
Schedule Your VCB Testing and Maintenance Today!
Ensure the reliability and safety of your electrical systems with our professional VCB testing and maintenance services. Contact us today to schedule an appointment with our team of experts.
VCB service in Lucknow and across UP
VCB maintenance and testing for HT breakers up to 33 kV
A vacuum circuit breaker is the switch that protects your HT supply and transformer. Worn contacts, a weak operating mechanism or a leaking vacuum bottle can stop it from clearing a fault. Our engineers test and service indoor and outdoor VCBs on site and give you a written report of every reading.
We work on panel-mounted and outdoor VCBs of all major makes, together with their protection relays, CTs and control wiring.
What our VCB service includes
- Visual inspection and cleaning of the breaker and panel
- Operating mechanism check and lubrication
- Closing and tripping coil and spring charging motor check
- Contact resistance (micro-ohm) test
- Insulation resistance test
- Breaker timing test (close, open, close-open)
- Vacuum interrupter integrity check (HV withstand test)
- Contact erosion and wipe check where the design allows
- Protection relay and trip circuit check
- Interlocks, racking and earth switch check
- Written test report with readings and advice
How often should a VCB be tested?
| Situation | Recommended action |
|---|---|
| Normal duty, clean substation | Service and test once a year |
| Frequent switching (capacitor banks, motors) | Every 6 months, plus an operation count check |
| After clearing a heavy fault | Inspect and test before putting it back in service |
| New or relocated breaker | Pre-commissioning tests before charging |
How we work
1
Survey
We note make, rating, operations count and condition.
2
Shutdown plan
Work is planned with your team and the supply authority if needed.
3
Service and test
Mechanism care, contact resistance, IR and timing tests.
4
Report
Readings, photos and our recommendations.
Why Tajalli Tech
Since 2016Class-A licensed electrical contractor based in Aliganj, Lucknow.
Calibrated test kitsOur own instruments, with a written report after every job.
ISO 9001:2015Documented quality process, and a Schneider Electric EcoXpert partner for LV services.
Questions
Do you test VCBs on site?
Yes. All tests are done on site with our portable test kits during a planned shutdown.
What does a contact resistance test show?
It measures the resistance across the closed contacts in micro-ohms. A high value means worn or dirty contacts that will heat up under load.
What is a breaker timing test?
It measures how fast the breaker closes and opens. Slow or uneven operation means the mechanism needs attention before it fails during a fault.
Can you service the protection relay as well?
Yes. We test protection relays by secondary injection and check the trip circuit, so the breaker and relay work together.
Book a VCB test
Tell us the number of breakers, their rating and your location. We will plan the shutdown and send a quote.
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