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How to Do Troubleshooting in Electrical Circuits?

Learn how to troubleshoot electrical circuits by identifying faults, checking connections, and using basic tools for safe and effective diagnosis.

Electrical Circuits में Troubleshooting कैसे करें?

Troubleshooting is the process of identifying and resolving faults or malfunctions in an electrical circuit. It involves a systematic approach to detect issues like short circuits, open circuits, overloads, or ground faults. Whether you're working in an industrial setup, a commercial building, or a residential space, following a step-by-step method ensures safety and accuracy.

Hindi- Troubleshooting का मतलब होता है किसी electrical circuit में आए faults या malfunction को पहचानकर ठीक करना। चाहे वो short circuit हो, open circuit या overload, एक step-by-step तरीका अपनाकर आप fault को सुरक्षित ढंग से पहचान सकते हैं।

✅ Step-by-Step Troubleshooting Process (चरणबद्ध तरीके से Troubleshooting कैसे करें):

1. Safety First (सबसे पहले सुरक्षा):

Before touching any electrical component, turn off the main power supply. This is the most critical step to avoid electric shock or fire hazards. Always wear Personal Protective Equipment (PPE) such as: Insulated gloves Safety shoes Safety goggles Flame-resistant clothing (especially in industrial environments) Also, ensure the area is dry and free from water or moisture. Use insulated tools and keep a fire extinguisher nearby.

Hindi- सबसे पहले main power supply को बंद करें। PPE जैसे gloves, safety shoes, goggles पहनें और सुनिश्चित करें कि काम करने वाली जगह सूखी हो।

2. Identify the Problem (समस्या को पहचानें):

Start by observing the symptoms. Common signs of electrical faults include: No power in the circuit MCB (Miniature Circuit Breaker) tripping repeatedly Burning smell from switches or wires Visible sparking or flickering lights Sudden shutdown of appliances Ask questions like: When did the issue start? Was there any recent change in load or wiring? Are multiple devices affected or just one?

Hindi- लक्षण पहचानें जैसे – Power supply नहीं आना, MCB का बार-बार trip होना, जलने की smell, या sparking। यह जानने की कोशिश करें कि समस्या कब शुरू हुई और किन उपकरणों पर असर पड़ा है।

3. Visual Inspection (दृश्य जांच करें):

Carefully inspect the circuit components. Look for: Loose or burnt wires Melted insulation Damaged switches, sockets, or connectors Signs of overheating like discoloration or smoke marks Rodent damage or corrosion in wires Use a flashlight to check inside junction boxes and panels. Sometimes, a simple loose connection can cause major issues.

Hindi- देखें कहीं कोई wire loose या burn तो नहीं है, Switch, socket, या connector में damage तो नहीं है, Overheating के कोई निशान तो नहीं हैं।

4. Use a Multimeter (Multimeter से जांच करें):

A multimeter is a vital tool for electrical troubleshooting. It helps measure: Voltage – to check if power is reaching the circuit Current – to detect overloads Resistance – to identify broken paths Continuity – to ensure the circuit is complete Steps: Set the multimeter to the correct mode (AC/DC, ohms, etc.) Test across terminals, switches, and wires Compare readings with standard values If continuity is missing, it indicates a break in the circuit.

Hindi- अलग-अलग points पर voltage, current, और resistance measure करें और circuit में continuity check करें। Multimeter से सही mode पर जांच करना जरूरी है।)

5. Isolate the Faulty Section (खराब हिस्से को अलग करें):

Divide the circuit into smaller sections. This helps narrow down the fault location. For example: If a room’s lights are not working, check the switchboard first, then the wiring, then the bulb holder. In industrial setups, isolate machines one by one to find the faulty unit. Use test lamps or multimeter probes to check each segment.

Hindi- Circuit को छोटे-छोटे हिस्सों में बांटकर test करें। इससे fault location का सही पता चलता है और समय की बचत होती है।)

6. Check Protection Devices (Protection Devices की जांच करें):

Protection devices are designed to prevent damage during faults. Inspect: MCB – for overload or short circuit protection RCCB – for earth leakage protection Fuses – for overcurrent protection Relays – in control circuits If these devices trip frequently or show signs of damage, replace them with properly rated components. Also, check the rating of these devices to ensure they match the load requirements.

Hindi- MCB, RCCB, fuse, और relay को जांचें और अगर बार-बार trip हो रहे हैं या खराब हैं तो बदलें। सही rating का उपयोग करना जरूरी है।

7. Repair or Replace (मरम्मत या बदलाव):

Once the fault is identified: Tighten loose connections Replace burnt wires or damaged switches Use wires of correct gauge and insulation Ensure proper earthing and bonding Avoid temporary fixes like tape wrapping or bypassing fuses Always follow IS standards or IEC guidelines for electrical repairs.

Hindi- Loose connection को ठीक करें और faulty component बदलें। मरम्मत करते समय सही rated wire और fittings का उपयोग करें और temporary fixes से बचें।

8. Test the Circuit (Circuit की जांच करें):

After repairs: Turn on the power supply Observe the circuit for normal operation Check for overheating, noise, or abnormal behavior Monitor for at least 15–30 minutes in critical systems Use a thermal scanner or infrared thermometer to detect hidden heating issues.

Hindi- मरम्मत के बाद power supply चालू करें और जांच करें कि सब कुछ सही से चल रहा है या नहीं। Safety का पूरा ध्यान रखें और circuit को कुछ समय तक monitor करें।

⚠️ Common Electrical Faults: Here are some frequently encountered faults:

Short Circuit – When two wires (live and neutral) touch accidentally, causing high current flow (दो wires का गलती से आपस में जुड़ जाना)

Open Circuit – When the circuit is broken due to a disconnected wire or switch (Circuit का कट जाना या disconnection)

Overload – When more devices are connected than the circuit can handle (जरूरत से ज्यादा load लग जाना)

Ground Fault – When the live wire comes in contact with the earth or grounded surface (Live wire का earth से जुड़ जाना)

Each fault has different symptoms and risks. Identifying the type helps in choosing the right solution.

Conclusion (निष्कर्ष):

Electrical troubleshooting is a skill that combines technical knowledge, practical tools, and safety awareness. Whether you're a technician, engineer, or DIY enthusiast, always follow a systematic process to avoid hazards and ensure reliable repairs.

If you're unsure about any step, it's best to consult a qualified electrician or refer to technical manuals.

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