KONVERSI DAYA LISTRIK

CATATAN KONVERSI DAYA LISTRIK

Sumber: http://www.rapidtables.com/electric/Current.htm

How to convert kVA to amps

How to convert apparent power in kilovolt-amps (kVA) to electric current in amps (A).

You can calculate amps from kilovolt-amps and volts, but you can't convert kilovolt-amps  to amps since kilovolt-amps and amps units do not measure the same quantity.

Single phase kVA to amps calculation formula

The current I in amps is equal to 1000 times the apparent power S in kilovolt-amps, divided by the voltage V in volts:

I_(A) = 1000 × S_(kVA) / V_(V)

So amps are equal to 1000 times kilovolt-amps divided by volts.

amps = 1000 × kVA / volts

or

A = 1000 · kVA / V

Example

Question: What is the current in amps when the apparent power is 3 kVA and the voltage supply is 110 volts?

Solution:

I = 1000 × 3kVA / 110V = 27.27A

3 phase kVA to amps calculation formula

The current I in amps is equal to 1000 times the apparent power S in kilovolt-amps, divided by the square root of 3 times the line to line voltage V in volts:

I_(A) = 1000 × S_(kVA) / (√3 × V_(V) )

So amps are equal to 1000 times kilovolt-amps divided by the square root of 3 times volts.

amps = 1000 × kVA / (√3 × volts)

or

A = 1000 · kVA / (√3 × V)

Example

Question: What is the current in amps when the apparent power is 3 kVA and the voltage supply is 110 volts?

Solution:

I = 1000 × 3kVA / (√3 × 110V) = 15.746A

How to convert amps to kVA

How to convert electric current in amps (A) to apparent power in kilovolt-amps (kVA).

You can calculate kilovolt-amps from amps and volts, but you can't convert amps to kilovolt-amps since kilovolt-amps and amps units do not measure the same quantity.

Single phase amps to kVA calculation formula

The apparent power S in kilovolt-amps is equal to current I in amps, times the voltage V in volts, divided by 1000:

S_(kVA) = I_(A) × V_(V) / 1000

So kilovolt-amps are equal to amps times volts divided by 1000.

kilovolt-amps = amps × volts / 1000

or

kVA = A · V / 1000

Example

What is the apparent power in kVA when the current is 12A and the voltage supply is 110V?

Solution:

S = 12A × 110V / 1000 = 1.32kVA

3 phase amps to kVA calculation formula

The apparent power S in kilovolt-amps is equal to current I in amps, times the line to line voltage V in volts, divided by 1000:

S_(kVA) = √3 × I_(A) × V_(V) / 1000

So kilovolt-amps are equal to amps times volts divided by 1000.

kilovolt-amps = √3 × amps × volts / 1000

or

kVA = √3 × A · V / 1000

Example

What is the apparent power in kVA when the current is 12A and the voltage supply is 110V?

Solution:

S = √3 × 12A × 110V / 1000 = 2.286kVA

TABEL KABEL 2 - 5

TABEL KABEL 2 - 5

Sumber: tabel kabel sucaco

Kabel NYY 0,6/1 kV
		Resistance at 20  C		Current carrying		Reactance	Short Circuit	Test
No. of core	Size	Conductor	Insulation	capacity		per conductor	Current	Voltage
		DC Calculated		in ground 30  C	in air 30  C		at 1 sec
	mm2	Ohm/km	M.Ohm.km	A	A	Ohm/km	kA	kV/5min
	1,5	12,1	62	27	21	0,108	0,17	4
	2,5	7,28	57	36	29	0,104	0,29	4
	4	4,56	52	47	38	0,1	0,46	4
	6	3,03	44	59	48	0,094	0,7	4
	10	1,81	36	78	66	0,088	1,16	4
	16	1,14	26	102	90	0,083	1,86	4
2	25	0,74	26	134	120	0,08	2,91	4
	35	0,524	22	160	150	0,077	4,07	4
	50	0,387	22	187	180	0,077	5,81	4
	70	0,268	19	230	230	0,074	8,14	4
	95	0,193	18	280	275	0,074	11,05	4
	120	0,153	16	320	320	0,072	13,95	4
	150	0,124	16	355	375	0,072	17,44	4
	1,5	12,1	62	24	18	0,108	0,17	4
	2,5	7,28	57	32	25	0,104	0,29	4
	4	4,56	52	41	34	0,1	0,46	4
	6	3,03	44	52	44	0,094	0,7	4
	10	1,81	36	69	60	0,088	1,16	4
	16	1,14	26	89	80	0,083	1,86	4
3	25	0,74	26	116	105	0,08	2,91	4
	35	0,524	22	138	130	0,077	4,07	4
	50	0,387	22	165	160	0,077	5,81	4
	70	0,268	19	205	200	0,074	8,14	4
	95	0,193	18	245	245	0,074	11,05	4
	120	0,153	16	285	285	0,072	13,95	4
	150	0,134	16	315	325	0,072	17,44	4
	185	0,0991	16	355	370	0,072	21,51	4
	240	0,0754	16	415	435	0,072	27,91	4
	300	0,0601	14	465	500	0,072	34,88	4
	1,5	12,1	62	24	18	0,115	0,17	4
	2,5	7,28	57	32	25	0,11	0,29	4
	4	4,56	52	41	34	0,107	0,46	4
	6	3,03	44	52	44	0,1	0,7	4
	10	1,81	36	69	60	0,094	1,16	4
	16	1,14	26	89	80	0,09	1,86	4
4	25	0,74	26	116	105	0,086	2,91	4
	35	0,524	22	138	130	0,083	4,07	4
	50	0,387	22	165	160	0,083	5,81	4
	70	0,268	19	205	200	0,082	8,14	4
	95	0,193	18	245	245	0,082	11,05	4
	120	0,153	16	280	285	0,08	13,95	4
	150	0,134	16	315	325	0,08	17,44	4
	185	0,0991	16	355	370	0,08	21,51	4
	240	0,0754	16	415	435	0,079	27,91	4
	300	0,0601	14	465	500	0,079	34,88	4
	1,5	12,1	62	24	18	0,115	0,17	4
	2,5	7,28	57	32	25	0,11	0,29	4
	4	4,56	52	41	34	0,107	0,46	4
	6	3,03	44	52	44	0,1	0,7	4
5	10	1,81	36	69	60	0,094	1,16	4
	16	1,14	26	89	80	0,09	1,86	4
	25	0,74	26	116	105	0,086	2,91	4
	35	0,524	22	138	130	0,083	4,07	4
	50	0,387	22	165	160	0,083	5,81	4

TABEL KABEL

TABEL

SIRKIT UTAMA (TUFUR) DAN SAKLAR UTAMA

DAYA (VA)	MCB PLN (A)	KABEL DIIZINKAN (TUFUR) (mm2)	SAKLAR UTAMA (A)
450	1 X 2	3 X 4	10
900	1 X 4	3 X 4	10
1300	1 X 6	3 X 4	10
2200	1 x 10	3 X 4	16
3500	1 x 16	3 X 4	20
4400	1 x 20	3 X 4	25
5500	1 x 25	3 x 6	35
6600	3 x 10	5 x 4	3 x 16
7700	1 x 35	3 x 10	40
10600	3 x 16	5 x 4	3 x 20
11000	1 x 50	3 x 16	60
13200	3 x 20	5 x 4	3 x 25
16500	3 x 25	5 x 6	3 x 35
23000	3 x 35	5 x 10	3 x 40
33000	3 x 50	5 x 16	3 x 60
41500	3 x 60	5 x 25	3 x 80
53000	3 x 80	5 x 35	3 x 100
66000	3 x 100	5 x 50	3 x 125
82500	3 x 125	5 x 70	3 x 160
105000	3 x 160	5 x 95	3 x 200
131000	3 x 200	5 x 120	3 x 225
147000	3 x 225	5 x 120	3 x 250
164000	3 x 250	5 x 120	3 x 300
197000	3 x 300	5 x 150	3 x 400

 sumber: instalatur PLN

TABEL KABEL CORE 1 (TUNGGAL)
Sumber: tabel kabel sucaco

Kabel NYY 0,6/1 kV  no, of core 1
	Resistance at 20  C		Current carrying		Reactance	Short Circuit	Test
Size	Conductor	Insulation	capacity		per conductor	Current	Voltage
	DC Calculated		in ground 30  C	in air 30  C		at 1 sec
mm2	Ohm/km	M.Ohm.km	A	A	Ohm/km	kA	kV/5min
1,5	11,9	62	33	26	-	0,17	4
2,5	7,14	57	45	35	-	0,29	4
4	4,47	52	58	46	-	0,46	4
6	2,97	44	74	58	-	0,7	4
10	1,77	36	98	80	-	1,16	4
16	1,12	26	98/107	86/100	0,11/0,254	1,86	4
25	0,708	26	125/138	120/135	0,107/0,242	2,91	4
35	0,514	22	151/165	145/170	0,097/0,228	4,07	4
50	0,379	22	178/196	180/205	0,096/0,189	5,81	4
70	0,262	19	218/240	225/260	0,094/0,21	8,14	4
95	0,189	18	263/289	280/320	0,091/0,203	11,05	4
120	0,15	16	298/329	330/375	0,088/0,196	13,95	4
150	0,122	16	338/374	380/430	0,086/0,192	17,44	4
185	0,0972	16	383/418	440/490	0,086/0,184	21,51	4
240	0,074	16	436/481	530/590	0,082/0,174	27,91	4
300	0,059	15	490/552	610/680	0,082/0,17	34,88	4
400	0,0461	14	579/632	740/920	0,078/0,163	46,51	4
500	0,0366	14	659/730	860/960	0,078/0,157	58,14	4