• Model NO.：ESI
• Production Capacity：1000000

Basic Info.

Model NO. ESI Production Capacity 1000000

Product Description

 

 

A.2 Function characteristics

1)        The whole scheme adopts ultra-low power consumption designing;

2)        Real time measurement of three-phase on-line current (cycle wave 64 points differential sampling);

3)        The current sampling accuracy is within 100A±3A, 100~2000A + 5%;

4)        Temperature sampling accuracy ±1ºC;

5)        It can accurately identify short circuit faults on overhead lines.;

6)        It can distinguish temporary fault, transient fault, permanent fault and grounding fault;

7)        Support for multiple fault diagnosis methods such as threshold, increment and percentage;

8)        It supports timing reset, power on automatic reset and remote reset;

9)        It supports the avoidance of various non-fault situations misjudgment, such as load fluctuation, large load switching, transformer no-load switching-in flow current, line switching-in flow current, re-switching in flow current, adjacent line fault, electrified installation and disassembly, etc.

10)    The 40mS minimum fault time can be accurately identified;

11)    The data transmission distance with the wireless communication terminal can reach 150 meters;

12)    It supports separate and matching use with handheld PDA;

13)    Support handheld PDA to match or modify parameter configuration on site;

14)    When the primary current is more than 10A, the power supply is automatically switched to CT;

15)    When the primary current is less  than 10A, the main battery is automatically charged;

16)    4pcs 3.3V 45mA solar panels charge the main battery at the same time;

17)    The double battery power supply circuit design scheme of a 3.2V 600mAh lithium iron phosphate rechargeable battery (main battery) and a 3.6V 2600mAh lithium-ion sub-battery (backup battery) are adopted;

18)    The structural parts are made of high permeability, rust proof and anticorrosive materials, which can electrified installation and disassembly;

19)    Six LED fault indicator lights; one fault indicator' status indicator

20)    Intelligent motor control failure turnover;

 

A.3 Technical Parameter

1)        Applicable line voltage:            ≤66kV

2)        Current measurement range:         0.5~2000A(AC)

3)        Measurement accuracy:             within 100A±3A,100-700A ±5%

4)        Quiescent current:                  12uA

5)        Working current:                   80uA

6)        Applicable wire diameter:            wire diameter (8 ~ 26 mm)

7)        Working frequency:                 433.00 ~ 491.00MHz

8)        Modulation mode:                  FSK

9)        Frequency stability:                   10PPM

10)    Transmitting power:                 5mW

11)    Receiving sensitivity:               -114dBm

12)    Air baud rate:                   20Kbps

13)    Signal transmitting distance      > 50m

14)    Turnover display, Actionable number:> 5000 times

15)    Continuous flash time:           > 4000h

16)    Flash time interval:            3S

17)    Operating ambient temperature:   -40ºC ~ 80ºC

18)    Battery specifications:           3.6V 2700mAh Non-rechargeable lithium battery Non-rechargeable lithium battery          3.2V 600mAh Rechargeable lithium iron phosphate battery

19)    Battery life:                   Static life >10 years