The megavolt-ampere reactive (MVAR) is a unit of measurement used in electrical systems to quantify reactive power, which is the non-working power component in an AC circuit. Unlike real power (measured in watts), which performs actual work, reactive power is essential for maintaining voltage levels necessary for active power to flow through the grid. Think of it like the foam on a latte—it doesn’t contribute to the coffee’s caffeination but is critical for its quality and structure.
Engineers use MVARs to optimize the efficiency of power delivery, ensuring systems don’t become overloaded. This balance is vital for the stability of power grids, especially as renewable energy sources like wind and solar, which are often variable and intermittent, become more prevalent in our energy mix.
The Gigavolt-Ampere Reactive (GVAR) is a unit used in the field of electrical engineering to measure reactive power in large power systems. Reactive power is crucial as it represents the portion of electricity that does not perform any actual work but is essential to maintaining the voltage levels needed for grid stability and efficient power delivery. Although their measurement isn’t directly related to energy consumption, GVARs are instrumental in ensuring that electricity can be effectively transmitted over long distances without excessive losses.
Understanding GVARs is critical for managing the power factor in electrical systems, especially in industries with significant inductive loads like motors and transformers. These loads can lead to inefficiencies, but with the right balance of reactive power, systems optimize performance and reduce energy waste, contributing to more sustainable energy practices.
Megavolt-Amperes Reactive | Gigavolt-Amperes Reactive |
---|---|
0
MVAR
|
0
GVAR
|
1
MVAR
|
0.001
GVAR
|
2
MVAR
|
0.002
GVAR
|
3
MVAR
|
0.003
GVAR
|
4
MVAR
|
0.004
GVAR
|
5
MVAR
|
0.005
GVAR
|
6
MVAR
|
0.006
GVAR
|
7
MVAR
|
0.007
GVAR
|
8
MVAR
|
0.008
GVAR
|
9
MVAR
|
0.009
GVAR
|
10
MVAR
|
0.01
GVAR
|
11
MVAR
|
0.011
GVAR
|
12
MVAR
|
0.012
GVAR
|
13
MVAR
|
0.013
GVAR
|
14
MVAR
|
0.014
GVAR
|
15
MVAR
|
0.015
GVAR
|
16
MVAR
|
0.016
GVAR
|
17
MVAR
|
0.017
GVAR
|
18
MVAR
|
0.018
GVAR
|
19
MVAR
|
0.019
GVAR
|
20
MVAR
|
0.02
GVAR
|
21
MVAR
|
0.021
GVAR
|
22
MVAR
|
0.022
GVAR
|
23
MVAR
|
0.023
GVAR
|
24
MVAR
|
0.024
GVAR
|
25
MVAR
|
0.025
GVAR
|
26
MVAR
|
0.026
GVAR
|
27
MVAR
|
0.027
GVAR
|
28
MVAR
|
0.028
GVAR
|
29
MVAR
|
0.029
GVAR
|
30
MVAR
|
0.03
GVAR
|
31
MVAR
|
0.031
GVAR
|
32
MVAR
|
0.032
GVAR
|
33
MVAR
|
0.033
GVAR
|
34
MVAR
|
0.034
GVAR
|
35
MVAR
|
0.035
GVAR
|
36
MVAR
|
0.036
GVAR
|
37
MVAR
|
0.037
GVAR
|
38
MVAR
|
0.038
GVAR
|
39
MVAR
|
0.039
GVAR
|
40
MVAR
|
0.04
GVAR
|
41
MVAR
|
0.041
GVAR
|
42
MVAR
|
0.042
GVAR
|
43
MVAR
|
0.043
GVAR
|
44
MVAR
|
0.044
GVAR
|
45
MVAR
|
0.045
GVAR
|
46
MVAR
|
0.046
GVAR
|
47
MVAR
|
0.047
GVAR
|
48
MVAR
|
0.048
GVAR
|
49
MVAR
|
0.049
GVAR
|
50
MVAR
|
0.05
GVAR
|
51
MVAR
|
0.051
GVAR
|
52
MVAR
|
0.052
GVAR
|
53
MVAR
|
0.053
GVAR
|
54
MVAR
|
0.054
GVAR
|
55
MVAR
|
0.055
GVAR
|
56
MVAR
|
0.056
GVAR
|
57
MVAR
|
0.057
GVAR
|
58
MVAR
|
0.058
GVAR
|
59
MVAR
|
0.059
GVAR
|
60
MVAR
|
0.06
GVAR
|
61
MVAR
|
0.061
GVAR
|
62
MVAR
|
0.062
GVAR
|
63
MVAR
|
0.063
GVAR
|
64
MVAR
|
0.064
GVAR
|
65
MVAR
|
0.065
GVAR
|
66
MVAR
|
0.066
GVAR
|
67
MVAR
|
0.067
GVAR
|
68
MVAR
|
0.068
GVAR
|
69
MVAR
|
0.069
GVAR
|
70
MVAR
|
0.07
GVAR
|
71
MVAR
|
0.071
GVAR
|
72
MVAR
|
0.072
GVAR
|
73
MVAR
|
0.073
GVAR
|
74
MVAR
|
0.074
GVAR
|
75
MVAR
|
0.075
GVAR
|
76
MVAR
|
0.076
GVAR
|
77
MVAR
|
0.077
GVAR
|
78
MVAR
|
0.078
GVAR
|
79
MVAR
|
0.079
GVAR
|
80
MVAR
|
0.08
GVAR
|
81
MVAR
|
0.081
GVAR
|
82
MVAR
|
0.082
GVAR
|
83
MVAR
|
0.083
GVAR
|
84
MVAR
|
0.084
GVAR
|
85
MVAR
|
0.085
GVAR
|
86
MVAR
|
0.086
GVAR
|
87
MVAR
|
0.087
GVAR
|
88
MVAR
|
0.088
GVAR
|
89
MVAR
|
0.089
GVAR
|
90
MVAR
|
0.09
GVAR
|
91
MVAR
|
0.091
GVAR
|
92
MVAR
|
0.092
GVAR
|
93
MVAR
|
0.093
GVAR
|
94
MVAR
|
0.094
GVAR
|
95
MVAR
|
0.095
GVAR
|
96
MVAR
|
0.096
GVAR
|
97
MVAR
|
0.097
GVAR
|
98
MVAR
|
0.098
GVAR
|
99
MVAR
|
0.099
GVAR
|
100
MVAR
|
0.1
GVAR
|
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