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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

info@avesco.ch 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

7/25/2019 Laporan OJT AK3

26/284704443720AA - 09/2009

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

7/25/2019 Laporan OJT AK3

27/2848 04443720AA - 09/2009

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

7/25/2019 Laporan OJT AK3

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