Frequency drop

%

≤3

Steady-state frequency band

%

≤0.5

Relative frequency setting drop range

%

≥3.5

Relative frequency setting rising range

%

≥2.5

Transient frequency deviation

100% sudden reduction power

%

≤+10

Sudden power

≤-7

Frequency recovery time

s

≤3

Relative frequency tolerance band

%

2

Steady-state voltage deviation

%

≤±1

Voltage unbalance

%

1

Transient voltage deviation

100% sudden reduction power

%

≤+20

Sudden power

≤-15

Voltage recovery time

s

≤4

Voltage modulation

%

0.3

Relative voltage setting range

%

≤±5

Voltage setting rate of change

%/s

0.2～1

Telephone harmonic factor

THF

%

＜2

Phone influencing factors

TIF

/

＜50