Type

Element

Parameter

Rated parameter

DC power supply

**0V or **0V

AC voltage

*7.7V or **0V

AC current

5A or 1A

Frequency

*0Hz

Power consumption

DC current loop

≤*0W

AC voltage loop

< 0.5VA per phase

AC current loop

<1VA per phase (In=5A)

<0.5VA per phase(In=1A)

Overload capacity

AC current loop

2 times rated current, continuously work

*0 times rated current, allowing continuously work *0s

*0 times rated current, allowing continuously work 1s

AC voltage loop

1.1 times rated voltage, continuously work

DC power supply loop

*0%~**0% rated voltage,

continuously work

Work range

current

0.2A~*9.9A

voltage

2V~**0V

frequency

*5Hz~*5Hz

Df/dt

0.5Hz/s~*0Hz/s

time

0~*9.9S

Rated error range

current and voltage

<±3% rated value

frequency rapid-break protection

<0.*2Hz

percentage differential protection

<±1% rated time**5ms

Protection time range

Over-current protection

rapid-break time < *0ms at 2 times

Differential rapid protection

motion time < *0ms at 1.5 times rated value

Percentage differential protection

<*0ms at 2 times rated value;

Work environment

Normal work temperature

*5°C~**5°C

Relative humility

5%**5%   

atmosphere pressure

*6~**6Kpa(below ***0m)

 Tele-metering level

voltage, current, frequency

0.5 level

other elements

0.5 level

tele-signaling resolution

<2ms

signal way

passive contact

Anti-interference performance

can bear 1MHz and **0KHz Sasser (differential mode, common mode)  impulse interference test;

can bear IV level fast transient interference based on GB(China National Standrd)/T1 ***8.******6

Relay contact capacity

tripping and switch in relay links to DC**0V/5A, while other signal relay connects to DC**0/1A;

Surge voltage/impulse voltage:

Input and output terminal to earth

can bear 5kV (peak) standard lightning impulse wave test among each and output terminal to earth, AC and DC loops and AC current and AC voltage

Mechanical performance

capable of bearing I level vibration response and impulse response (shock response)