Download - Laporan OJT AK3

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    Sebagai Seorang calon Ahli K3 listrik Wajib melakukan OJT dan Assesment Lapangan

    Pembinaan Ak3 Listrik. Yang mana dari hasil prakteknya akan di ajukan ke

    KEMENAKERTRANS - RI. Sebagai salah satu syarat untuk mendapatkan Surat Penunjukan

    sebagai Ahli K3 Listrik. Sebagai tempat OJT saya pilih PT Chitra Paratama Retread Division

    yang berada di Kota Balikpapan dengan melakukan pemeriksaan pada generator dan memeriksa

    dan menguji LVMDP.

    Untuk mendukungnya aktivitas di PT Chitra Paratama apabila terjadinya pemadaman

    listrik/Ganguan dari Gardu induk PLN, maka di sediakan 2 buah Unit Generator Dengan

    kapasitas generator 500 KVA, menggunakan bahan bakar solar, tegangan output generator 400

    Volt (3 Phase) dan 230 Volt (1 Phase) dan frekwensi 50Hz.

    Dari hasil pemeriksaan dan pengujian dapatlah disimpulkan bahwa kondisi operasi

    intalasi Listrik PT Chitra Paratama secara umum telah memenuhi aturan dan standard yang

    berlaku, tetapi masih ada beberapa temuan minor yang harus ditindak lanjuti temuannya.

    Memastikan perencanaan, pemasangan, penggunaan, pemeriksaan dan pengujianinstalasi listrik yang dilayani oleh panel serta sistem pentanahan sesuai dengan

    standard.Mengetahui potensi bahaya dari listrik di PT Chitra Paratama Retread Division

    (Chitra) .

    Kemungkinan timbulnya bahaya yang besar berupa kecelakaan, kebakaran,

    peledakan, pencemaran lingkungan dan penyakit akibat kerja ini dapat diakibatkan oleh

    kesalahan dalam penggunaan peralatan, pemahaman, kemampuan serta ketrampilan

    tenaga kerja yang kurang memadai.

    Masalah tersebut diatas akan sangat mempengaruhi dan mendorong peningkatan

    jumlah maupun tingkat keseriusan kecelakaan kerja dan penyakit akibat kerja. Untuk

    mengurangi masalah tersebut maka diperlukan peningkatan pelaksanaan K3 di tempat

    kerja, agar kecelakaan dan penyakit akibat kerja dapat dikurangi. Sejalan dengan

    kebijakan pemerintah dengan diterapkannya Permenaker No. 12 tahun 2015 tentang

    Keselamatan dan Kesehatan Kerja Listrik di tempat kerja.

    Untuk itu diperlukan seorang Ahli k3 Listrik untuk melakukan pengawasan

    pelaksanaan K3 Listrik di tempat kerja sebagai perpanjangan tangan pengawas K3

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    Disnaker. Sebelum mendapatkan penunjukan dari KEMENAKERTRANS - RI Seorang

    Calon Ahli k3 Listrik wajib melakukan pembuatan Laporan OJT dan Assesment

    Lapangan Pembinaan Ahli k3 Listrik.

    Undang-Undang No: 1 tahun 1970 : Tentang Keselamatan Kerja

    Peraturan Menteri Tenaga Kerja RI No. Per.05/MEN/1996 : Tentang Sistem

    Manajemen Keselamatan Dan Kesehatan Kerja

    Keputusan Menteri Tenaga Kerja RI No. 12 Tahun 2015 : Tentang Keselamatan Dan

    Kesehatan Kerja Listrik Di Tempat Kerja

    Peraturan Menteri Tenaga Kerja RI No: PER.04/MEN/1995 : Tentang PerusahaanJasa Keselamatan Dan Kesehatan Kerja

    PT Chitra Paratama Retread Division (Chitra) menawarkan berbagai macam produk

    Michelin, dan Nokian termasuk ban untuk 'earthmovers', truk, bus, dan peralatan kehutanan dan

    pertanian. Chitra juga menjual aksesori ban, termasuk rims roda dan komponen TOPY, serta ban

    dalam. Sejalan dengan tujuan perusahaan untuk menyediakan solusi ban terpadu pada pelanggan,Chitra juga melakukan pemeliharaan dan perbaikan ban di lokasi, memiliki dan mengoperasikan

    retread factory di Balikpapan untuk ban truk, bus, dan earthmovers.

    Visi Chitra adalah menyediakan pelanggan dengan solusi ban terpadu, termasukdukungan teknis dan mesin untuk memaksimalkan umur ban, dengan biaya yang minim. Kami

    aktif mendorong dan berpartisipasi dalam kemitraan dengan pemasok kami, menciptakan sinergi

    untuk mempromosikan keberhasilan bersama. Kami didukung oleh 180 karyawan yang bekerja

    di kantor pusat Jakarta serta di Balikpapan, Batu Hijau, Tanjung, Sanggata, Gunung Bayan danPalembang.

    Berawal dari sebuah divisi PT Trakindo Utama pada tahun 1996, PT Chitra Paratamadidirikan pada tanggal 18 Februari 2000 dan sejak itu telah mengintegrasikan sistem praktek

    manajemen terbaik ke dalam strukturnya. Salah satu langkah terakhir termasuk mendapatkan

    sertifikasi OHSAS 18001:2007 dari World Quality Assurance (WQA) pada tanggal 14 Agustus

    2009.

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    Nama dan Alamat Pemakai : PT Chitra Paratama Retread Division

    Subyek : Generator Set ( GENSET )

    Tempat Pemeriksaan : Ruang Genset

    Tanggal Pemeriksaan : 3 November 2015

    Motor Pengerak (Primover)

    Pabrik Pembuat : Caterpillar

    Nomor Seri : STH00703

    Model : C18-550

    RPM : 1500

    Daya : 536 HP

    Langkah : 4

    Bahan Bakar : Solar

    Jumlah Silinder : 6

    Generator

    Pabrik Pembuat : Caterpillar

    Model : LC6134F

    Seri Nomor :

    Rate Output : 500 kVA

    Voltase : 400 / 230 Volt

    Ampere : 722 Amp

    Frekwesi : 50 Hz

    Phase : 3

    Isolation Class : H

    Power Faktor : 0.8

    Tahun Pembuatan : 2005

    IP : 23

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    No Bagian Yang diperiksa Kondisi Keterangan

    A Generator

    - Plat Nama Baik Kelihatan jelas

    - Switch Manual Baik Mudah dioperasikan

    - Oli Baik Volume oli cukup

    - Air Radiator Baik Tidak ada bocor

    - Klem dan Air Accu Baik Clem kencang

    - Valve Solar - -

    - Filter Udara Baik Bersih dari kotor

    - Runing Hours Meter Baik Dokumen Tidak terecord

    - Exhause Fan - -

    - Exhause Engine Baik

    - Alat Pemadam Kebakaran Baik

    - Kebersihan Baik

    - Sambungan Grounding Baik Sambungan kuat

    B Panel Generator

    - Tombol Emergensi Baik Masih Berfungsi

    - Switch Speed Adjuter Baik Masih Berfungsi

    - Tombol Auto Baik Masih Berfungsi- Battery Voltage Meter Baik Masih Berfungsi

    - RPM Meter Baik Masih Berfungsi

    - Pressure Meter Baik Masih Berfungsi

    - Temperatur Oli Meter Baik Masih Berfungsi

    - ACB Baik Masih Berfungsi

    - MCB Baik Masih Berfungsi

    - Switch CB Operation Baik Masih Berfungsi

    - Switch Basic Set Baik Masih Berfungsi

    - Switch Syncron On Baik Masih Berfungsi

    - Kontak ACB untuk Syncron Baik Masih Berfungsi

    - Ampare RST Meter Baik Masih Berfungsi

    - Voltage Meter Baik Masih Berfungsi

    - KW Meter Baik Masih Berfungsi

    - Frekquensi Meter Baik Masih Berfungsi

    - Cos Q Meter Baik Masih Berfungsi

    - Indikator RST Baik Jelas

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    C LVMDP

    - Periksa Konstruksi Kubikel Baik Masih Berfungsi

    - Periksa Busbar dan Sambungan Baik

    - Periksa Rele dan Peralatan Baik

    - Periksa Pengaman Lebur Baik

    - Periksa Kabel Baik

    - Periksa Tata Peletakan Kabel Baik

    - Periksa Pemutus Rangkaian Baik Masih Berfungsi

    - Periksa Blok Terminal Baik

    - Periksa Insulator Baik

    - Periksa Pelat Nama Baik Masih Terbaca Jelas

    - Periksa Lampu Indikator Baik Masih Berfungsi

    - Periksa peralatan meteran Baik Masih Berfungsi

    - Periksa Peralatan Alarm Baik Masih Berfungsi

    - Periksa Pembumian Baik Tersambung

    - Periksa Sambungan Kabel Baik

    - Periksa Kode Penandaan Kabel Baik Masih Terbaca Jelas

    - Periksa Ukuran Busbar Baik

    - Periksa Dudukan Switchgear Baik Masih Berfungsi

    - Periksa Saklar On/Off Baik Masih Berfungsi

    - Periksa Penahan Pintu Panel

    Baik Masih Berfungsi

    Jenis Kabel KHA

    - NYY 4 x 240 mm2

    - NYY 4 x 10 mm2

    - NYY 4 x 4 mm2

    - NYFGBY 4 x 25 mm2

    - NYFGBY 4 x 16 mm2

    - BC 2 x95 mm2

    -

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    IV.

    Pengukuran dilakukan terhadap :

    a. Pemeriksaan Resistansi Isolasi Kabel

    *

    Kyoritsu Megger Tester 3005, Serial 1515468

    b. Pemeriksaan Drop Voltage di Pemakaian

    *

    Krisbow Multitester Tester

    c. Pengukuran Tahanan Pentanahan

    * Kyoritsu Earth Tester 4102A

    No.Resistansi Isolasi

    (M-ohm)

    TESTVOLTAGE

    (V dc)

    Spec(M-Ohm)

    >Result

    01. Kabel Dari Sumber Utama ke Panel distribusi

    R-(S-T-N) S-(R-T-N) T-(R-S-N)

    800/900/350 800/900/450 900/900/450 500 1 Acc

    No.Drop Voltage

    (Volt)

    SpecTidak BolehLebih Dari

    4% TegSumber

    Result

    01. Kotak Kontak Tusuk

    TeganganSumber

    F-NTitik 1

    F-NTitik 2

    F-NTitik 3

    230 223,5 227.5 224.4Min 220,8

    Volt Acc

    No. LokasiTahanan Pentanahan

    (Ohm)

    Spec(Ohm)

    Tidak BolehLebih Dari

    Result

    01.Rod Panel DistribusiLVMDP

    0.53 5 Acc

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    Berdasarkan hasil pemeriksaan dan pengukuran tersebut diatas, dan dilakukan analisa

    Resistansi Isolasi Sesuai PUIL 2011 Tabel 6.2

    Voltase sirkuit Nominal sampai dengan 500 V, Termasuk FELV voltase ujinya 500V Dc

    Resistansi Isolasinya Harus Lebih besar atau sama dengan 1 M

    Drop Voltase Sesuai PUIL 2011 2.2.3.1

    Drop voltase antara terminal dan sembarang titik tidak boleh melebihi 4 % dari voltase

    pengenal

    Resistansi Sistem Pentahanan Sesuai PUIL 2000 3.13.2.10

    Resistansi Pembumian total seluruh sistim t idak boleh lebih dar i 5

    dapat disimpulkan bahwa Instalasi Listrik Bangunan di PT. Chitra Paratama Retread Division

    tersebut LAIK digunakan

    BALIKPAPAN, 05 November 2015

    Mengetahui

    Atasan Langsung

    (Hery Priono ) ( Zulhaidir )

    Kabid Kom 2 Inspector

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    Standard / Code, Spesifikasi, Rekomendasi Teknik, Spesifikasi Pemilik (owner spec.) dan

    peraturan lainnya yang berkaitan dengan pemasangan dan pengoperasiaan peralatan yangdipergunakan :

    NFPA 70/ NEC (National Fire Protection Association)

    IEC (International Electrical Code)

    PUIL 2011 (Peraturan Umum Instalasi Listrik)/ SIN 04-0225-2011

    NETA (International Electrical Testing Association)

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    All data in this document is for information only and is subject to change.

    Avesco AG Tel: +41 (0)848 363 749

    Energy Systems Fax: +41 (0)62 915 81 36

    Hasenmattstrasse 2

    CH4901 Langenthal / BE

    www.avesco.ch Ref: CAT C15-550_EN

    [email protected] Date: 11 November 2013

    Technical data Diesel Generator Set CAT C15-550

    Output Ratings with Radiator DIN/ISO 3046

    Combustion Strategy Low BSFC, 49 C ACT

    Generating set Model Prime Standby

    400V, 50Hz, power factor 0.8 500 kVA400 kW

    550 kVA440 kW

    Feature Code C15DF1W

    Performance No. DM8494 DM8495

    Diesel Engine

    Brand Caterpillar

    Type C15 ATAAC

    No. of Cylinders / Alignment 6 / I

    Cycle 4-Stroke

    Cooling Method Water-cooled

    Fuel Diesel

    Speed 1500 rpm

    Bore 137.20 mmStroke 171.40 mm

    Displacement 15.20 L

    Compression Ratio 16.1:1

    Aspiration Air-to-Air Aftercooled

    Fuel System MEUI

    Base Tank Capacity Optional 908 L

    Jacket Water heaters 220 V / 9 kW

    Starting Motor 24 V / 7 kW

    Battery Type 115-2421

    Quantity 2

    Capacity per Battery / total 90 Ah - 12 V / 90 Ah - 24 V

    Generator

    Brand Caterpillar

    Type / Frame LC6134F

    Excitation Permanent Magnet or AREP

    Pitch 0.6667

    Number of Poles 4

    Number of Bearings Single Bearing

    Number of Leads 12

    Insulation Class H

    IP Rating IP23

    Nominal Speed 1500 rpm

    Over Speed capability 150 %

    Wave form Deviation (Line to Line) Less than 2 %

    Voltage RegulatorThree phase sensing

    Voltage regulation Less than % (steady state)

    Less than % (w/ 3%speed change)

    Telephone Influence Factor (TIF) Less than 50

    Total Harmonic Distortion (THD) Less than 2%

    CBK 3pol manual, fixed mount rear 800 A / 50 kA

    Typical Cabeling; TN-C (Prime) 2 x 4 x 185 mm + 1 x 1 x 185 mm

    Typical Cabeling; TN-C (Standby) 2 x 4 x 150 mm + 1 x 1 x 150 mm

    Package Dimensions

    Engine: Length x Width x Height 1447 x 897 x 1820 mm

    Weight 1590 kg

    Generator: Length x Width x Height 1725 x 732 x 1170 mm

    Weight 1260 kg

    Radiator: Length x Width x Height 814 x 1119 x 1784 mm

    Dry Weight 140 kg

    Complete: Length x Width x Height 3897 x 1119 x 2250 mm

    Weight 3490 kg

    Illustration

    Technical Data Prime Standby

    Fuel Consumption

    100% load with Fan 102.0 L/hr 111.8 L/hr

    75% load with Fan 76.2 L/hr 83.6 L/hr

    50% load with Fan 54.0 L/hr 58.7 L/hrOil consumption 75% load 0.057 L/hr 0.063 L/hr

    Cooling System

    Engine coolant Capacity with

    Radiator / expansion Tank70.8 L

    Engine coolant Capacity 20.8 L

    Inlet Air

    Combustion Air inlet flow rate 28.1 m/min 30.7 m/min

    Exhaust System

    Exhaust stack gas Temperature 511.3 C 528.4 C

    Exhaust gas flow rate 79.2 m/min 87.2 m/min

    Exhaust System backpressure max. 10 kPa

    Heat Rejection

    Heat Rejection to coolant (total) 149 kW 166 kWHeat Rejection to exhaust (total) 360 kW 398 kW

    Heat Rejection to after cooler 75 kW 83 kW

    Heat Rejection to Atmosphere from

    Engine46 kW 70 kW

    Heat Rejection to Atmosphere from

    Generator23.3 kW 26.6 kW

    Lube System

    Sump refill with Filter 60.0 L

    Exhaust Emission (Nominal Data); Potential Site Variation possible

    NOx mg/nm 3438.4 3689.4

    CO mg/nm 170.2 168.2

    HC mg/nm 5.3 5.8

    Part Matter mg/nm 7.9 7.0

    GeneratorMotor starting capability @30%

    Voltage Dip1455 skVA

    Rated Current 721.7 A 793.9 A

    Short-Circuit Current 3 x INOM

    Radiator

    Radiator Type AS14.2 CTS

    Design Temperature 52 C

    Radiator coolant Capacity 50.0 L

    Air Flow @ 120 Pa 476 m/min

    Air Flow @ 180 Pa 445 m/min

    Sound pressure Level LPA @ 75% Last @ 7m

    dB Hz 63 125 250 500 1000 2000 4000 8000Overall

    dBA

    Mechanical [Stby] 86 85 85 86 87 84 80 82 91

    Exhaust [Stby] 79 84 88 94 94 95 91 79 99

    Mechanical [Prim] 86 85 85 86 87 84 80 82 91

    Exhaust [Prim] 79 84 88 94 94 95 91 79 99

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    Low voltage electrical distribution

    Masterpact NWCircuit breakers and switch-disconnectorsfrom 800 to 6300 A

    User manual

    09/2009

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    The Masterpact NW range of circuit breakers and switch-disconnectors

    offer current ratings from 800 A to 6300 A.

    Five different performance levels are available:

    N1: standard with total discriminationH1: high performance with total discrimination

    H2: a compromise between current limiting and discrimination

    H3: high breaking capacity and discrimination, without current limiting

    L1: high level of current limiting, with some discrimination.

    b

    b

    b

    b

    b

    Rating plate

    DB118744

    DB118327

    DB118743

    DB118374

    Icu kA at 415 V

    Ics = 100% Icu150

    100

    65

    42

    L1 H3H2

    H1

    N1

    160012001000800 2000 2500 3200 4000 5000 6300

    Rating plateIdentifying Masterpact

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    Discovering Masterpact

    Masterpact circuit breakers are available in drawout and xed versions.

    The drawout version is mounted on a chassis and the xed version is installed using

    xing brackets.

    Drawout version

    Fixed version

    DB118375

    DB118376

    Components

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    Chassis

    DB118745

    Discovering Masterpact Components

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    Circuit breaker / switch-disconnector

    DB118

    746

    MCH gear motor forelectrical charging ofthe operating mechanism

    Operating-mechanismcharging handle

    PF "ready to close"contact

    SDE/2 "fault-trip"indication contactor Res electricalremote reset

    Terminal block forthe control unit andthe SDE contact(s)

    MX/2 opening release orMN undervoltage release

    XF closing release

    MX/1 opening release

    Closing pushbutton

    Opening pushbutton

    Operation counter

    Carrying grip

    SDE/1 "fault-trip"indication contact

    Arc chute

    Block of 4 OF "ON/OFF"indication contacts

    Terminal block forthe control auxiliaries

    2 Blocks of 4 additional OF"ON/OFF" contacts or EF combined"connected/closed" contacts

    Keylocking kit

    Locking by padlocks

    BPFE electrical closing pushbutton

    Control unit

    Terminal block for the ON/OFFindication contacts

    Discovering Masterpact Components

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    Front

    DB118747

    RESET

    Indicator for positionof the main contacts

    "Springs charged"and "Ready to close"indicator

    Locking by padlockor lead-seal coverfor pushbuttons

    Rating plate

    Trip indication buttonused to reset before closing

    Discovering Masterpact Components

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    Interval Operations ProcedureEach year Open and close the device

    locally and remotely, successivelyusing the various auxiliaries

    Test the operating sequencesTest the control unit using the

    mini test kit.

    b

    b

    b

    see pages 10 and 11.

    see page 8.see the user manual

    of the control unit.

    v

    v

    v

    Every two years orwhen the control-unitmaintenance indicatorreaches 100

    Check the arc chutesCheck the main contactsCheck the tightness of

    connectionsCheck the disconnecting-contact

    clusters

    b

    b

    b

    b

    see page 43see page 43see the device

    installation manualsee page 44

    v

    v

    v

    v

    Maintaining Masterpact

    performanceRecommended maintenanceprogram

    Periodic inspections required

    Type of

    circuit breaker

    Maximum service life Service life of various parts

    Arc chutes

    chutes

    Main

    contacts

    MCH

    Connecting-rod

    springs

    MX/XF

    releases

    NW08 to NW16types N1/H1/H2

    25000 10000 10000 12500 12500

    NW08 to NW16type L1

    25000 3000 10000 12500 12500

    NW20types H1/H2

    20000 440 V: 8000690 V: 6000

    440 V: 8000690 V: 6000

    10000 12500

    NW20 to NW25type H3

    20000 2000 440 V: 8000690 V: 6000

    10000 12500

    NW20type L1

    20000 3000 10000 10000 12500

    NW25 to NW40types H1/H2

    20000 440 V: 5000690 V: 2500

    440 V: 5000690 V: 2500

    10000 12500

    NW32 to NW40type H3

    20000 1250 440 V: 5000690 V: 2500

    10000 12500

    NW40b to NW63types H1/H2

    10000 1500 1500 5000 12500

    Recommended program for devices used under

    normal operating conditions:

    Ambient temperature: -5 C / +60C

    Normal atmosphere

    Parts requiring replacement, depending on the

    number of operating cycles.

    The following parts must be replaced periodically to lengthen the service life of thedevice (maximum number of operating cycles).

    Part replacement must be programmed on the basis of the data below, listing the

    service life of the various parts in numbers of O/C cycles at the rated current.

    Number of O/C cycles at the rated current

    Part Intervening entity Description orprocedure

    Arc chutes User.b see page 43.v

    Main contacts Inspection: userReplacement:

    Schneider After SalesSupport.

    b

    b

    see page 43.v

    MCH gear motor User.b see page 9.v

    Mechanicalinterlocks

    User.b

    Connecting-rod springs Schneider After SalesSupport.b

    MX/MN/XF User.b see page 10, 11.v

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    Arc chutesRemove the xing screws:

    types N1, H1 and H2 yNW 40: two screws

    types H1 and H2 uNW 40b, type H3: three screwstype L1: four screws.

    b

    b

    b

    b

    DB118432

    If the control unit has a maintenance indicator, there is

    no need to systematically check the contacts.

    If the contacts are worn, have the concerned polesreplaced by the Schneider Service centre.

    Maintenance operations

    DB118431

    DB118430

    E51279A

    Wear of main contactsRemove the arc chutes.

    Close the device and check the contacts.

    Note: It is normal to see variations of the wear indication between the poles of asingle device that is new or used. A new device does not have a pole in the indication

    area of contacts worn.

    b

    b

    Before undertaking any maintenance work, de-

    energise the installation and t locks or warnings in

    compliance with all applicable safety standards.

    Check the arc chutes:

    chamber not cracked

    separators not corroded.

    If necessary, replace the arc chutes.

    b

    b

    b

    Maintaining Masterpact

    performance

    Type A

    Contacts OK

    DB125643

    55

    DB125644

    Contacts worn

    D

    B125645

    Type B

    Contacts OK

    DB125643

    55

    DB125646

    Contacts worn

    DB125647

    NW 40b-63 H1, H2, NA, HA CEI

    NW 08-20 L1 CEI

    NW 50-60 L UL

    NW 08-60 L1 ANSI

    NW 08-40 H1 ANSI

    NW 10-40 HADC

    NW 08-40 NA, HA, H1, H2, HA10, H10, NAVY CEI

    NW 08-20 N1 CEI

    NW 20-40 H3 CEI

    NW 10-40 NDC, HDC

    NW 08-20 N UL

    NW 08-30 H UL

    NW 08-40 H2, H3 ANSI

    NW 40 EARTHING SWITCH

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    Disconnecting-contact clustersGrease the contacts using the grease listed on page 45,

    supplied by Schneider Electric

    Check the contacts as follows:Open the circuit breaker

    De-energise the busbars

    Disconnect the circuit breaker

    Remove the circuit breaker

    Check the contact ngers (no sign of copper should be visible)

    Replace any worn clusters.

    The position of the clusters must correspond to the table below.

    b

    b

    b

    b

    b

    b

    b

    b

    layout n 1 layout n 2 layout n 3 layout n 4 layout n 5

    Maintaining Masterpact

    performance

    DB118436

    DB118435

    DB118434

    DB118433

    DB118437

    Maintenance operations

    DB119174

    layout 2' layout 3'

    DB118513

    DB118516

    Rating NW08 NW10 NW16 NW20 NW25 NW32 NW40 NW40b NW63

    Type NW12 NW50

    N1 layout n 1

    2 clusters/pole

    H1 layout n 2 layout n 3 layout n 4 layout n 5 layout n 4

    4 clusters/pole 8 clusters/pole 12 clusters/pole 14 clusters/pole 24 clusters/pole

    H2

    H3

    L1 layout n 3 layout n 5

    8 clusters/pole 14 clusters/pole

    corrosion layout 2' layout 3' layout 5 layout 4

    protection 4 "GOLDEN" 8 "GOLDEN" clusters/pole 14 "GOLDEN" clusters/pole 24 "GOLDEN"

    clusters/pole clusters/pole

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    Ordering replacement parts

    Electrical accessoriesThe electrical accessories that may require replacement are the following:

    MCH gear motor

    MX opening release(s)XF closing release

    MN undervoltage release.

    See pages 33 and 34 in the "Auxiliaries for remote operation" section for their

    characteristics.

    b

    b

    b

    b

    E51335A

    Arc chutes1 arc chute:

    NW type N1

    NW08 to NW40 types H1

    and H2

    NW40b to NW63 types

    H1 and H2

    NW type H3

    NW type L1.

    b

    b

    b

    b

    NW08 to NW40:

    one chute per pole

    NW40b to NW63:

    two chutes per pole.

    b

    Disconnecting-contact clusters for standard NW1 cluster.b Number per circuit

    breaker, see table page 44.

    b

    Grease for disconnecting-contact clusters1 can for standard NW.b

    E46237A

    E46109A

    Front1 front for 3- or 4-pole

    devices.

    b 1 per device.b

    Crank1 crank per device.bE

    51336A

    Charging handleE46126A

    1 handle per device.b

    1 can for NW with

    corrosion protection.

    b

    Maintaining Masterpact

    performance

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    Maintaining Masterpact

    performanceTroubleshooting and solutions

    Problem Probable causes SolutionsCircuit breaker cannot be closed locally or remotely Circuit breaker padlocked or keylocked in the

    "open" position

    Circuit breaker interlocked mechanically in a

    source changeover system

    Circuit breaker not completely connected

    The reset button signalling a fault trip has not

    been reset

    Stored energy mechanism not charged

    MX opening shunt release permanently

    supplied with power

    MN undervoltage release not supplied with

    power

    XF closing release continuously supplied with

    power, but circuit breaker not "ready to close"

    (XF not wired in series with PF contact)

    Permanent trip order in the presence of a

    Micrologic P or H control unit with minimum voltage

    and minimum frequency protection in Trip mode

    and the control unit powered

    b

    b

    b

    b

    b

    b

    b

    b

    b

    disable the locking fonction

    check the position of the other circuit

    breaker in the changeover system

    modify the situation to release the interlock

    terminate racking in (connection) of the

    circuit breaker

    clear the fault

    push the reset button on the front of the

    circuit breaker

    charge the mechanism manually

    if it is equipped with a an MCH gear motor,

    check the supply of power to the motor. If the

    problem persists, replace the gear motor

    (MCH)

    there is an opening order.

    Determine the origin of the order. The ordermust be cancelled before the circuit breaker

    can be closed

    there is an opening order.

    Determine the origin of the order.

    check the voltage and the supply circuit

    (U > 0.85 Un).

    If the problem persists, replace the release

    cut the supply of power to the XF closing

    release, then send the closing order again via

    the XF, but only if the circuit breaker is

    "ready to close"

    Disable these protection functions on the

    Micrologic P or H control unit

    v

    v

    v

    v

    v

    v

    v

    v

    v

    v

    v

    v

    v

    Circuit breaker cannot be closed remotely but can be opened

    locally using the closing pushbutton

    Closing order not executed by the XF closing

    release

    b check the voltage and the supply circuit

    (0.85 - 1.1 Un).

    If the problem persists, replace the XF release

    v

    Unexpected tripping without activation of the reset button

    signalling a fault trip

    MN undervoltage release supply voltage too low

    Load-shedding order sent to the MX opening

    release by another device

    Unnecessary opening order from the MX

    opening release

    b

    b

    b

    check the voltage and the supply circuit

    (U > 0.85 Un)

    check the overall load on the distribution

    system

    if necessary, modify the settings of devices

    in the installation

    determine the origin of the order

    v

    v

    v

    v

    Unexpected tripping with activation of the reset button

    signalling a fault trip

    a fault is present :

    overload

    earth fault

    short-circuit detected by the control unit

    b

    b

    b

    determine and clear the causes of the

    fault

    check the condition of the circuit breaker

    before putting it back into service

    v

    v

    Instantaneous opening after each attempt to close the circuit

    breaker with activation of the reset button signalling a fault trip

    Thermal memory

    Transient overcurrent when closing

    Closing on a short-circuit

    b

    b

    b

    see the user manual of the control unit

    press the reset button

    modify the distribution system or the control-

    unit settings

    check the condition of the circuit breaker

    before putting it back into service

    press the reset button

    clear the fault

    check the condition of the circuit breaker

    before putting it back into service

    press the reset button

    v

    v

    v

    v

    v

    v

    v

    v

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    Problem Probable causes SolutionsCircuit breaker cannot be opened remotely, but can be opened

    locally

    Opening order not executed by the MX opening

    release

    Opening order not executed by the MN

    undervoltage release

    b

    b

    check the voltage and the supply circuit

    (0.7 - 1.1 Un).

    If the problem persists, replace the MX

    release

    drop in voltage insufcient or residual

    voltage (> 0.35 Un) across the terminals of

    the undervoltage release. If the problem

    persists, replace the MN release

    v

    v

    Circuit breaker cannot be opened locally Operating mechanism malfunction or welded

    contacts

    b contact a Schneider service centrev

    Circuit breaker cannot be reset locally but not remotely Insufcient supply voltage for the MCH gear

    motor

    b check the voltage and the supply circuit

    (0.7 - 1.1 Un).

    If the problem persists, replace the MCH

    release

    v

    Nuisance tripping of the circuit breaker with activation of the reset

    button signalling a fault trip

    Reset button not pushed-in completelyb push the reset button in completelyv

    Impossible to insert the crank in connected, test or disconnected

    position

    A padlock or keylock is present on the chassis

    or a door interlock is present

    b disable the locking functionv

    Impossible to turn the crank The reset button has not been pressedb press the reset buttonv

    Circuit breaker cannot be removed from chassis Circuit breaker not in disconnected position

    The rails are not completely out

    b

    b

    turn the crank until the circuit breaker is in

    disconnected position and the reset button

    out

    pull the rails all the way out

    v

    v

    Circuit breaker cannot be connected (racked in) Cradle/circuit breaker mismatch protection

    The safety shutters are locked

    The disconnecting-contact clusters are

    incorrectly positioned

    Cradle locked in disconnected position

    The reset button has not been pressed,

    preventing rotation of the crank

    The circuit breaker has not been sufciently

    inserted in the cradle

    b

    b

    b

    b

    b

    b

    check that the cradle corresponds with

    the circuit breaker

    remove the lock(s)

    reposition the clusters

    disable the cradle locking function

    press the reset button

    insert the circuit breaker completely so

    that it is engaged in the racking mechanism

    v

    v

    v

    v

    v

    v

    Circuit breaker cannot be locked in disconnected position The circuit breaker is not in the right position

    The cranck is still in the cradle

    b

    b

    check the circuit breaker position by

    making sure the reset button is out

    remove the crank and store it

    v

    v

    Circuit breaker cannot be locked in connected, test or

    disconnected position

    Check that locking in any position is enabled

    The circuit breaker is not in the right position

    The cranck is still in the cradle

    b

    b

    b

    contact a Schneider service centre

    check the circuit breaker position by

    making sure the reset button is out

    remove the crank and store it

    v

    v

    v

    The crank cannot be inserted to connect or disconnected the

    circuit breaker

    The rails are not completely inb push the rails all the way inv

    The right-hand rail (chassis alone) or the circuit breaker cannot be

    drawn out

    The crank is still in the chassisb remove the crank and store itv

    Maintaining Masterpact

    performanceTroubleshooting and solutions

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    Checking Masterpact

    operating conditions

    E51261B

    E51262B

    Test

    E51260B

    Tes t

    Ambient temperatureMasterpact NW devices can operate under the following temperature conditions:

    the electrical and mechanical characteristics are stipulated for an ambient

    temperature of -5 C to +70 Ccircuit-breaker closing is guaranteed down to -35 C

    Masterpact NW (without the control unit) can be stored in an ambient temperature

    of -40 C to +85 C

    the control unit can be stored in an ambient temperature of -25 C to +85 C.

    Extreme atmospheric conditionsMasterpact NW devices have successfully passed the tests dened by the following

    standards for extreme atmospheric conditions:

    IEC 68-2-1: dry cold at -55 C

    IEC 68-2-2: dry heat at +85 C

    IEC 68-2-30: damp heat (temperature +55 C, relative humidity 95%)

    IEC 68-2-52 level 2: salt mist.

    Masterpact NW devices can operate in the industrial environments dened by

    standard IEC 947 (pollution degree up to 4).

    It is nonetheless advised to check that the devices are installed in suitably cooled

    switchboards without excessive dust.

    Masterpact NW devices with corrosion protection have successfully passed the tests

    dened by the following standards for extreme atmospheric conditions:

    IEC 68-2-42: atmospheres containing sulphur dioxide (SO)

    IEC 68-2-43: atmospheres containing hydrogen sulphide (HS).

    VibrationsMasterpact NW devices resist electromagnetic or mechanical vibrations.

    Tests are carried out in compliance with standard IEC 68-2-6 for the levels required

    by merchant-marine inspection organisations (Veritas, Lloyd's, etc.):

    2 to 13.2 Hz: amplitude 1 mm

    13.2 to 100 Hz: constant acceleration 0.7 g.

    Excessive vibration may cause tripping, breaks in connections or damage tomechanical parts.

    b

    b

    b

    b

    b

    b

    b

    b

    b

    b

    b

    b

    Tes t

    Environmental conditions

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    28/28

    E51263B

    AltitudeMasterpact NW devices are designed for operation at altitudes under 2000 metres.

    At altitudes higher than 2000 metres, the modications in the ambient air (electricalresistance, cooling capacity) lower the following characteristics.

    Altitude (m) 2000 3000 4000 5000

    Dielectric resistance 3500 3150 2500 2100voltage (V)

    Average insulation 1000 900 700 600level (V)

    Maximum utilisation 690 590 520 460voltage (V)

    Average thermal 1 x In 0.99 x In 0.96 x In 0.94 x Incurrent (A) at 40 C

    E51264B

    Electromagnetic disturbancesMasterpact NW devices are protected against:

    overvoltages caused by devices that generate electromagnetic disturbances

    overvoltages caused by an atmospheric disturbances or by a distribution-system

    outage (e.g. failure of a lighting system)

    devices emitting radio waves (radios, walkie-talkies, radar, etc.)

    electrostatic discharges produced by users.

    Masterpact NW devices have successfully passed the electromagnetic-compatibility

    tests (EMC) dened by the following international standards:

    IEC 947-2, appendix F

    IEC 947-2, appendix B (trip units with earth-leakage function).

    The above tests guarantee that:no nuisance tripping occurs

    tripping times are respected.

    b

    b

    b

    b

    b

    b

    b

    b

    CleaningNon-metallic parts:

    never use solvent, soap or any other cleaning product. Clean with a dry cloth only

    Metal parts:

    clean with a dry cloth whenever possible. If solvent, soap or any other cleaning

    product must be used, make sure that it does not come into contact with

    non-metallic parts.

    b

    b

    2000m

    Tes t

    Tes t

    Checking Masterpact

    operating conditionsEnvironmental conditions


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