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RELAI ARUS LEBIH OVERCURRENT RELAY

RELAI ARUS LEBIH OVERCURRENT RELAY. FUNGSI SEBAGAI PENGAMAN UTAMA ATAU CADANGAN UNTUK GANGGUAN HUBUNG SINGKAT FASA – FASA FASA – TANAH APLIKASI PENGAMAN UTAMA JTM ( DISTRIBUSI ) GENERATOR ( Kapasitas kecil )

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RELAI ARUS LEBIH OVERCURRENT RELAY

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  1. RELAI ARUS LEBIH OVERCURRENT RELAY

  2. FUNGSI SEBAGAI PENGAMAN UTAMA ATAU CADANGAN UNTUK GANGGUAN HUBUNG SINGKAT FASA – FASA FASA – TANAH APLIKASI PENGAMAN UTAMA JTM ( DISTRIBUSI ) GENERATOR ( Kapasitas kecil ) TRAFO DAYA ( Kapasitas kecil ) MOTOR MOTOR BESAR SEBAGAI PENGAMAN CADANGAN

  3. PENGERTIAN RELAI ARUS LEBIH SUATU RELAI YANG BEKERJANYA BERDASARKAN ADANYA KENAIKAN ARUS YANG MELAMPAUI NILAI SETTINGNYA .

  4. JENIS RELAI ARUS LEBIH • NON DIRECTIONAL • DIRECTIONAL • KONTROL TEGANGAN • PENAHAN TEGANGAN

  5. KARAKTERISTIK @ ARAH 1. TIDAK BERARAH ( NON DIRECTIONAL ) 2. BERARAH ( DIRECTIONAL ) @ ARUS – WAKTU 1. TANPA TUNDA ( MOMENT = INSTANT ) 2. TUNDA WAKTU ( TIME DELAY ) # DEFINITE ( TERTENTU ) = INDEPENDEN # INVERSE ( I – t BERBANDING TERBALIK ) = DEPENDEN SI / NI = Standard / Normal Iverse VI = Very Inverse EI = Exteremely Inverse LTI = Long Time Invers

  6. KARAKTERISTIK INSTANT = MOMENT I

  7. KARAKTERISTIK TUNDA WAKTU TERTENTU ( DEFINITE TIME ) t I

  8. KARAKTERISTIK TUNDA WAKTU INVERSE INVERSE KURVA (TMS / Td )

  9. KARAKTERISTIK KOMBINASI INSTANT DENGAN TUNDA WAKTU TERTENTU (DEFINITE TIME ) t I

  10. KARAKTERISTIK KOMBINASI INSTANT DENGAN TUNDA WAKTU INVERSE t I

  11. TIPE PLUNGER KONTAK PLUNGER PEGAS Fp 0.6 BELITAN 0.8 Fe 1.0 1.2 INTI LUAR SETTING Faktor Pabrik Fe = GAYA ELEKTROMEKANIK Fp = GAYA PEGAS Fe < Fp DROP OFF Fe > Fp PICK UP

  12. TIPE KWH KUMPARAN LAGGING PIRINGAN Is KUMPARAN UTAMA I Mempunyai karakteristik Inverse

  13. SETTING ARUS DAN WAKTU TAP / PLUG SETING TAP SETTING ARUS DARI CT KUMPARAN UTAMA KONTAK DIAM DENGAN MENGATUR JARAK KONTAK TIME DIAL SETTING KONTAK GERAK

  14. TIPE RELAI STATIK SUPLAI DC A CT RECTIFIER I LEVEL DETECTOR R SETTING RELAI BANTU

  15. BLOK DIAGRAM RELAI ARUS LEBIH STATIK CURVE SHAPER FILTER CS R F F Ia Is MAX I GATE & RECT. RL Ib LD 1 LD 2 T 1 Ic Is INSTANT RL LD 3 3 LD = LEVEL DETECTOR T = TIMER R = REGULATOR SETTING INSTANT IBA DOC

  16. HS OUTPUT RELAY STATIC OVER CURRENT RELAY MCGG OUTPUT DRIVER TIME / CURRENT OUTPUT RELAY HS TIME 0.4/0 FULLWAVE RECTIFIER MICRO COMPUTER 0.2/0 INTERPOSSING CT 0.2/0 0.1/0 0.05/0 INPUT 0.05/0.025 TMS SWITH SETTING A/D 16/0 8//0 0.2/0.1 0.4/0 0.8/0 4//0 0.2/0 0.4/0 2/0 1/0 CURRENT SETTING HIGH SET SWITH SETTING CURVE SELECT SWITCH IBA DOC

  17. A B C E INST INST t t NAME PLATE I > Is I > Is RESET KARAK TERISTIK RELAI OCR / GFR TIPE MCGG 82 IBA DOC

  18. PRINSIP/CARA SETTING OCR # Iset Tunda waktu ( I > /Io>) * Is = k In In = Arus Nominal k = Faktor pabrik ( 1 s/d 2 ) atau 0,05 s/d 2,4 dengan step 0.05 * Plug Setting * Numeric IBA DOC

  19. # Waktu kerja (t> / to> ) * Definite ( Langsung atau dengan Tms ) * Inverse ( Td atau Tms dan Mps = I / Is ) t Td = Time dial setting Tms = Time multiple seting Mps = Multiple plug setting …. X Is tk tk Tms ( td ) 1,0 0,6 x Is Mps = 4 x Is IBA DOC

  20. # Is instant /moment ( I>> / Io>> ) * Is instant = k In atau k Is In = Arus Nominal Is = Arus setting tunda waktu k = Faktor pabrik * Plug setting * Numeric IBA DOC

  21. CONTOH CARA SETTING DENGAN MENGGUNAKAN OCR / GFR TIPE MCGG82 @ SETTING ARUS OCR /GFR DENGAN TUNDA WAKTU 0.1 0.05 0.1 0 0.2 0 ARUS SETTING 0.4 0 0.4 0 ARUS NOMINAL RELAI 0.4 0 0.8 0 FAKTOR PABRIK IBA DOC

  22. # MISAL ARUS SETTING Is = 6 A. Is = 1.2 In POSISI SAKLAR : 0.1 0.05 0.1 0 Is = ( 0.1 + 0.1 + 0.2 + 0 + 0 + 0 + 0.8 ) x 5A = 1,2 x 5A = 6 A 0.2 0 0.4 0 0.4 0 0.4 0 0.8 0 IBA DOC

  23. PEMILIHAN KARAKTERISTIK TRIP TEST : CURVA SI : 0 1 0 1 0 1 0 1 0 1 0 1 IBA DOC

  24. KURVA / KARAKTERISTIK @ STANDARD / NORMAL INVERSE ( SI ) @ VERY INVERSE ( VI ) @ EXTREMELY INVERSE ( EI ) @ LONG TIME INVERSE ( LTI ) IBA DOC

  25. SETTING WAKTU MISAL : KARAKTERISTIK EI ARUS GANGGUAN 3 x Is ( I = 3 ) WAKTU KERJA = 1 DETIK PEMILIHAN TMS : POSISI SAKLAR 0,025 0,05 0 0,05 0 0,1 0 0,2 0 0,2 0 0,4 IBA DOC

  26. SETTING INSTANT POSISI SAKLAR 0 1 0 2 0 4 0 8 0 16 0 IBA DOC

  27. 20KV X DATA SETTING I> = 5A; Io> = 1A ; I>> = 35A t>=0,5 detik ;to>=0,5 detik Karakteristik tunda waktu = SI P1 50 / 51 51N 300/5A 10P15 30VA P2 In relai = 5A Io>> tdk aktip F Ihs3f=3300A Ihs2f=2000A Ihs!f= 210A

  28. MCGG 82 INDICATOR RESET TMS SETTING CURVE SELECTION INST SETTING 49 50 TIME DELAY TRIP < < 21 13 < < + POWER SUPPLY CIRCUIT INST TRIP Is - Vx 14 22 < CURRENT SETTING Ph INPUT CIRCUIT Ph < RL 1-1 35 33 PHASE FAULT TIME DELAYED TRIP OUTPUT CONTACT 34 INST SETTING CURVE SELECTION TMS SETTING RL 1-2 29 47 48 TIME DELAY TRIP < 30 < 23 < OUTPUT CIRCUIT Ph < INST TRIP RL 2-1 Is 36 24 37 PHASE FAULT INSTATANEOUS TRIP OUTPUT CONTACT < CURRENT SETTING Ph < INPUT CIRCUIT Ph 38 RL 2-2 41 42 TMS SETTING INST SETTING CURVE SELECTION 45 RL 3-1 7 46 TIME DELAY TRIP < 6 < EARTH FAULT TIME DELAYED TRIP OUTPUT CONTACT 25 < < 5 INST TRIP Is RL 3-2 2 26 < INPUT CIRCUIT Ph < CURRENT SETTING Ph 1 OUTPUT CIRCUIT E/F RL 4-1 8 10 TMS SETTING INST SETTING CURVE SELECTION 43 EARTH FAULT INSTATANEOUS TRIP OUTPUT CONTACT 9 RL 4-2 16 44 TIME DELAY TRIP < < 27 < < 15 INST TRIP Is 28 < INPUT CIRCUIT E/F < CURRENT SETTING E/F

  29. SAMBUNGAN ( WIRING ) Sambungan tipe 3 OCR + 1 GFR OCR PMT OCR GFR R P1 S E T S1 CT OCR S2 P2 Diagram AC IBA DOC

  30. Sambungan tipe 2 OCR + 1 GFR PMT OCR GFR R P1 E T S1 CT OCR S2 P2 Diagram AC IBA DOC

  31. PENGUJIAN RELAI ARUS LEBIH • PENGUJIAN INDIVIDUAL • MENGUJI INDIVIDU RELAI ITU SENDIRI , UNTUK MENGETAHUI • APAKAH MASIH DALAM KEADAAN STANDAR ATAU TIDAK • PENGUJIAN FUNGSI • MENGUJI FUNGSI DARI SISTEM PROTEKSI SECARAKESELURUHANAPAKAH MASIH BERFUNGSI ATAU TIDAK

  32. PENGUJIAN INDIVIDUAL • HAL HAL YANG PERLU DIPERHATIKAN : • CARA SETTING • INTERNAL DIAGRAM RELAI • ALAT UJI / RANGKAIAN PENGUJIAN • ITEM PENGUJIAN • PROSEDUR PENGUJIAN • HASIL UJI DAN KESIMPULAN

  33. JENIS / ITEM PENGUJIN • ARUS PICK UP DAN ARUS DROP OFF SERTA • RASIO ARUS PICK UP DENGAN DROP OFF • KARAKTERISTIK ARUS – WAKTU • KARAKTERISTIK INSTANTANEOUS

  34. ARUS PICK UP [ ARUS AWAL / MULA ] • ARUS MINIMUM YANG MENYEBABKAN RELAI BEKERJA • 2. ARUS DROP OFF [RESET/ KEMBALI ] • ARUS MAKSIMUM YANG MENYEBABKAN RELAI TIDAK • BEKERJA. • 3. RASIO ARUS PICK UP DENGAN DROP OFF I I pick up I reset I beban t t gangguan

  35. PENGUJIAN INDIVIDUAL RELAI ARUS LEBIH 21 TIMER 22 29 23 30 24 START STOP 25 26 27 220 Vac 13 R 28 Vdc 14 A 220 Vac SLIDE TRAFO ISOLASI RANGKAIAN PENGUJIAN

  36. 1 2 T1 T2 P1 P2 C2 C1 C0 VOLTMETER 220 V CT SEC MAKE TIME ON ON EXT POWER OFF ON OFF FAULT BREAK LAMP OFF INT TPR 22 CV OFF A SELECTOR V A A OVR UVR OCR UCR OTHER RELAY 75 V 150V 10 A 5 A 300V B A B OFF 1 A MIN MAX MIN MAX TEST CONDITION B SELECTOR PORTABLE TEST SET RELAY TIPE TPR 22 CV

  37. + 21 13 A - 14 22 23 29 B 1 2 T1 T2 P1 P2 C2 C1 C0 VOLTMETER 220 V CT SEC 24 30 ON ON EXT 25 MAKE TIME 41 C POWER OFF 26 ON 42 OFF FAULT BREAK LAMP OFF INT OFF 27 A SELECTOR TPR 22 CV 1 E/F 28 2 15 V A A 16 OVR UVR 75 V OCR UCR OTHER RELAY 150V 10 A MCGG 82 B A B 5 A 300V OFF 1 A OCR / GFR YANG DIUJI MIN MAX MIN MAX B SELECTOR TEST CONDITION RANGKAIAN PENGUJIAN OCR/GFR DENGAN ALAT UJI TPR 22 CV

  38. PENGUJIAN RELAI OCR /GFR MCGG 82 HAND TERMINAL RELAI OCR / GFR MCGG 82 ALAT UJI XS92a ABB 13 + 21 Vx - 14 22 23 29 t > 24 30 25 41 t >> 26 42 27 1 to> 28 2 15 to >> 16 RANGKAIAN PENGUJIAN RELAI OCR / GFR TIPE MCGG 82 IBA DOC 2003

  39. (+) KONTAK OCR/GFR DIAGRAM KONTROL DC PROTEKSI OCR/GFR (+) RELAI BANTU RE 1 (-) TRIP PMT (+) RE 2 RELAI BANTU RE 3 ALARM (-)

  40. DIAGRAM SIGNALISASI (+) KONTAK RELAI RESET TEST LAMP RELAI BANTU RE LAMPU SIGNAL

  41. P2 SYMBOL V 20KV/V3 100V/V3 Q2 125VA,CL 1,0 S6 T5 HL1-3 x5 T5 fu1-3 0,3A F1 F2 MCGG52 50 / 51 50G/51G MCGG22 50G/51G 200 – 400/ 1A,30VA,10P20 T1-3 TO METERING REMOTE CONTROL PANEL x4 x3 MWH MWH A T1-3 IN OUT 200 – 400/ 1A,15VA,0,5 PL1-3 P3-1 P3-2 F3 MVTR51 79 x Q1 630A SINGLE LINE DIAGRAM FEEDER SCHEMATIC TYPE C2 3PH,20KV,2500A,50Hz,25KA,3Sec Grounding Neutral Bar 2000a

  42. L1 L2 L3 TLB 200 – 400 / 1A 30VA,10P20 F1 X4 XB3 21 22 F2 P1 2S1 27 2S2 2 2 2 2S3 MCGG52 MCGG22 P1 2S1 T1 2S2 28 3 03 3 2S3 25 26 Io > P1 2S1 T2 2S2 1 2 4 04 4 2S3 27 28 5 7 T3 1 01 1 6 I > Io >> TERMINAL 15 16 29 30 35 9 34 8 10 33 I >> 13 14 42 41 36 38 +T 13 37 110VDC 14 -T Io > 1 2 POWER CIRCUIT PROTECTION FEEDER SCHEMATIC 5 7 6 Io >> 15 16 9 8 10

  43. +C +T LOCAL REMOTE M 2 4 4 2 8 5 8 5 38 34 S8 1 3 1 3 F1 F1 F1 F1 F2 F2 CB 7 CLOSE OPEN 4 4 6 36 9 35 7 9 0 S1 7/4 2 3 5 3 S1 7/4 S3 K4 15/8 1 FROM RCP PANEL FROM BUCHOLZ TRIPPING ORDER FACILITY OPEN CLOSE K3 15/6 CIRCUIT BREAKER CONTROL FEEDER SCHEMATIC 2 4 6 X YL 1 3 5 M YB KN Q1 OPEN N CLOSE -T - C

  44. L1 L2 L3 TLB 200 – 400 / 1A 30VA,10P20 XB3 F1 X4 21 22 F2 P1 2S1 27 2S2 2 02 2 2S3 MCGG52 MCGG22 P1 2S1 T1 2S2 28 3 03 3 2S3 25 26 Io > P1 2S1 T2 2S2 1 2 4 04 4 2S3 27 28 5 7 T3 1 01 1 6 I > Io >> TERMINAL 15 16 29 30 35 9 34 8 10 33 I >> 13 14 TEST SET INJEKSI SEKUNDER 42 41 36 38 +T 13 37 110VDC 14 -T Io > 1 2 RANGKAIAN PENGUJIAN FUNGSI 5 7 6 Io >> 15 16 9 8 10 IBA 2006

  45. SETTING OCR GANGGUAN FASA – FASA [ TUNDA WAKTU

  46. KOORDINASI OCR # DEFINITE TIME A B C t 1,3 det 0,8 det 0,3 det I

  47. KOORDINASI OCR # INVERSE TIME SETING WAKTU DENGAN PEMILIHAN TD / TMS TD = TIME DIAL TMA = TIME MULTIPLE SETTING A B C t TMS B TMS C TMS A I

  48. SETTING ELEMEN INSTANTANEOUS DIMAKSUDKAN UNTUK GANGGUAN 3 FASA ,TETAPI HARUS MEMPERHATIKAN ARUS KETAHANAN KABEL . SETTING INSTANT

  49. KOORDINASI OCR # INSTANTANEOUS A B C

  50. KOORDINASI DARI RELAI KOMBINASI TUNDA WAKTU DENGAN INSTANT / A B C t t A t B t C t INST t INST I t TMS B TMS C TMS A t INST t INST I

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