Arpit Saini’s Post

Compact Electrical Panel – Simple yet Efficient Design Recently, I worked on a low-voltage panel that is designed with simplicity and accuracy in mind. Though it contains only the essential components, the panel ensures reliable performance and precise measurement of load parameters. ⚡ Main Features: Main Distribution Board (MDB): Core power distribution unit Busbar System: Safe and efficient current distribution Digital Voltmeter & Ammeter: Real-time monitoring of voltage and current Voltage Selector Switch: Easy selection of R, Y, B phase voltage Ampere Selector Switch: Accurate current reading for each phase CT (Current Transformer) Connection: Provides safe and scaled input to the ammeter Meter to Selector Switch Connection: Ensures flexible and correct parameter readings #ElectricalEngineering #PowerDistribution #PanelDesign #MDB #Busbar #Voltmeter #Ammeter #SelectorSwitch #EngineeringDesign #IndustrialSolutions

this is the description of sunsimmulater parameters Pmax (Maximum Power): -591.45 W → The peak power output under test conditions. Your module is performing slightly above its nominal rating (good quality). Isc (Short Circuit Current):-14.60 A → Maximum current when output terminals are shorted (V = 0). Important for fuse/wire sizing. Voc (Open Circuit Voltage):-50.93 V → Maximum voltage when circuit is open (I = 0). Important for checking inverter max DC input. Ipm (Current at Maximum Power, Imp):-13.63 A → Current at the maximum power point (Pmax). Used in inverter MPPT design. Vpm (Voltage at Maximum Power, Vmp):-43.38 V → Voltage at the maximum power point. Also important for string sizing and MPPT compatibility. FF (Fill Factor):-79.51 % → Quality indicator of the solar cell/module. Good panels usually have 75–82%. Yours is very good. Rs (Series Resistance):-0.434 Ω → Internal resistance in the cell/interconnections. Lower is better. This value is within a healthy range. Rsh (Shunt Resistance):-2902 Ω → Leakage resistance across the cell. Higher is better. Your module has excellent Rsh → low leakage. #gautamsolar, #Quality ,#solarmanufacturing,#renewableenergy, #powergenration

The image shows a table with three columns titled "Volts (V)", "Amps (A)" and "Watts (W)". In the table, all voltage values are 220 V, while the current (Amperios) varies from 1 A to 9 A. The power (Vatios) is calculated using the basic electrical formula: \text{Power} (W) = \text{Voltage} (V) \times \text{Current} (A) Following this formula, power values increase in proportion with current. For example: 220 V × 1 A = 220 W 220 V × 2 A = 440 W 220 V × 3 A = 660 W And so on until it reaches 220 V × 9 A = 1980 W. This table is useful to understand the relationship between voltage, current and power in a 220V electrical circuit.

⚡ Voltage drop is the invisible enemy of stable power delivery Voltage drop occurs when electrical power is transmitted through a cable that is either too long or too thin. As current flows, the resistance in the wire causes part of the voltage to be “lost” along the way, leaving the load side with less voltage than the source. For example: A 12V power supply may deliver only 11V at the device if the cable is excessively long. This phenomenon is critical in power supply design, as excessive voltage drop can lead to unstable performance, overheating, or even device malfunction. That’s why professional power solution providers always consider cable length, wire gauge, and current demand to minimize voltage drop and ensure stable operation. 💡 At Powertron, we integrate this mindset into every adapter and power solution we design. By controlling voltage drop and optimizing stability, we help our partners achieve reliable performance in their devices — and that’s why they trust us.

Electrical Calculations • Connected load vs demand load • Lighting load (W/sq.m.) • Cable sizing (current carrying capacity, voltage drop) • Transformer & DG sizing thumb rules • Power factor basics.

How to size Zig zag Transformer for grounding? =) KVA rating or Short time rating of Transformer: Since the both winding act as as a primary winding the actual short time rating would be , KVA= primary side Line voltage X Neutral Current/ 3 as per IEEE C62.92.4 =) Continuous current rating of transformer: Generally we take 3% of allowable fault current though it. and in engineering practice the allowable fault current is 400A or 600A. Lets assume 600A. and primary voltage rating 33KV then KVA = 33 X 600X .003X 1.732= 1028 KVA =) Impedance selection: Total fault current considered is 600A. as it is 3 phase then single phase current is 600/3 =200A Now Z= (33*1000/1.732*200)= 95.26 Ohm/Phase. As per my knowledge. #electricaldesign #groundingtransformer #designengineer #powersystem IETP CENTER Power Projects

How to calculate DC voltage drop ? Here’s the answer… Formula: Voltage Drop (V) = 2 × L × I × R L = one-way cable length (m) I = current (A) R = cable resistance (Ω/m) Step-by-step: ● Measure length (L). One-way distance panels → inverter. Multiply by 2 for the return. ● Find current (I). Use Imp (current at max power) from the panel spec. ● Get resistance (R). Look up Ω/m for your cable size and material. ● Run the numbers. Plug L, I, R into the formula. Check the percentage. Voltage-Drop (%) = (Voltage Drop / Array Vmp) × 100 Keep DC circuits ≤ 2 % if you can. Example: L = 10 m (20 m round trip) I = 10 A (string Imp) R = 0.0028 Ω /m Array Vmp = 400 V Voltage Drop = 2 × 10 × 10 × 0.0028 = 0.56 V Voltage Drop (%) = 0.56 / 400 × 100 ≈ 0.14 % Quick tips: Use the correct Imp and resistance values—accuracy matters. Calculate cable length with your planning tool. Check local code for the max drop you’re allowed. Web Solar can help you easily calculate voltage drop in your project and plan cable placement and length. Try it now: https://websolar.cloud #solardesign #voltagedrop

💡 Looking for a low-cost inverter solution without complexity? The XC9702 from TOREX makes power design simple. 🚀 🔋 By leveraging step-down DC/DC technology, it efficiently generates inverting voltages from standard inputs (5V / 12V / 24V). ✅ Output range: -2.5V to -12V ✅ Compact, efficient, and cost-effective A smart way to meet inverter needs at a fraction of the cost. If you do not need to invert the same DC/DC can be used for 24V --> 5V as example creating the worlds smallest 60V 300mA DC/DC solution!

The distortion in the waveform in the load current of any nonlinear device causes similar changes in the voltage waveform relative to the harmonic impedance of the source network. This voltage distortion affects both the current and voltage for all other loads connected to that system. The common effects of such harmonic distortion are as follows: - Motors and generators - Transformers - Capacitors - Power cables - Electronic equipment - Switchgear and relaying - Fuses - Communication Systems Interference Read more https://lnkd.in/gcUhMaj

The distortion in the waveform in the load current of any nonlinear device causes similar changes in the voltage waveform relative to the harmonic impedance of the source network. This voltage distortion affects both the current and voltage for all other loads connected to that system. The common effects of such harmonic distortion are as follows: - Motors and generators - Transformers - Capacitors - Power cables - Electronic equipment - Switchgear and relaying - Fuses - Communication Systems Interference Read more https://lnkd.in/gu-uV6g