Which cable is used in 11kV?
Which cable is used in 11kV?
The cable is suitable for rated voltage 6/11kV according to IEC 60502-2….Technical Specification.
| Cable type | Cu/XLPE/SC/SWA/PVC | |
|---|---|---|
| According to regulation | BS 6622 | |
| Rated voltage (U) | (kV) | 11kV |
| Voltage to neutral (Uo) | (kV) | 6.35kV |
| Material of conductor | Copper |
How many types of HT cables are there?
Medium and High Tension Cables 2. Super tension (ST) cables for 22 kV and 33 kV levels which are screened cables. 3. Extra high tension (EHT) cables for voltage levels from 33 kV to 66 kV which are pressure cables.
What is the size of HT cable?
HT Cable, Size: 95 Sqmm X 3c HT Cable
| Number of Cores | 3 |
|---|---|
| Conductor Material | Aluminum |
| Size | 95 Sqmm X 3c HT Cable |
| Armoured | Yes |
| Minimum Order Quantity | 50 Meter |
What is HT cable used for?
A high-voltage cable (HV cable) is a cable used for electric power transmission at high voltage. A cable includes a conductor and insulation. Cables are considered to be fully insulated. This means that they have a fully rated insulation system that will consist of insulation, semi-con layers, and a metallic shield.
What type of cable is HT?
High Tension Cables (HT): Such cables are operating less than 11kV. They are used in the input of any transformer/generator which is having 11kV as the input voltage. XLPE insulation is used.
How do I choose HT cables?
High voltage line cable selection is mainly based on the short circuit current of the line. Our high voltage line current is low but voltage is high, so cable selection is done based on short circuit current. 33 From KV 11 The line up to kV is called the high voltage line.
How do you calculate HT cable length?
The rating of the cable should be 150% of the full load current. i.e if your transformer’s primary current is 450 Amps means, you should choose 450 *150% = 675 Amps capacity size cable.
How is HT cable calculated?
1. Cable current carrying capacity
- Ifull-load = 12.5 × 106 / 1.73 × 20 × 103 = 361 A.
- Therefore subsequent current rating of cable to be 361 / 0.97 × 0.84 = 443 A.
- Isc = K × A / √t.
- Isc = 240 × 143 / √1 = 34.4 kA.
- Vd = Ifl × XL × sinφ + Ifl × R × cosφ volts.
- If = (1000 × 0.15) / (1 + 0.15) = 131 A.
How do I choose cable size?
To calculate the Cable Sizing one needs to divide the voltage running through the cable by the target current. For instance, If your wire has a voltage current of 150 Volts and your target is 30 then you divide 150/30. This gives you your target resistance of 5 which is required.
