Awtomatikong Kontrolador ng Recloser

Deskripsyon

RWK-35 ay isang intelligent na medium Voltage controller na ginagamit sa overhead line grid monitoring para sa layuning pang-proteksyon ng overhead line. Ito ay maaaring maipagsamantalahan ng CW(VB) type vacuum circuit breaker upang makamit ang automatic monitoring, fault analysis at i-save ang mga event records.

Ang unit na ito ay nagbibigay ng ligtas na switching ng mga fault sa power grid at nagbibigay ng automatic power recovery. Ang serye ng RWK-35 ay angkop para sa hanggang 35kV outdoor switchgear kabilang ang: vacuum circuit breakers, oil circuit breakers, at gas circuit breakers. Ang intelligent controller ng RWK-35 ay mayroong line protection, control, measurement, at monitoring ng Voltage at current signals na integrated automation at control devices sa labas.

Ang RWK ay isang automatic management unit para sa single way/multi ways/ring network/two power sourcing, na may lahat ng Voltage at current signals at lahat ng mga function. Ang column switch intelligent controller ng RWK-35 ay sumusuporta: Wireless (GSM/GPRS/CDMA), Ethernet mode, WIFI, optical fiber, power line carrier, RS232/485, RJ45, at iba pang mga anyo ng komunikasyon, at maaaring mag-access ng iba pang station premises equipment (tulad ng TTU, FTU, DTU, etc.).

Pangunahing pagpapakilala ng function

1. Mga function ng protection relay:

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.

2. Mga function ng supervision:

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

2) 60VTS.   VT Supervision.

3. Mga function ng control: 

1) 86    Lockout, 

2) circuit-breaker control.

4. Mga function ng monitoring: 

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.

5. Mga function ng communication:

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. Mga function ng data storage:

1) Event Records,

2) Fault Records,

3) Measurands.

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

Teknolohiya at parameter

Struktura ng device

Tungkol sa customization

Ang mga sumusunod na optional functions ay available: Power supply rated at 110V/60Hz, 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.

Para sa detalyadong customization, mangyaring kontakin ang salesman.

Q: Ano ang recloser?

A: Ang reclosing device ay isang device na maaaring automatically detectin ang fault current, at automatically cut off ang circuit kapag nangyari ang fault, at pagkatapos ay gumawa ng maraming reclosing operations.

Q: Ano ang function ng recloser?

A: Ito ay pangunahing ginagamit sa distribution network. Kapag may temporary fault sa line (tulad ng branch touching the line for a short time), ang reclosing device ay nagrereset ng power supply sa pamamagitan ng reclosing operation, na malaking nakakabawas ng outage time at saklaw at nagpapataas ng reliabilidad ng power supply.

Q: Paano nagdedetermine ang recloser ng uri ng failure?

A: Ito ay naga-monitor ng mga katangian tulad ng magnitude at duration ng fault currents. Kung ang fault ay permanent, pagkatapos ng isang preset na bilang ng reclosing, ang reclosing device ay ililock up upang maiwasan ang mas malaking pinsala sa device.

Q: Ano ang mga application scenarios ng reclosers?

A: Ito ay malawakang ginagamit sa urban distribution network at rural power supply network, na maaaring epektibong harapin ang iba't ibang posible na line failures at tiyakin ang stable supply ng power.