Line Sectionalizing Load Break Switch Controller
Key attributes
| Brand | RW Energy |
| Model NO. | Line Sectionalizing Load Break Switch Controller |
| Rated voltage | 230V ±20% |
| Rated frequency | 50/60Hz |
| Electric energy consumption | ≤5W |
| Series | RWK-38 |
Product descriptions from the supplier
Description
RWK-381 line sectionalizing load break switch controller is a kind of switch which must cooperate with superior switch. It can’t cut off the fault current, it only trip when the line is low-voltage or no-current.
RWK-381 line sectionalizing load break switch controller adopts IT operation mode. When a fault happed, the controller will record the fault times. If the times come to the setting value, the controller will trip after the line is low-voltage or no-current.
The controlling box is made of stainless steel, the surface is dealt with painting, anticorrosion, can be used in outdoor environments.
It has charging circuit: It could take AC220V charging power supply from outside. If there is no power supply outside, it also could achieve opening/closing operation and all controller functions with battery. Besides that, it is set with anti-over discharge circuit for protecting the battery when there is no electricity of the power supply outside for a long time.
Main function introduction
1. Protection relay functions:
1) Section function,
2) 50 Instantaneous/Definite-Time Overcurrent (P.OC),
3) 51 Phase Time-Overcurrent (P.OC2/P.OC3),
4) 49 Overload
5) 50N Residual Ground Instantaneous/Definite-Time Overcurrent(G.OC),
6) 51N Residual Ground Instantaneous/Definite-Time Overcurrent (G.OC2 /G. OC3) ,
7) 50SEF Sensitive Earth Fault (SEF),
8) 51C Cold Load,
9) TRSOTF Switch-Onto-Fault (SOTF)
10) 27 Under Voltage (L.Under volt) ,
11) 59 Over Voltage (L.Over volt),
2. Supervision functions:
1) 74T/CCS Trip & Close Circuit Supervision,
2) 60VTS VT Supervision .
3. Control functions:
1) 60VTS Lockout ,
2) circuit-breaker control.
4. Monitoring Functions:
1) Primary/Secondary Phases and Earth Currents,
2) Direction,
3) Primary/Secondary Line and Phase Voltages,
4) Apparent Power and Power Factor,
5) Real and Reactive Power,
6) Positive Phase Sequence Voltage,
7) Negative Phase Sequence Voltage & Current,
8) Zero Phase Sequence Voltage,
9) Earth Current With 3RD Harmonics,
10) Frequency,
11) Binary Input/Output status,
12) Trip circuit healthy/failure,
13) Time and date,
14) Event records
15) Counters,
16) Wear.
5. Communication functions:
a. Communication interface: RS485X1,RJ45X1
b. Communication protocol: IEC60870-5-101; IEC60870-5-104; DNP3.0; Modbus-RTU
c. PC software: RWK381HB-V2.1.3,The address of the information body can be edited and queried by PC software,
d. SCADA system: SCADA systems that support the four protocols shown in "b.”.
6. Data Storage functions:
1) Event Records,
2) Fault Records,
3) Measurands.
7. remote signaling remote measuring, remote controlling function can be customized address.
Technology parameters
Device structure
About customization
The following optional functions are available: cabinet heating defrosting device, battery upgrade to lithium battery or other storage equipment, GPRS communication module,1~2 signal indicators,1~4 protection pressure plates, the second voltage transformer, custom aviation socket signal definition.
For detailed customization, please contact the salesman.
Q: What is line sectionalizing load break switch?
A:line sectionalizing load break switch is an important device used in power lines. Its main function is to segment the line according to certain rules. The advantage of this is that when a certain segment of the line fails, the segment switch can isolate the faulty segment from the normally functioning line.
Q: How does it determine the segments?
A: The segmentation is usually determined according to the load distribution, geographical layout and power supply reliability requirements of the line. For example, in the area where the load is more concentrated, a separate segment may be divided; Or by geographical area, such as a block or an industrial area.
Q: What is the significance of line sectionalizing load break switch for power system?
A: It can improve the reliability and flexibility of the power system. When a fault occurs, it can quickly isolate the fault, reduce the scope of power outage, so that power maintenance personnel can be more targeted to troubleshoot the fault, and other unaffected segments can continue to supply power normally, ensuring that
This device can connect to SCADA System and DMS, and you can connect the terminal to the server according to your local network conditions. This terminal supports CDMA (3G)/LTE (4G)/ NR（5G）, ETH, fiber optic and other ways to access the network. You can also contact us directly, and we will provide you with a solution for distribution network automation.
A: AC SUPPLY: AC POWER ON
BATTERY FAIL: BATTERY DISCHARGED
count1/2/3: Sectionalizer counts once/twice/three times
RESET: Sectionalizer reset
CYCLE: Sectionalizer is in progress
LOCK: Sectionalizer lock
COMMU: Communication is in progress
A/B/C: Phase A/B/C fault
OCR：over current fault
EF: earth fault
OVR/UVR: Over voltage/under voltage
This protective device supports 2-channel serial data communication, which is independent of each other. One channel is RS485, and the other channel is ETH, which can be configured separately. The configuration method is as follows:
- Enter the settings page: Edit → Port → Port1 set;
- Configure communication function on/off: Scroll down and find Comm1 Status set to 1, indicating it is turned on, and 0 indicates it is turned off. The default setting is open;
- Set communication baud rate: According to the baud rate configuration of RTU or protocol converter, the default value is 9600;
- Set communication protocol: There are four protocols to choose from, corresponding to setting 1 as IEC-60870-101, setting 2 as IEC-60870-104, setting 3 as DNP3.0, setting 4 as ModBus RTU, default as IEC-60870-101;
- Set communication balance (only valid for multiple IEC-60870-101): Set 1 to IEC-60870-101 protocol balance mode and 0 to imbalance mode;
- Set the communication source address: Set the value to 1-65535, default value to 1;
- Set the target address for the report: set the value to 0-65535, default value to 1;
- Set active upload: 0 does not actively upload, 1 actively uploads, default value is 1;
- Set remote signaling cycle: set to 1 periodic upload, 0 no upload
- Set the remote signaling cycle time: Set the time in seconds
- Set telemetry cycle: set to 1 periodic upload, 0 no upload
- Set telemetry cycle time: Set the time in seconds
- Save settings: After completing the settings, press the "Enter" key, enter the password 0099 (some models are 0077), press the "Enter" key again, and the screen will prompt "Save successful", indicating that the settings have been saved.
At this point, channel 1 has been established, and channel 2 is established in the same way as channel 1. At the same time, channel 2 also needs to be configured with network ports. The steps are as follows:
Connect to the computer using an Ethernet cable and access 192.168.0.7 via WEB (the computer's IP address must be 192.168.0.XXX network segment, otherwise it cannot be accessed). After entering the background, select the "Local IP Config" button to set the terminal's DHCP mode, static address, subnet mask, and gateway address; Select the "Serial Port" button in the background, set the output port of the communication protocol in "Local Port number", and set the network port working mode (TCP Server/TCP Client) in "Local Port number". When setting TCP Client, fill in the TCP server address below. At this point, all communication settings have been configured
NOTE: 1. The product has been set to default settings before delivery to meet most usage scenarios. It is not recommended to make modifications or only modify controllable items (such as modifying communication protocols, configuring communication functions on/off, etc.) when it can be used normally
Yes, this device has corresponding upper computer software (only available in windows-X86 version), which can be connected to the terminal through a serial port or network port, enabling fixed parameter configuration and viewing, address configuration for remote signaling, telemetry, and control, viewing of event reports, monitoring of electricity meters, packet capture of communication messages, and simulation of remote control functions.
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