Speed Of Light Engineering

30/04/2026

Effective design begins with overcurrent protection coordination. PV arrays can produce fault currents under short-circuit conditions, especially with parallel string configurations. String-level fuses must be sized based on module short-circuit current (Isc) with appropriate safety factors, while DC and AC-side breakers (MCBs/MCCBs) must ensure selective coordination. This prevents nuisance tripping while isolating only the faulted section.

Surge Protection Devices (SPD) are critical in regions with high lightning activity. In this scenario, the absence of Type II SPDs on the DC side allowed transient overvoltages to propagate into the inverter. Best practice involves installing Type I SPDs at the main distribution board (for lightning currents) and Type II SPDs at combiner boxes and inverter inputs to clamp switching and induced surges. Proper coordination between SPD classes ensures staged protection.

13/08/2024

Shout out to my newest followers! Excited to have you onboard!

Abubakar Muhammad, Oluwasheyi Odofin, Samson Adeniran, Feli Don, Righteous's Amayeta Rozay, Bafon Electfire

09/08/2024

Configuring a lithium battery system effectively involves several best practices to ensure safety, performance, and longevity. Here are key considerations:
1. **Choose the Right Battery Management System (BMS)**: A BMS is crucial for monitoring battery health, balancing cell voltages, and protecting against overcharge, over-discharge, and overheating.

2. **Proper Sizing**: Ensure the battery system is sized appropriately for your load requirements. Consider peak and average load demands to avoid overloading or underutilizing the system.

3. **Ventilation and Cooling**: Lithium batteries generate heat, so adequate ventilation or cooling is essential to prevent overheating and ensure safe operation.

4. **Proper Installation**: Follow manufacturer guidelines for installation, including placement, mounting, and wiring. Ensure connections are secure and insulated.

5. **Temperature Management**: Lithium batteries operate best within a specific temperature range. Implement temperature controls or heating elements if necessary to maintain optimal conditions

6. **Regular Monitoring**: Implement systems to regularly check battery health and performance. This can include monitoring charge cycles, state of charge (SOC), and state of health (SOH).

7. **Protection Measures**: Include fuses, circuit breakers, and other protection devices to safeguard the battery system from short circuits, overloads, and other electrical issues

8. **Maintenance and Updates**: Regularly inspect the system for any signs of wear or damage and update software or firmware for the BMS if applicable.

9. **Compliance and Standards**: Ensure the system complies with relevant standards and regulations, such as IEC, UL, or local codes, for safety and reliability.

10. **Training and Documentation**: Ensure that personnel involved in the installation, maintenance, and operation are properly trained and have access to comprehensive documentation.Following these practices will help maximize the performance and lifespan of your lithium battery system while ensuring safety and reliability.

20/06/2024

Inverters are electronic devices that convert DC (direct current) to AC (alternating current). They're essential for powering AC devices from sources like solar panels, batteries, or DC power supplies.

**Efficiency**: This is a critical factor in inverters. It's the ratio of AC output power to DC input power, typically expressed as a percentage. Higher efficiency means less power loss during conversion.

**Factors Affecting Efficiency**:
1. **Type of Inverter**: There are various types (like sine wave, modified sine wave, and square wave), each with different efficiencies.
2. **Load**: Efficiency can vary with the load (light vs. heavy loads).
3. **Quality of Components**: Higher-quality inverters often have better efficiency.
4. **Temperature**: Efficiency can drop at higher temperatures due to increased resistance and losses.

**Choosing an Inverter**: Consider your power needs, type of devices you'll power, and the source of DC power (solar, battery, etc.). Look for inverters with high efficiency ratings to minimize energy losses.

**Applications**: Inverters are used in solar PV systems, off-grid power systems, RVs, boats, and emergency backup systems. Efficient inverters help maximize the use of renewable energy sources and reduce operating costs.

29/05/2024

We made an upgrade on the system by adding a up5000 4.5kwh to the system.

24/05/2024

Our just concluded 5kw solar system configuration
Please watch full video here https://youtu.be/jp4XvN3Ca28?si=8e-MOBACsMXfBGcE

22/05/2024

With our determination to ever serve you better, we are pleased to announce that we are up and running now at speedoflight.com.ng.
You can now shop for solar, and backup solutions and request installations.

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17/05/2024

14kwh installation

17/05/2024

31/03/2024

14kw solar hyrid inverter
Finally commissioned
Chat us on 08069325391 to get a quote