PULS ECB: Efficient Electrical Protection for Critical Systems

𝗣𝗿𝗲𝗰𝗶𝘀𝗶𝗼𝗻 𝗱𝗼𝘄𝗻 𝘁𝗼 𝘁𝗵𝗲 𝗺𝗶𝗰𝗿𝗼-𝗼𝗵𝗺 – 𝘄𝗵𝘆 𝗶𝘁 𝗺𝗮𝘁𝘁𝗲𝗿𝘀 In modern installations – from transformers to heavy-duty industrial switchgear – ultra-low resistances (in the micro-ohm range) cannot be measured with a standard multimeter. Poor connections cause heat, energy loss, or even failures. Inaccurate measurements are simply not an option. 𝗧𝗵𝗮𝘁’𝘀 𝘄𝗵𝘆 𝘆𝗼𝘂 𝘂𝘀𝗲 𝗮 𝗺𝗶𝗰𝗿𝗼-𝗼𝗵𝗺𝗺𝗲𝘁𝗲𝗿. With high test currents and resolutions down to 0.1 µΩ, you get reliable results—free from the influence of test leads or contact resistance. 𝗪𝗵𝗲𝗻 𝘁𝗼 𝘂𝘀𝗲 𝗶𝘁? · Checking cable connections · Testing busbars, switches, and transformers · Asset management & preventive maintenance 𝗪𝗵𝗮𝘁 𝗺𝗮𝗸𝗲𝘀 𝗺𝗶𝗰𝗿𝗼-𝗼𝗵𝗺𝗺𝗲𝘁𝗲𝗿𝘀 𝘂𝗻𝗶𝗾𝘂𝗲? · High test currents – from 10 A up to 200 A · Extreme resolution – down to 0.1 µΩ · Internal storage & printer (depending on model) · Options such as Both Side Grounded mode and Modbus integration With the right micro-ohmmeter, you work with confidence and precision, reduce downtime, and increase the reliability of your installations. A smart investment for every professional aiming for simplicity and accuracy. Precision in the micro-ohm: essential for reliable measurements. 𝗖𝗵𝗲𝗰𝗸 𝗼𝘂𝗿 𝗼𝘃𝗲𝗿𝘃𝗶𝗲𝘄: https://lnkd.in/evRt7crx #TestEquipment #Precision #IndustrialMaintenance #AssetManagement

🚨 When a $50 Sensor Failure Caused a $35,000 Breakdown 🚨 What seemed like a minor oil leak in a bearing housing led to a full-scale failure in a power plant’s generator cooling system, all because an RTD (Resistance Temperature Detector) silently failed. Here’s what happened: 🔹 The RTD, embedded in a sleeve bearing, was supposed to monitor temperature and trigger alarms if overheating occurred. 🔹 Oil seeped into the RTD housing due to a degraded seal — shorting the sensor and freezing the reading at a “normal” 70°C. 🔹 The actual bearing temp shot past 120°C, unnoticed. With no alarms triggered, the bearing overheated, seized, and damaged the shaft. 🔹 The result? ❌ Cooling fan failure, ⚠️ 4 days of downtime, and 💸 $35K in repairs and losses. Key Lessons: A "stable" sensor reading isn't always a good thing. Flatlined signals can hide failures. Use oil-tight RTDs in bearing applications where oil ingress is possible. Implement SCADA logic that flags lack of signal change, not just threshold breaches. 🔧 A tiny sensor failure caused massive ripple effects, but it could have been caught early. 📊 Are you relying too much on a sensor design with no leakage protecting for critical monitoring? #PredictiveMaintenance #ReliabilityEngineering #RTD #Bearings #IndustrialAutomation #SCADA #AssetManagement #CaseStudy #MaintenanceMatters #Technoinstruments #leakeproof #BTD #Accuratetemperaturesensing #lubeloc #bestsolution #powerindustry #boostingproductivity #zerodowntime

✅✅Current Transformer (CT) Ratio Calculation- For meters, relays, and protection systems, a Current Transformer (CT) is used to reduce high current values to a safer, quantifiable level. * Formula for CT Ratio: CT \, Ratio = \frac{Primary \, Current}{Secondary \, Current} Example: If a CT has a primary current of 1000 A and a secondary current of 5 A, CT \, Ratio = \frac{1000}{5} = 200:1 Key Points:- For measuring/protection devices. The CT ratio converts high current values into standard 1A or 5A values. CT accuracy is essential for relay protection. CT should always be chosen based on load current plus potential growth. #ElectricalEngineering #IndustrialAutomation #StarDeltaStarter #MotorControl #EngineeringLearning #LinkedInGrowth #ControlSystems #CareerinEngineering #reallifestardeltastarter #Electricalengineering #MCR

Prok DV’s Earth Leakage Relay (ELR) excels in early fault detection through programmable trip thresholds ranging from 30 mA to 12 A, enabled by Core‑Balance CT (CBCT) sensing. This microcontroller-based relay continuously monitors leakage currents using true‑RMS measurement and offers instant feedback through its 2‑line LCD display, showing both set and measured values. The device is immune to harmonics and transients and features a self-test/reset facility along with trip-circuit failure indication, ensuring your motors, transformers, feeders, or IT cabinets are shielded before a minor fault becomes a major outage. These features translate into real-time reliability for industrial and institutional clients. Because it logs faults with timestamps, supports optional RS‑485 Modbus for remote monitoring, and offers high resistance to harsh conditions, the ELR minimizes downtime, aids compliance, and enables more predictable maintenance planning. In sectors like steel, cement, power generation, or chemical plants, where uptime and safety are non-negotiable, this level of diagnostic precision makes all the difference. When you source Prok DV’s ELR through Eleczo, you don’t just get a component, you gain a partner. With ready stock, competitive volume pricing, layout and application support, and prompt nationwide delivery, Eleczo simplifies procurement while ensuring technical clarity at every step. Together, we ensure your electrical distribution panels are both safe and smart—delivered on time and backed by trusted expertise. #ProkDV #EarthLeakageRelay #ELR #CoreBalanceCT #CBCT #TrueRMS #IndustrialElectricals #ElectricalSafetySolutions #MotorProtection #TransformerProtection #FeederProtection #ITCabinetSafety #PowerDistribution #IndustrialAutomation #ElectricalReliability #DowntimeReduction #RS485 #ModbusMonitoring #PanelBuilders #ElectricalContractors #Eleczo #ElectricalProcurement #SmartElectricals #IndustrialSafety #ElectricalSolutionsIndia

🔌 Current Transformer (CT) Ratio Calculation- For meters, relays, and protection systems, a Current Transformer (CT) is used to reduce high current values to a safer, quantifiable level. ⚙️ Formula for CT Ratio: CT \, Ratio = \frac{Primary \, Current}{Secondary \, Current} 👉 Example: If a CT has a primary current of 1000 A and a secondary current of 5 A, CT \, Ratio = \frac{1000}{5} = 200:1 🎯 Key Points:- ✅ For measuring/protection devices. ✅ The CT ratio converts high current values into standard 1A or 5A values. ✅ CT accuracy is essential for relay protection. ✅ CT should always be chosen based on load current plus potential growth. #ElectricalEngineering #IndustrialAutomation #StarDeltaStarter #MotorControl #EngineeringLearning #LinkedInGrowth #ControlSystems #CareerinEngineering #reallifestardeltastarter #Electricalengineering #MCB #Control #PanelDesign #PanelDesign #IndustrialAutomation #ProtectionDevices #PowerSystem #PowerSystemEngineering #EEE #Etap #MCB #ProtectionDevice #Switchgears

A common Problem we have in VFD's are Phase loss and why does it display in VFD LCPS 🔌 Understanding Phase Loss in VFDs (Variable Frequency Drives) Phase loss, sometimes called input phase failure, is a common issue in industrial drives. It occurs when one of the three input supply phases (R, Y, B) is missing, weak, or unstable. Since VFDs rely on balanced three-phase input to produce a stable DC bus and deliver smooth power to the motor, any imbalance or loss directly affects performance. ⚡ What Happens During Phase Loss? The VFD rectifies incoming AC to DC. With one phase missing, it can still operate using the remaining two phases, but: ·      Current in the remaining phases rises sharply → overheating risk. ·      DC bus voltage becomes unstable → leading to trips or derating. ·      Motor torque becomes inconsistent → causing process interruptions. ·      To protect the motor and itself, the VFD triggers a Phase Loss Fault or Alarm. 🔍 Common Causes of Phase Loss ·      Power Supply Issues – blown fuses, tripped breakers, or utility phase imbalance. ·      Loose/Damaged Connections – weak terminal tightening, oxidation, or cable damage. ·      Upstream Equipment – faulty MCCB/MCB, contactors, or transformer winding issues. ·      VFD Internal Faults – defective rectifier or input phase detection circuit. ·      Load Imbalance – excessive unbalanced current drawn by the motor in rare cases. ✅ Best Practices to Prevent Phase Loss ·      Regularly check and tighten input terminals. ·      Inspect supply fuses and breakers during maintenance. ·      Monitor input voltage balance (keep within ±5%). ·      Use proper surge and phase-monitoring protection relays. ·      Service the VFD if alarms persist despite healthy supply. #Industrial automation #VFD

🔧 Your control panel looks fine… but inside, aging components could be hurting reliability. Here’s a basic health check cycle that many skip — but shouldn’t: 🕑 Every 6–12 Months: Check loose terminals Blow out dust & debris Scan for overheating signs (discoloration, smell) 🗓 Every 2–3 Years: Replace aging relays/contactors Test backup power & surge protection 🛠 Every 5+ Years: Re-evaluate power distribution & I/O expansion needs Check for obsolete PLC or communication modules 💡 Tip: Maintenance plans reduce downtime and help justify upgrade budgets to management. 👉 What’s the oldest working panel you've seen still running today? #ControlPanelMaintenance #IndustrialAutomation #SmartFactoryASEAN #ElectricalInspection #PLC

urrent Transformer (CT) usually has separate cores Metering Core → designed for accuracy at low current (up to rated load), usually Class 0.2, 0.5, or 1. It saturates earlier to protect meters. Protection Core → designed for accuracy during faults, usually Class 5P, 10P, or PX. It remains linear up to high multiples of rated current to ensure relay operation. Using Metering Core for Protection Metering CT saturates at ~1.2 to 2 × rated current. During a fault (say 10 × rated current), the CT will saturate heavily. The protection relay receives distorted or reduced current, causing: Delayed tripping Failure to trip → major safety hazard Wrong coordination Very risky — never recommended. Using Protection Core for Metering Protection CT has higher saturation limit and lower accuracy in normal range. At normal load (say 50–100% of rated), error is higher (could be ±3–5%).

"Understanding Contactor and Thermal Overload Relay Components"- 👉👉👉A contactor and thermal overload relay are essential devices in controlling electrical circuits. The image highlights key components and their functions, ensuring efficient operation and protection. Below is an overview of their parts and working principles. 👉👉👉The contactor body serves as the main structure, housing the switching mechanism. It includes normal open and normal close contacts, which determine the circuit's state when de-energized. The input supply (R, Y, B) provides power to the system, while the contactor coil point energizes the contactor to close or open the circuit. contactor make and normal open/normal close points facilitate the connection or disconnection of the load. 👉👉👉The relay body, part of the thermal overload relay, monitors current flow. It features an ampere set point to adjust the protection level, ensuring the system trips if the current exceeds safe limits. Normal open and normal close contacts in the relay control auxiliary circuits. The reset function allows manual or automatic restoration after a trip, with auto/manual settings for user preference. The stop button halts operation, enhancing safety. Motor terminals connect the output supply to the load. 👉👉👉In operation, the contactor coil is energized via a control circuit, closing the main contacts to supply power to the motor. The thermal overload relay protects against overcurrent by heating up and tripping the circuit if the current exceeds the set ampere value, preventing motor damage. Once the fault is cleared, the reset restores normal function. ⭐⭐⭐Key Insights into Operation- 1️⃣ The contactor coil activates to connect the power supply. 2️⃣ Normal open contacts close when the coil is energized. 3️⃣ Normal close contacts open upon coil energization. 4️⃣ The thermal relay monitors current to detect overloads. 5️⃣ Ampere set point adjusts the trip threshold. 6️⃣ Reset restores the system after a fault. 7️⃣ Auto/manual mode offers flexibility in operation. 8️⃣ Stop button ensures immediate circuit interruption. 9️⃣ Motor terminals deliver power to the load. #ElectricalEngineering #CircuitProtection #Automation #EngineeringBasics #TechnicalKnowledge #PowerSystems #IndustrialAutomation

"Understanding Contactor and Thermal Overload Relay Components"- 👉👉👉A contactor and thermal overload relay are essential devices in controlling electrical circuits. The image highlights key components and their functions, ensuring efficient operation and protection. Below is an overview of their parts and working principles. 👉👉👉The contactor body serves as the main structure, housing the switching mechanism. It includes normal open and normal close contacts, which determine the circuit's state when de-energized. The input supply (R, Y, B) provides power to the system, while the contactor coil point energizes the contactor to close or open the circuit. contactor make and normal open/normal close points facilitate the connection or disconnection of the load. 👉👉👉The relay body, part of the thermal overload relay, monitors current flow. It features an ampere set point to adjust the protection level, ensuring the system trips if the current exceeds safe limits. Normal open and normal close contacts in the relay control auxiliary circuits. The reset function allows manual or automatic restoration after a trip, with auto/manual settings for user preference. The stop button halts operation, enhancing safety. Motor terminals connect the output supply to the load. 👉👉👉In operation, the contactor coil is energized via a control circuit, closing the main contacts to supply power to the motor. The thermal overload relay protects against overcurrent by heating up and tripping the circuit if the current exceeds the set ampere value, preventing motor damage. Once the fault is cleared, the reset restores normal function. ⭐⭐⭐Key Insights into Operation- 1️⃣ The contactor coil activates to connect the power supply. 2️⃣ Normal open contacts close when the coil is energized. 3️⃣ Normal close contacts open upon coil energization. 4️⃣ The thermal relay monitors current to detect overloads. 5️⃣ Ampere set point adjusts the trip threshold. 6️⃣ Reset restores the system after a fault. 7️⃣ Auto/manual mode offers flexibility in operation. 8️⃣ Stop button ensures immediate circuit interruption. 9️⃣ Motor terminals deliver power to the load. #ElectricalEngineering #ControlSystems #CircuitProtection #Automation #EngineeringBasics #TechnicalKnowledge #PowerSystems #IndustrialAutomation