Annex 1 - Abbreviations and Definitions

"AC" or "a.c." means Alternating Current;

"Applicant" means a producer of electricity through any MSDG installation;

"CEB" means the Central Electricity Board;

"Circuit breaker" means a switching device capable of making, carrying, and breaking currents under normal circuit conditions and also making, carrying for a specified time, and breaking currents under specified abnormal conditions such as those of short circuit;

"DC" means Direct Current;

"DG" means Distributed Generation;

"Distributed generation" means electric generation facilities connected to the Utility network at the PCC;

"Flicker" means a variation of input voltage sufficient in duration to allow visual observation of a change in electric light source intensity;

"Fault" means a physical condition that causes a device, a component, or an element to fail to perform in a required manner, for example a short-circuit, a broken wire, an intermittent connection;

"Frequency" means the number of complete cycles of sinusoidal variations per unit time;

"Greenfield" means an installation of MSDG at a location without existing connection point;

"Grid" means CEB's network that brings electricity from power stations to consumers;

"Harmonic distortion" means continuous distortion of the normal sine wave; typically caused by nonlinear loads or by inverters, measured in Total Harmonic Distortion (THD);

"HT" means High Tension (refers to systems normally operating at a voltage exceeding 1000 volts A.C. or 1500 volt D.C.);

"HV" means High Voltage (see "HT");

"Installer" means a person who is skilled in the field of MSDG installations and possesses an MQA-approved qualification or equivalent in electrical and renewable energy installations (as applicable to the MSDG installation) and which is acceptable to the CEB;

"Islanding" means a condition in which a portion of the CEB's network is energised by one or more MSDGs through their PCC(s) while electrically separated from the rest of the system;

"Isolated Generation" means a condition where the electrical path at the PCC is open and the MSDG continues to energise local loads;

"kV" means kilovolt;

"kVA" means Kilovolt Ampere;

"kW" means Kilo Watt (1,000 W = 1,000 J/s);

"kWh" means Kilowatt hour (1,000 watt hours);

"LV" means Low Voltage (refers to systems normally operating at a voltage not exceeding 1000 volts A.C. or 1500 volt D.C.);

"MSDG" means Medium Scale Distributed Generation;

"MW" means megawatt (1,000,000 W = 1,000,000 J/s);

"Parallel operation" means a condition where the MSDG is operating while connected to CEB's network;

"PCC" means point of common coupling;

"Point of Common Coupling (PCC)" means the point at which a MSDG is connected to the CEB's network;

"Power factor" means ratio of real to total apparent power (kW/kVA) expressed as a decimal or percentage;

"Producer" means a producer of electricity through a MSDG installation or the owner thereof;

"PV" means photovoltaic;

"RE" means renewable energy;

"Registered Professional Engineer" means a person registered as a Professional Engineer (Electrical or an alternative equivalent acceptable to the CEB) under the Registered Professional Engineers Council Act (Mauritius);

"SWC" means Surge Withstand Capability, the immunity of this equipment to fast and repetitive electrical transients;

"TT system" means in a TT earthing system, the protective earth connection of the consumer is provided by a local connection to earth;

"THD" means Total Harmonic Distortion