EMLT: 211 227824-7 M: 0977 641010 / 0967 731975T: 211 227824-7 M: 0977 641010 / 0967 731975

EISM: 0955 228077 / 0974 228077 / 0965 108596M: 0955 228077 / 0974 228077 / 0965 108596

Power Factor Correction

Electrical Maintenance Lusaka Ltd (EML) is engaged in a number of energy saving projects particularly in the power factor correction environment as promoted by the Zambia Electricity Supply Company (ZESCO) in order to ensure a stable and efficient power grid. 
 
PFC at National Milling Livingstone
The above graph clearly shows significant cost savings in the real world case study of National Milling Company, Livingstone. (Graph courtesy of National Milling Company, Mr. Joseph Chibesa 2015.) NB where the blue bars begin to rise towards the end of the graph, this was caused by rising costs of electricity. 
 
By installing Power Factor Correction (PFC) equipment Large Power Users (LPU) can enjoy KVA savings and other associated benefits, such as:
  1. Real cost savings of up to 25% in maximum demand offering short payback periods for power factor correction equipment
  2. Stability  in power supply, particularly where there are voltage fluctuations
  3. Reduced equipment temperature, for example motors, transformers and cables - reduced temperatures result in longer life of the equipment.
  4. A reduction in the current (A) / KVA drawn from the supplier ZESCO due to equalization of magnetizing currents
  5. More KVA’s become available for use in other parts of the plant
  6. Minimal maintenance required if kept in a clean environment
The new design features offer high level of safety so that capacitors will just expand on failure.
 

Power Analysis

Electrical maintenance Lusaka (EML) offer the following on-site power analysis: 
  1. Calculating equipment size for power factor correction 
  2. Provide detailed recordings to ascertain equipment failure 
  3. Calculate generation capacity required in the event of load shedding
  4. Identify equipment that might generate harmonics such as current that could cause failure of equipment

Power Factor Correction At The Food Reserve Agency

FRA PFC

In early 2015 EML was proud to manufacture and supply the Food Reserve Agency (FRA) Zambia, six panels with 6 x 300 KVAR capacitors. The FRA will gain from the same savings and improvements mentioned earlier. 

Power Factor Correction At La Farge Ndola

EML secured the project via the tender process. The equipment, some of which was rated at 3.3kV, was acquired internationally and installed and commissioned at the cement plant in Ndola. The project was carried out in 3 phases starting in 2011 to 2012 and effectively achieved a power saving for La Farge of 1000kVA or ZMW45 000 per month in energy cost saving.

PFC NdolaMedium voltage PFC panel

KCM Supply of 11 KV Power Into New East/West Mills

 
EML was awarded this project in 2011 and though most of the material was free issue including the internationally sourced panels and 11kV cables the expertise for installation and commissioning still resided with the company. Installation comprised ten Unigear 4000A double busbar panels and 8*240mm 11kV XLPE cable through some road crossings into the plant from the Stadium substation operated by Coperbelt Electricity Corporation Plc. The project was completed in record time within six months.

East West Mills 

Power factor correction panels

 Recent sites where we are pleased to have installed Power Factor Correction:

  1. UMCIL STEEL MILL
  2. LA FARGE CEMENT MILL
  3. ORIENTAL QUARRIES
  4. NATIONAL MILLING
  5. SIMBA MILLING
  6. ZAMINITA OIL PLANT
  7. NOVATEK ANIMAL FEEDS
  8. CHOMA MILLING
  9. HI PROTEIN FOODS
  10. FARMFEED MILLING
  11. QUALITY COMMODITIES
  12. AGRILINK FARMS
  13. TIGER ANIMAL FEEDS
  14. MPONGWE MILLING