In general tnb electricity tariff classification is based on consumer business activity at the said premise and its supply voltage level.
Tnb 3 phase power supply.
High voltage and extra high voltage 3 phase configuration solidly earthed.
Consumers are required to maintain their load power factor to a minimum of 0 85 for voltage level less than 132kv and 0 90 for voltage level 132kv and above.
Domestic premises the supply are at three phase 3 wire or three phase 4 wire.
It is either single phase power or three phase power supply.
In the event there is changes in activity at the said premise which requires change in consumer tariff category the following actions may be taken.
Promotion to upgrade single phase to three phase supply in conjunction with malaysia 50th merdeka celebration tenaga nasional berhad is offering a 50 discount on connection charges for users of single phase electricity supply who wish to convert to a 3 phase supply.
You are advised to change from a single phase supply to a 3 phase supply when your household electricity load exceeds 10kw or 50a.
A single phase meter measures usage from a 230 volt supply through two 2 wires while a 3 phase meter measures usage from a 415 volt supply through four 4 wires.
3 phase power supplies are utilized as a single phase ac power supply.
To upgrade from a single phase power supply to a 3 phase power you will need to apply through tenaga nasional tnb as they will be the ones who will send contractors to test and evaluate whether if upgrading to 3 phase power is a feasible option.
1 1 4 4 earthing system.
The three conductors are away from phase space and they have a phase angle of 120ยบ from each other.
Tenaga nasional berhad would like to acknowledge those that have.
The supply frequency is 50hz 1.
The power generation and distribution started in mid 1880 and since then the ac power supply has been used for powering common household items office equipment and industrial machines.
Supply may be provided at any of the declared voltages.
Main difference between single phase three phase power supply.
You are advised to change from a single phase supply to a 3 phase supply when your household electricity load exceeds 10kw or 50a.
The ac power exists and used in two forms i e.
Once approved the actual upgrade involves two parts external wiring and internal wiring.
1 1 4 3 power factor.
The offer is open to domestic and commercial customers only.
For the operation of small load 1 phase ac power supply along with the neutral can be chosen from the 3 phase ac power supply system.
275 kv 132 kv 33 kv 22 kv 11 kv 6 6 kv and 400 230 v.
