LV Panel Testing and Commissioning
LV Panel Testing and Commissioning
LV Panel Testing and Commissioning
1. **Functional Testing:**
- Verify that the load is evenly distributed across all phases, and
there is no imbalance that could lead to overheating of components.
- Check for excessive voltage drop across the panel to ensure that the
connected loads receive the required voltage.
7. **Emergency Stop and Interlock Testing:**
#### **Pre-Installation:**
1. **Site Selection:**
2. **Transformer Inspection:**
3. **Foundation:**
4. **Clearances:**
### **Installation:*
5. **Transport and Rigging:**
6. **Positioning:**
7. **Grounding:**
8. **Oil Filling:**
11. **Bushings:**
- Make sure all low voltage (LV) and high voltage (HV) connections
are properly torqued.
- If applicable, install and test the tap changer for proper operation.
- Sample and test the insulating oil for quality and dielectric
strength.
18. **Documentation:**
- Confirm that all safety features, warning signs, and barriers are in
place.
- Confirm that the installation meets all local and national electrical
codes and regulations.
Testing and commissioning of Low Voltage (LV) panels are critical steps in
ensuring the proper functioning, safety, and reliability of electrical
distribution systems. Here's a general overview of the process:
1. **Pre-Commissioning Checks: **
- **Verify Voltage Levels:** Check that the voltage levels at different points
in the panel are within the specified limits.
### 8. **Training:**
3. **Dielectric Test:**
- **Purpose:** This test ensures that the LV panel does not emit excessive
electromagnetic interference and is not susceptible to external
interference.
- **Purpose:** This test ensures that the LV panel can withstand normal
power frequency voltages without breakdown.
3. **Continuity Test:**
4. **Functional Tests:**
- **Purpose:** To check the voltage drop across the panel under load
conditions, ensuring that the distribution of voltage is within specified
limits.
- **Procedure:** A load is applied, and the voltage drop at critical points
within the panel is measured.
1. **Visual Inspection:**
- Examine the physical condition of the panels, checking for any visible
damage, loose connections, or foreign objects.
6. **Operational Tests:**
- Conduct operational tests to ensure that the panels can perform their
intended functions.
- Check the switching operations and make sure that control devices
operate as expected.
7. **Load Testing:**
- Monitor for any abnormal behaviour or overheating during the load test.
- Verify that the voltage and frequency levels at the panel inputs and
outputs are within the specified limits.
- Test interlocks systems and safety features to ensure that the panels
comply with safety regulations.
12. **Training:**