Features for communicable indicators
Fault judge: identifying the Short-circuit fault , without testing the action value
reset way: Timing reset, manual reset , Intelligent automatic reset (A few minutes after Tripping, once the fault is cleared, reset itself upon the power return)
Handling charge: installing and removing while line is in charging condition
Rust and corrosion protection: Structure part is made of corrosion-resistant material
Surge suppression: to eliminate the wrong phenomenon of closing inrush current
The feature of the inverse: operating characteristics of maximum protection with the substation,to improve the action accuracy
Indication: Flashing and triggering a flip
Drop: Products from a height of 1 meter free fall to the concrete floor, no damage

The technical specifications:

Environment temperature: -35℃～70℃

Humidity: 5～95%RH

Altitude: ＜2000m

Voltage grade: 7～110kV

Frequency: 50 Hz

Power source: taking power through the line and Built-in lithium battery of 3.6V, more than 10 years

shelf lifeIndication: three high-intensity red LEDs, 360-degree visibility

 Main features for Remote transmission units

1. GSM or GPRS forwarding

GSM (short messages) and GPRS (data) are mutually the standby mode, which are used to send the substation condition, circuit load current, indicator status and fault information to main distribution network station, to ensure the reliable transmitting of distribution network fault information.

2. Remote upgrade

The equipment program can be upgraded conveniently through master remote maintenance station.

3. Work mode setting

The terminal can be in the two-remote or one-remote working mode by setting the intrinsic parameters of remote terminal uint.

Two-remote working mode: the terminal is online in real time, and the circuit load current and circuit status can be uploaded.

One-remote working mode: the terminal is online regularly; when the circuit breaks down, the terminal opens GPRS module power supply and sends the fault information to main distribution network station.

4. Functions

4.1. Wireless receiving: the fault point information and load current information sent by indicator are received via short-range wireless network mode.

4.2. GSM or GPRS forwarding: GSM (short messages) and GPRS (data) are mutually the standby mode, which are used to send the substation condition, circuit load current, indicator status and fault information to main distribution network station, to ensure the reliable transmitting of distribution network fault information.

4.3. Solar power supply: the solar power supply mode is applied, and the maintenance-free 8AH lead-acid battery or 12AH lithium iron phosphate battery is provided, with the working temperature range of both batteries of -35℃~75 ℃ and -20℃～75℃ separately.

4.4 Optional communication protocol: IEC870－5－101 protocol or 104 can be selected for the connection with the third party equipment to upload the fault and shift information.

4.5. Remote upgrade: the equipment program can be upgraded conveniently through master remote maintenance station.

4.6. Convenient maintenance: the parameter setting and equipment maintenance can be performed conveniently via wireless setting terminal.

4.7. Event recording: the device can record the maximum 500 pieces of SOE events, providing the rich data support for system fault analysis.