The Volt-Ampere Reactive Hour (VARh) is a lesser-known yet crucial unit in electrical engineering, especially in contexts involving alternating current (AC) systems. Unlike watts, which measure real power, VARh quantifies reactive power—the component of electricity that doesn’t transfer usable energy but is necessary for maintaining voltage levels in power systems. This unit is vital for utilities to assess and manage power quality, ensuring that generators and transformers operate efficiently without overloading.
Reactive power is essential for the stability of the electricity grid. Imagine a world where reactive power wasn’t measured or managed; voltage imbalances would lead to inefficient energy usage, increased operational costs, and potentially cause power failures. Monitoring VARh helps utility companies mitigate these risks, influencing both energy security and economic savings.
Gigavolt-Ampere Reactive Hour (GVARh) might sound like a mouthful, but it’s an essential unit in the world of electrical engineering. It measures reactive energy, which is the energy consumed in creating electric and magnetic fields in inductive and capacitive components of an alternating current (AC) system, such as transformers and motors. Unlike active energy, which performs actual work, reactive energy is crucial for maintaining voltage levels necessary for the efficient functioning of an electrical grid.
Reactive power isn’t wasted energy; instead, it balances the active power and allows for stable power delivery. To manage the “invisible” but critical aspect of reactive power, businesses employ power factor correction techniques to optimize energy efficiency. Understanding GVARh can help engineers design better systems and ensure the uninterrupted supply of power across large networks.
Volt-Amperes Reactive Hour | Gigavolt-Amperes Reactive Hour |
---|---|
0
VARh
|
0
GVARh
|
10
VARh
|
1e-8
GVARh
|
20
VARh
|
2e-8
GVARh
|
30
VARh
|
3e-8
GVARh
|
40
VARh
|
4e-8
GVARh
|
50
VARh
|
5e-8
GVARh
|
60
VARh
|
6e-8
GVARh
|
70
VARh
|
7e-8
GVARh
|
80
VARh
|
8e-8
GVARh
|
90
VARh
|
9e-8
GVARh
|
100
VARh
|
1e-7
GVARh
|
110
VARh
|
1.1e-7
GVARh
|
120
VARh
|
1.2e-7
GVARh
|
130
VARh
|
1.3e-7
GVARh
|
140
VARh
|
1.4e-7
GVARh
|
150
VARh
|
1.5e-7
GVARh
|
160
VARh
|
1.6e-7
GVARh
|
170
VARh
|
1.7e-7
GVARh
|
180
VARh
|
1.8e-7
GVARh
|
190
VARh
|
1.9e-7
GVARh
|
200
VARh
|
2e-7
GVARh
|
210
VARh
|
2.1e-7
GVARh
|
220
VARh
|
2.2e-7
GVARh
|
230
VARh
|
2.3e-7
GVARh
|
240
VARh
|
2.4e-7
GVARh
|
250
VARh
|
2.5e-7
GVARh
|
260
VARh
|
2.6e-7
GVARh
|
270
VARh
|
2.7e-7
GVARh
|
280
VARh
|
2.8e-7
GVARh
|
290
VARh
|
2.9e-7
GVARh
|
300
VARh
|
3e-7
GVARh
|
310
VARh
|
3.1e-7
GVARh
|
320
VARh
|
3.2e-7
GVARh
|
330
VARh
|
3.3e-7
GVARh
|
340
VARh
|
3.4e-7
GVARh
|
350
VARh
|
3.5e-7
GVARh
|
360
VARh
|
3.6e-7
GVARh
|
370
VARh
|
3.7e-7
GVARh
|
380
VARh
|
3.8e-7
GVARh
|
390
VARh
|
3.9e-7
GVARh
|
400
VARh
|
4e-7
GVARh
|
410
VARh
|
4.1e-7
GVARh
|
420
VARh
|
4.2e-7
GVARh
|
430
VARh
|
4.3e-7
GVARh
|
440
VARh
|
4.4e-7
GVARh
|
450
VARh
|
4.5e-7
GVARh
|
460
VARh
|
4.6e-7
GVARh
|
470
VARh
|
4.7e-7
GVARh
|
480
VARh
|
4.8e-7
GVARh
|
490
VARh
|
4.9e-7
GVARh
|
500
VARh
|
5e-7
GVARh
|
510
VARh
|
5.1e-7
GVARh
|
520
VARh
|
5.2e-7
GVARh
|
530
VARh
|
5.3e-7
GVARh
|
540
VARh
|
5.4e-7
GVARh
|
550
VARh
|
5.5e-7
GVARh
|
560
VARh
|
5.6e-7
GVARh
|
570
VARh
|
5.7e-7
GVARh
|
580
VARh
|
5.8e-7
GVARh
|
590
VARh
|
5.9e-7
GVARh
|
600
VARh
|
6e-7
GVARh
|
610
VARh
|
6.1e-7
GVARh
|
620
VARh
|
6.2e-7
GVARh
|
630
VARh
|
6.3e-7
GVARh
|
640
VARh
|
6.4e-7
GVARh
|
650
VARh
|
6.5e-7
GVARh
|
660
VARh
|
6.6e-7
GVARh
|
670
VARh
|
6.7e-7
GVARh
|
680
VARh
|
6.8e-7
GVARh
|
690
VARh
|
6.9e-7
GVARh
|
700
VARh
|
7e-7
GVARh
|
710
VARh
|
7.1e-7
GVARh
|
720
VARh
|
7.2e-7
GVARh
|
730
VARh
|
7.3e-7
GVARh
|
740
VARh
|
7.4e-7
GVARh
|
750
VARh
|
7.5e-7
GVARh
|
760
VARh
|
7.6e-7
GVARh
|
770
VARh
|
7.7e-7
GVARh
|
780
VARh
|
7.8e-7
GVARh
|
790
VARh
|
7.9e-7
GVARh
|
800
VARh
|
8e-7
GVARh
|
810
VARh
|
8.1e-7
GVARh
|
820
VARh
|
8.2e-7
GVARh
|
830
VARh
|
8.3e-7
GVARh
|
840
VARh
|
8.4e-7
GVARh
|
850
VARh
|
8.5e-7
GVARh
|
860
VARh
|
8.6e-7
GVARh
|
870
VARh
|
8.7e-7
GVARh
|
880
VARh
|
8.8e-7
GVARh
|
890
VARh
|
8.9e-7
GVARh
|
900
VARh
|
9e-7
GVARh
|
910
VARh
|
9.1e-7
GVARh
|
920
VARh
|
9.2e-7
GVARh
|
930
VARh
|
9.3e-7
GVARh
|
940
VARh
|
9.4e-7
GVARh
|
950
VARh
|
9.5e-7
GVARh
|
960
VARh
|
9.6e-7
GVARh
|
970
VARh
|
9.7e-7
GVARh
|
980
VARh
|
9.8e-7
GVARh
|
990
VARh
|
9.9e-7
GVARh
|
1000
VARh
|
0.000001
GVARh
|
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