Advanced Recloser Controller Ang Kontrolador sa Advanced Recloser

Deskripsyon

Ang RWK-65 mao ang isang intelligent medium Voltage controller nga gigamit sa pag-monitor sa overhead line grid alang sa proteksyon sa overhead line. Kini mahimong iquipan og CW(VB) type vacuum circuit breaker aron makamit ang automatic monitoring, fault analysis ug storage sa mga event records.

Kini nga unit naghatag og safe line switching sa mga faults sa power grid ug naghatag og automatic power recovery. Ang serye sa RWK-65 maayo para sa hangtod sa 35kV outdoor switchgear kasama ang vacuum circuit breakers, oil circuit breakers, ug gas circuit breakers. Ang RWK-65 intelligent controller giequipan sa line protection, control, measurement, ug monitoring sa Voltage ug current signals integrated automation ug control devices sa labas.

Ang RWK mao ang automatic management unit para sa single way/multi ways/ring network/two power sourcing, gibigyan sa tanang Voltage ug current signals ug tanang functions. Ang RWK-65 column switch intelligent controller suporta: Wireless (GSM/GPRS/CDMA), Ethernet mode, WIFI, optical fiber, power line carrier, RS232/485, RJ45, ug uban pang mga form sa communication, ug mahimo mopasabot sa uban nga station premises equipment (tulad ni TTU, FTU, DTU, etc.).

Pangunahin nga pagsulay

1. Local Feeder Automation：

1) Adaptive comprehensive type, ang Adaptive comprehensive feeder automation gikamata sa "voltage loss opening, power delay closing" method, gihalubad sa short circuit/ground fault detection technology ug fault path priority processing control strategy, giugnay sa secondary closing sa substation outgoing switches, aron makamit ang fault localization ug isolation adaptation sa multi branch ug multi connection distribution network structures.   Ang unang closing mag-isolate sa fault section, ug ang ikaduhang closing magbalik sa power supply sa no fault sections.

2) Voltage time type, ang "voltage time type" feeder automation gikamata sa pag-combine sa working characteristics sa switch "no voltage opening, power delay closing" giugnay sa secondary closing sa substation outgoing switch.  Ang unang closing mag-isolate sa fault section, ug ang ikaduhang closing magbalik sa power supply sa no fault section.  

3) Voltage current time type, ang voltage current time type nadugangan og discrimination para sa fault current ug grounding current batasan sa voltage time type, sumala sa basic logic sa closing within the X time limit of power on, detecting residual voltage lockout within the Y time limit, losing voltage within the Y time limit after closing, ug detecting fault current lockout and opening.   Sa parehas nga panahon, adunay logic sa locking ug opening without detecting fault current within the Y time limit after closing, bisan pa mapabilis ang proseso sa fault isolation. Kon ang switch giequipan og spring operated mechanism, mahimo kini mapabilis ang isolation sa instantaneous faults sa pagdugang og power loss delayed opening (giugnay sa fast reclosing time sa substation outgoing switch).

2. Protection relay functions:

1) 79 Auto Reclose (Reclose) ,

2) 50P Instantaneous/Definite-Time Overcurrent (P.OC) ,

3) 51P Phase Time-Overcurrent（P.Fast curve/P.Delay curve）,

4) 50/67P Directional Phase Overcurrent (P.OC-Direction mode (2-Forward /3-Reverse)),

5) 51/67P Directional Phase Time-Overcurrent (P.Fast curve/P.Delay curve-Direction mode (2-Forward/3-Reverse)),

6) 50G/N Ground Instantaneous/Definite-Time Overcurrent (G.OC),

7) 51G/N Ground Time-Overcurrent (G.Fast curve/G.Delay curve),

8) 50/67G/N Directional Ground Overcurrent (G.OC- Direction mode (2-Forward/3-Reverse)) ,

9) 51/67G/P Directional Ground Time-Overcurrent (P.Fast curve/P.Delay curve-Direction  mode (2-Forward/3-Reverse)),

10) 50SEF Sensitive Earth Fault (SEF), 

11) 50/67G/N Directional Sensitive Earth Fault (SEF-Direction mode (2-Forward/ 3-Reverse)) ,

12) 59/27TN Earth Fault Protection With 3RD Harmonics (SEF-Harmonic inhibit enabled) ,

13)  51C   Cold Load,

14) TRSOTF Switch-Onto-Fault (SOTF) ,

15) 81 Frequency protection ,

16) 46 Negative- Sequence Overcurrent (Nega.Seq.OC),

17) 27 Under Voltage (L.Under volt),

18) 59 Over Voltage (L.Over volt),

19) 59N Zero-Sequence Over Voltage (N.Over volt),

20) 25N Synchronism－Check,

21) 25/79 Synchronism－Check/Auto Reclose,

22) 60 Voltage unbalance,

23) 32 Power direction, 

24) Inrush,

25) Loss of phase, 

26) Live load block, 

27) High gas, 

28) High temperature,

29) hotline protection.

3. Supervision functions:

1) 74T/CCS Trip & Close Circuit Supervision,

2) 60VTS.   VT Supervision.

4. Control functions: 

1) 86    Lockout, 

2) circuit-breaker control.

5. Monitoring Functions: 

1) Primary/Secondary Phases and Earth Currents,

2) Phases Current with 2nd Harmonics and Earth Current With 3RD Harmonics, 

3) Direction, Primary/Secondary Line and Phase Voltages,

4) Apparent Power and Power Factor,

5) Real and Reactive Power, 

6) Energy and History Energy,

7) Max Demand and Month Max Demand, 

8) Positive Phase Sequence Voltage,

9) Negative Phase Sequence Voltage & Current,

10) Zero Phase Sequence Voltage,

11) Frequency, Binary Input/Output status,

12) Trip circuit healthy/failure,

13) Time and date,

14) Trip, alarm,

15) signal records, Counters,

16) Wear, Outage.

6. 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.”.

7. Data Storage functions:

1) Event Records,

2) Fault Records,

3) Measurands.

8. remote signaling remote measuring, remote controlling function can be customized address.

Technology parameters

Device structure

About customization

The following optional functions are available: Power supply rated at 110V/60Hz,Two three-phase voltage sensors, 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: Ano ang recloser?

A: Ang reclosing device mao ang device nga mahimo automatikong detecton sa fault current, ug automatikong cut off sa circuit kon may fault, ug pagkatapos perform multiple reclosing operations.

Q: Ano ang function sa recloser?

A: Ginagamit kini sa distribution network. Kon may temporary fault sa line (tulad sa branch touching sa line sa kauban nga panahon), ang reclosing device magbalik sa power supply sa pamamaraan sa reclosing operation, nga dako nga mobawas sa outage time ug scope ug molambo ang reliability sa power supply.

Q: Pila ang recloser determine sa tipo sa failure?

A: Gi-monitor nia ang characteristics sama sa magnitude ug duration sa fault currents. Kon permanent ang fault, pagkahuman sa preset number sa reclosing, ang reclosing device mag-lockon aron mas sayon ang damage sa device.

Q: Unsa ang application scenarios sa reclosers?

A: Gi-gamit kini sa urban distribution network ug rural power supply network, nga efektibo sa pag-atas sa uban nga possible nga line failures ug sigurohon ang stable supply sa power.