Motor Surge Suppressors and Cable Considerations
|
|
- Berenice Merritt
- 5 years ago
- Views:
Transcription
1 Motor Surge Suppressors and Cable Considerations Understanding the growing need for motor surge protection in SA Arveen Gobind Pragma Condition Monitoring (Martec)
2 Agenda Introduction Network Motor Surge Protection System Motor and Breaker Surge Suppressor Cables Case Studies Conclusion Questions
3 Introduction Need for surge suppressors
4 Introduction Transients Load Shedding Loads are disconnected and reconnected and the transient surge suppressor protection needs to operate much more frequently Green energy Cannot be depended upon at all times. The network needs to be supported by generators and UPS facilities in order to supply this shortfall, Hence increased switching operations are experienced Non-linear loads Capacitors, chokes, VSD, UPS Breaker Switching Pre-strikes Re-strikes Fault clearing Protection Trips Lightning
5 Motor BIL Rated voltage Rated lightning-impulse voltage withstand (peak) Rated steep-front-impulse voltage withstand (peak) UN UP UP' kv kv kv 2, , , , , kv motors: Rated lightning impulse withstand voltage (1,2/50 μs wave) = 31 kv peak, main insulation Rated steep-front impulse withstand voltage (0,2 μs wave) = 20 kv peak, interturn insulation Rated power frequency withstand voltage (50 Hz) = 15 kv rms.
6 Surge Suppressor Protection Intervention 11 kv System Without Suppressor Measurement Criteria: Amplitude Clipping Envelope Decay time Re-strike Elimination Successful Result of Surge Suppressor Intervention
7 Surge Suppressor Protection Intervention Normal mains frequency conditions: the impedance of the capacitive elements is very high, effectively "disconnecting the resistive components from the system. High frequency transient conditions: the impedance of the capacitive elements is low with respect to the resistive elements, effectively "inserting" the resistive components in the power system as a cable-terminating network. Voltage refraction and reflection of steep wave-fronts are minimised, voltage doubling (or even higher) is avoided, and high frequency re-strike are eliminated by surge suppressor effectiveness. On-load tripping events (and operator related switching) transients are minimised, maintaining the winding integrity.
8 Surge Suppressor Suppressor Cables Connections Surge suppressors with porcelain bushings require the use of flexible connections to the bushings to avoid vibration or shock being transmitted to the bushings, in service and during transportation. Care should be taken not to over tighten the nuts on the bushing and earth studs. Torqueing instructions must be adhered to, avoiding cracks and stress points. Electrical Discharge may occur should these be ignored, hence weakening the insulation. The resistance of the suppressor circuit will be altered and poses risk of malfunction operations.
9 Surge Suppressor Suppressor Cables Unlike installing medium voltage cables which are screened and are installed to the norm, a nonscreened connection cable should be installed with a clearance distance between phases and earth to avoid complications with discharges.
10 Surge Suppressor Suppressor Cables The discharge effect is the ionization of air around the conductor due to the electric fields generated by high voltage and can lead to deterioration of the silicone insulation system of the cables. To eliminate and reduce the problems the minimum recommended installation distances "d" (mm) between phases and to ground should be followed. Supplied by Nexans: Global experts in cables and cabling systems
11 Surge Suppressor Suppressor Cables Flexible Cables In the case of surge suppressors with flexible insulated connection leads must be directly connected to the machine terminals Typical Surge Suppressor Cable Example
12 Surge Suppressor Suppressor Cables Clearance Contraventions / Poor Installations A call for further research
13 Case Study Surge Suppressor Installation on Mill Motor A 6.6kV Mill motor experienced a winding failure during switching operations, which called for an investigation with recommendations to prevent recurrence. Upon inspection, an inter-turn fault on the stator windings was reported. The investigation proved that the installation of a surge suppressor at the motor terminals reduced high frequency switching transients and the effects experienced by the motor windings. Without Surge Protection With Surge Protection
14 Case Study Surge Suppressor Leads Investigation The cables are connected to the transient overvoltage surge suppressor and the required mains supply of the motor or terminations. This is for the protection against steep wave-front, short rise-time, high magnitude transient voltages generated by switching sources. Cable identification and type comparison tests for partial discharge of various voltage ranges Old Silicone Cable New Silicone Cable Siwo-Kul Cable kv Rating of Cable
15 Case Study Surge Suppressor Leads Investigation Partial discharge activities during different voltage ranges from 2 kv to 6,6 kv using controlled voltage measurements were recorded in the frequency and time domains. The cables connecting the surge suppressors will be at system voltage during operation and if not installed correctly will produce partial discharge that can deteriorate the insulation system and lead to failure over time.
16 Conclusion The need for motor surge suppressors are more now, due to the complexities imposed on SA s network. The installation process must be followed with strict quality control. The effectiveness of the implementation of surge suppressors are justified from the tests performed. Electrical Discharge monitoring is of utmost importance in ensuring a reliable protection system. The surge suppressor and leads must form part of a motor routine inspection Further investigation will be done as I am now presented with a motor protection evaluation project incorporating surge suppressors. On-line technologies will be used to detect electrical discharges and trended over time. The effects on surge protector leads will be further monitored with focus on clearances and routing.
17 Thank you LinkedIn Facebook Twitter Arveen Gobind Eng Consultant, Pragma Condition Monitoring / Martec arveen.gobind@pragmaworld.net
PROTEC Z. High Frequency Transient Surge Suppressors For protection of medium voltage motors, generators and dry type transformers
PROTEC Z High Frequency Transient Surge Suppressors For protection of medium voltage motors, generators and dry type transformers Eliminates interturn insulation failures Extends the life of machine insulation
More informationZORC Surge Suppressor. Operating Manual
ZORC Surge Suppressor Operating Manual High Frequency Transient Surge Suppressors For protection of medium and low voltage motors and transformers ZORC is a unique high frequency transient over voltage
More informationQuantum Chargers Enhanced AC Line Transient Immunity
Introduction Quantum Chargers Enhanced AC Line Transient Immunity By: Nasser Kutkut, PhD, DBA Advanced Charging Technologies Inc. This white paper outlines the most common AC power quality disturbances
More informationZORC Surge Suppressor. Operating Manual
ZORC Surge Suppressor Operating Manual High Frequency Transient Surge Suppressors For protection of medium and low voltage motors, transformers and generators Introduction Every year huge losses are incurred
More informationTechnical Requirements for High-voltage DC Power Feeding Interfaces of ICT equipment
Technical Requirements for High-voltage DC Power Feeding Interfaces of ICT equipment TR No. 176002 1.1.EDITION April 1st, 2015 Nippon Telegraph and Telephone Corporation Introduction This document describes
More informationCONTENTS 3 EN :2006
3 EN 60950-1:2006 CONTENTS INTRODUCTION...9 0 Principles of safety...9 0.1 General principles of safety...9 0.2 Hazards...10 0.3 Materials and components...14 1 General...15 1.1 Scope...15 1.2 Definitions...17
More informationRMCN22BD Analog Converter ma - for Zelio Analog
Characteristics Analog Converter - 4..20 ma - for Zelio Analog Main Commercial Status Range of product Product or component type Analogue input type Analogue output type Commercialised Zelio Analog Voltage/Current
More informationExternally Gapped Line Arresters Smart Solution for Stable Power Supply
Smart Solution for Stable Power Supply Metal-oxide surge arresters with external series gaps improve the reliability of transmission systems, and help eliminate not only lightning damages of transmission
More informationExternally Gapped Line Arresters Smart Solution for Stable Power Supply
Smart Solution for Stable Power Supply Metal-oxide surge arresters with external series gaps improve the reliability of transmission systems, and help eliminate not only lightning damages of transmission
More informationSurge Protective Device
SURGE PROTECTIVE DEVICE Surge Protective Device 20 R 320 Type Max. discharge current Imax/Iimp (ka) Number of poles (P) R: with alarm auxiliary contact Blank: without alarm auxiliary contact Max. continuous
More informationInstallation Instructions & User Manual
Installation Instructions & User Manual ZONEMASTER PRO AC Panel Transient Voltage Surge Suppressors The Wiremold Company In US: 60 Woodlawn Street, West Hartford, CT 06110 800-621-0049 FAX 860-232-2062
More informationCircuit Protection Application Note TBU Electronic Current Limiter GR-1089 Port Type 2 and 4 Ethernet Protection
Circuit Protection Application Note BU Electronic Current Limiter GR-1089 Port ype 2 and 4 Ethernet Protection About the Protection his application note details the BU device protection in an Ethernet
More informationReduction of Switching Surges in Large Industrial Motors Connected by Cables
I J C T A, 9(34) 2016, pp. 343-348 International Science Press Reduction of Switching Surges in Large Industrial Motors Connected by Cables Mohammed Sajid, B. P. Singh * and M. Suryakalavathi ** ABSTRACT
More informationCentral Power Research Institute, Medipally PO, Uppal, Hyderabad, Telangana. Discipline Electrical Testing Issue Date
Last Amended on 31.07.2015 Page 1 of 11 I. SWITCHGEAR EQUIPMENT 1. High Voltage switchgear & control gear and AB switches Ratings upto 1200 kv system Switching Impulse Voltage (Dry & Wet) Power Frequency
More informationTRI-SERVICE ELECTRICAL WORKING GROUP (TSEWG) 07/16/08 TSEWG TP-3: SURGE PROTECTOR PERFORMANCE AND EVALUATION CRITERIA
TSEWG TP-3: SURGE PROTECTOR PERFORMANCE AND EVALUATION CRITERIA SURGE PROTECTION DESIGN. Parallel Versus Series Protection. Surge protectors within the scope of this UFC should normally be of the parallel
More informationManual for overvoltage protection for LED luminaires rev 1
Kurtatsch, Italy, February 10, 2017 Manual for overvoltage protection for LED luminaires rev 1 Through the introduction of LED luminaires, substantial improvements have been achieved with respect to conventional
More informationLPI SG + SST Spark Gap Surge Filter
LPI SG + SST Spark Gap Surge Filter Features High performance surge protector for an operating voltage of 220-240Vac Encapsulated spark gap and SST capable of sustaining fault and over-voltage conditions
More informationLPI SG + SS480 Spark Gap Surge Filters
LPI SG + Spark Gap Surge Filters Features High performance surge protector for an operating voltage of 220-277Vac Encapsulated spark gap and technology capable of operation under fault /overvoltage conditions
More informationELG4125: System Protection
ELG4125: System Protection System Protection Any power system is prone to 'faults', (also called short-circuits), which occur mostly as a result of insulation failure and sometimes due to external causes.
More informationMaximize Your Uptime: Reducing Risk of Power Supply Failure
Maximize Your Uptime: Reducing Risk of Power Supply Failure White Paper presented by: Phoenix Contact P.O. Box 4100 Harrisburg, PA 17111-0100 Phone: 717-944-1300 Fax: 717-944-1625 Website: www.phoenixcontact.com
More informationThe following standards are the basis of design, manufacture, and test of SPD equipment: Guide for Surge Voltages in Low-Voltage AC Power Circuits
ENGINEERING BULLETIN Manufacturing & Test Standards for SPDs APT SPD/TVSS are manufactured and tested in accordance with applicable industry standards. UL Marks are found on APT equipment. These are the
More informationPROTEC Z LV the universal solution for transient switching protection for LV motors, generators, transformer LV secundaries, VSD and UPS equipment
PROTEC Z LV the universal solution for transient switching protection for LV motors, generators, transformer LV secundaries, VSD and UPS equipment NTSA has developed the ultimate solution for protecting
More informationSPM Series Plug-in Surge Protector Type 2/3 (Test Class II/III) Single & Three Phase Surge Arresters
The SPM series of modular surge protection devices provides protection of equipment connected to incoming low voltage AC power supplies against the damaging effects of transient over voltages caused by
More informationTechnical Data Sheet Medium Current Power Surge Filters
Technologies Technical Data Sheet Medium Current Power Surge Filters Features High performance surge protector for an operating voltage of 0-220Vac Designed to withstand fault and over-voltage conditions
More informationENGR. MARITES R. PANGILINAN, P.E.E.
ENGR. MARITES R. PANGILINAN, P.E.E. WHAT IS LOW VOLTAGE INSULATION COORDINATION AND WHY IT IS IMPORTANT WHERE DO SURGES COME FROM HOW DO SPDs WORK/TYPE OF SPDs SPD SPECIFICATIONS SPD COORDINATION /CASCADING
More informationSurge Protection. The effects of transient voltages on business and the benefits of installing Surge Protection Devices
Surge Protection The effects of transient voltages on business and the benefits of installing Surge Protection Devices Contents Executive Summary... 2 The Effects of Electrical Devices Failures... 3 Power
More informationSurge Protection Devices Type 1+2
Surge Protection Devices Type 1+2 Description The combined surge protection devices offer as an all-in-one solution lightning and surge-voltage in one device. They are in accordance with the requirement
More informationPOWER QUALITY (UNIT-3) ELECTRICAL TRANSIENT:
POWER QUALITY (UNIT-3) ELECTRICAL TRANSIENT: Transients are disturbances that occur for a very short duration (less than a cycle), and the electrical circuit is quickly restored to original operation provided
More informationIn the simplest terms, surge protective devices (SPDs) prevent damaging transient voltage surge levels from reaching the devices they protect.
How SPDs Work In the simplest terms, surge protective devices (SPDs) prevent damaging transient voltage surge levels from reaching the devices they protect. A useful analogy makes this clearer. Consider
More informationChapter J. Protection against voltage surges in LV. Contents. General. Overvoltage protection devices. Choosing a protection device
Chapter J Protection against voltage surges in LV 1 2 3 4 Contents General J2 1.1 What is a voltage surge? J2 1.2 The four voltage surge types J2 1.3 Main characteristics of voltage surges J4 1.4 Different
More informationLow Voltage and Medium Voltage Surge Protection
Low Voltage and Medium Voltage Surge Protection Chris M. Finen, P.E. Senior Application Engineer, Nashville TN 2018 Eaton Corporation. All rights reserved. Agenda Surge / Transient Basics Symptoms of Voltage
More information2 Principle of lightning protection
2 Principle of lightning protection The system for protecting a building against the effects of lightning must include: bprotection of structures against direct lightning strokes; bprotection of electrical
More informationSPM Series. Plug-in Surge Protection
SPM Series Plug-in Surge Protection The SPM series of modular surge protection devices provides protection of equipment connected to incoming low voltage AC power supplies against the damaging effects
More informationINTRODUCTION TO SPECIFYING SURGE PROTECTION SURGE PROTECTION NOTE 1 INTRODUCTION TERMS PROBABILITY OF SURGES APPEARING:
INTRODUCTION TO SPECIFYING SURGE PROTECTION SURGE PROTECTION NOTE 1 BY PETER WALSH, PE INDUSTRIAL SOLUTIONS ENGINEER INTRODUCTION Surge Protective Devices (SPDs) can protect electrical equipment from harmful
More informationSPM Series Plug-in Surge Protection
SPM Series Plug-in Surge Protection The SPM series of modular surge protection devices provides protection of equipment connected to incoming low voltage AC power supplies against the damaging effects
More informationLPI SST Surge Filters
LPI SST Surge Filters Features High performance surge protector for an operating voltage of 200-240Vac Designed to withstand fault and over-voltage conditions of up to 85Vac, as per IEC664 Impulse discharge
More informationProposal for Ethernet IEEE802.3 isolation requirements Rev.1
Power Matters. TM Proposal for Ethernet IEEE802.3 isolation requirements Rev.1 Arkadiy Peker August 30, 2017 1 Review current IEEE isolation based on Dylan Presentation What requirements are specified
More informationMedium Voltage Metal-Enclosed Harmonic Filter Systems
66 Carey Road Queensbury, NY 12804 Ph: (518) 792-4776 Fax: (518) 792-5767 www.nepsi.com sales@nepsi.com Medium Voltage Metal-Enclosed Harmonic Filter Systems General NEPSI s armorvar, medium voltage metal-enclosed
More informationSuppressing Transients: A New Approach
Page 1 of 5 Suppressing Transients: A New Approach By Rudy T. Wodrich and Tommy Mok, Schneider Electric, Bramalea, Ontario, Canada Power Quality, Apr 1, 2001 For years, transients generated on the utility
More informationCONNECTED EQUIPTMENT EQUIPMENT AND
Technical Note No. 9 August 2006 Power Quality and Reliablity Centre TRANSIENT OVERVOLTAGES ON THE ELECTRICITY SUPPLY NETWORK EFFECTS ON CONNECTED EQUIPTMENT EQUIPMENT AND THEIR MITIGATION This Technical
More informationLow voltage. Acti 9. the efficiency you deserve. Catalogue 03/2016
Low voltage Acti 9 the efficiency you deserve Catalogue 03/2016 schneider-electric.com 1 and 2 LV surge s 1 and 2 LV surge s (cont.) The 1 range of surge s meets the normative withstand capability of wave
More informationOPERATING MANUAL FOR THE 30KV A.C. TEST SET P123. Bicotest High Voltage Products Ltd
OPERATING MANUAL FOR THE 30KV A.C. TEST SET P123 Product: High Voltage AC Test Set Type: P123 Bicotest High Voltage Products Ltd Hellesdon Park Road, Drayton High Road, Norwich NR6 5DR United Kingdom Phone
More informationEach VariSTAR Type AZU arrester must pass the following production tests: 100% Physical Inspection 100% Leakage Current Test 100% RIV Test
Surge Arresters VariSTAR Type AZU Heavy-duty Distribution Class Under-oil MOV Arrester Electrical Apparatus 235-64 GENERAL The Cooper Power Systems VariSTAR Type AZU under-oil MOV arrester is designed
More informationBulletin 290/291 ArmorStart LT Distributed Motor Controllers Specifications
Power Circuit Control Circuit (External Source) Control Circuit (Internal Source) Short Circuit Current Rating (SCCR) Application Electrical Ratings Three-phase Number of Poles 3 Input Power Terminals
More informationBS th Edition wiring regulations Furse overview
BS 7671 18th Edition wiring regulations Furse overview Transient overvoltage protection TRANSIENT OVERVOLTAGE PROTECTION - RISK ASSESSMENT TO BS 7671 Furse electronic systems protection Enhanced solutions
More informationZelio Control-modular measurement and control relays 1
Presentation, description 1 106439 RM35 TM111MW Presentation Motor temperature measurement and 50MW and RM35 TM250MW monitor the following, on 3-phase supplies: correct sequencing of phases L1, L2 and
More informationAN4275 Application note
AN4275 Application note IEC 61000-4-5 standard overview Introduction The objective of this document is to briefly explain the IEC 61000-4-5 standards and to show the benefits of having a range of protection
More informationWelcome to the World of Transients. Transient Generation. The Nature of Transients. Externally Generated Transients. Lightning Generated Transients
Welcome to the World of Transients The Nature of Transients An electrical transient (surge, impulse, or spike) is a temporary excess in voltage and/or current on an electrical circuit that has been disturbed.
More informationModel Number Structure
Solid State Relays with Failure Detection Function G3PC Detects failures in SSR used for heater temperature control and simultaneously outputs alarm signal. This SSR supports the safe design of heater
More informationMONITORING ABSTRACT KEYWORDS. TRANSFORMERS MAGAZINE Special Edition: Bushings, 2017
MONITORING The difference between safe and reliable on-line bushing monitoring and false alarms often lays in the quality of the sensor design and the installation procedure ABSTRACT On-line monitoring
More informationData Sheet. Surge protection devices - A technical overview
Data Pack K Issued March 1997 232-5985 Data Sheet Surge protection devices - A technical overview Introduction This data sheet covers the following topics: Types of electrical disturbance. Sources of surges
More informationStandards Update Notice (SUN) Issued: August 11, 2017
Standard Information Standard Number: UL 621 Standard Name: Ice Cream Makers Standard Edition and Issue Date: 7 th Edition Dated May 7, 2010 Date of Revision: February 15, 2017 Date of Previous Revision
More informationG3PC. Model Number Structure. Solid State Relays with Failure Detection Function. Model Number Legend
Solid State Relays with Failure Detection Function G3PC Refer to Warranty and Application Considerations (page 1), Safety Precautions (page 4), and Technical and Safety Information (page 6). Detects failures
More information3 Design of the electrical installation protection system
J - Protection against voltage surges in LV 3 Design of the electrical To protect an electrical installation in a building, simple rules apply for the choice of b (s); b its protection system. 3.1 Design
More informationRevised Standards Provide Design Options for Primary and Secondary Protection TELECOM PROTECTION WHITE PAPER
TELECOM PROTECTION WHITE PAPER INTRODUCTION Telecommunications networks are subject to surges from lightning or power line faults, and the effects of these can be extremely detrimental to systems and equipment.
More informationInstruction manual. Output chokes 690V. Safety information 1. General 2. Mechanical installation 3. Electrical installation 4
Instruction manual Output chokes 690V Safety information 1 General 2 Mechanical installation 3 Electrical installation 4 Maintenance and servicing 5 Technical specifications 6 Copyright 2018 Legal information
More informationMitigation of Voltage Swells I
Mitigation of Voltage Swells I 3.2.1. Surge arresters and transient voltage surge suppressors Arresters and TVSS devices protect equipment from transient over voltages by limiting the maximum voltage,
More informationFundamentals of Thyristor Overvoltage Circuit Protection
Fundamentals of Thyristor Overvoltage Circuit Protection Thyristor Surge Protection Technology The Problem of Overvoltages Electronic components have been designed to function properly when used within
More informationSurge Protection for Surveillance Systems
Surge Protection for Surveillance Systems 1-in-1 Protection for Network Cameras 2-in-1 Protection for Power and Audio/Video Signals 3-in-1 Protection for Power, Audio/Video and PTZ Control Signals Application:
More informationRM4TR31 three-phase network control relay RM4-T - range V
Characteristics three-phase network control relay RM4-T - range 160..220 V Complementary [Us] rated supply voltage Control threshold undervoltage Control threshold overvoltage Output contacts Main Range
More informationC C CIRCUIT-BREAKERS Moulded-case (MCCB), general. 1. Introduction. 2. General description
CIRCUIT-BREAKERS C C81-21 CIRCUIT-BREAKERS - Contents 1. Introduction 2. General description 3. Rated voltages 3.1 Rated operational voltage (U e ) 3.2 Rated impulse withstand voltage (U imp ) 3.3 Rated
More informationRM4TA32 three-phase network control relay RM4-T - range V
Characteristics three-phase network control relay RM4-T - range 380..500 V Complementary [Us] rated supply voltage Output contacts Main Range of product Product or component type Relay type Product specific
More informationTransient Recovery Voltages (TRVs) for High Voltage Circuit Breakers - Harmonization of IEC and IEEE Standards
Transient Recovery Voltages (TRVs) for High Voltage Circuit Breakers - Harmonization of IEC and IEEE Standards R. Kirkland Smith Senior Member IEEE Manager Power Test Laboratory Eaton Denis Dufournet Chairman
More informationNational Standard of The People s Republic of China
Translated English of Chinese Standard: GB/T17626.5-2008 Translated by: www.chinesestandard.net Wayne Zheng et al. Email: Sales@ChineseStandard.net ICS 33.100 L 06 GB National Standard of The People s
More informationCPS block & CPS nano UL rd Ed. Surge protective devices (SPD)
V4 Cirprotec CPS block & CPS nano UL 1449 3rd Ed. Surge protective devices (SPD) Transient voltage surge suppressors (TVSS) Cirprotec, more than just protection Cirprotec, specialists in lightning and
More informationSURGE SUPPRESSOR INSTALLATION INSTRUCTIONS. Includes TDS-AR Alarm Relay and TDS-SC Surge Counter. ISSUE: 3 April
SURGE SUPPRESSOR INSTALLATION INSTRUCTIONS Handbook No: HB-HBCR-109 Copyright ISSUE: 3 April 2003 Includes TDS-AR Alarm Relay and TDS-SC Surge Counter www.erico.com INSIDE FRONT COVER (Blank) CONTENTS
More informationUS Catalog March Surge protective devices (SPDs) UL range
US Catalog March 017 Surge protective devices (SPDs) UL range Surge protective devices (SPDs) UL range Introduction 1 1 OVR surge protective devices Joslyn surge protective devices Marketing tools 4 US
More informationFigure 1. Storm Trapper H. E. arrester, external mount. Figure 2. Storm Trapper H.E. arrester, metal enclosed. use in Storm Trapper H.E. arresters.
Surge Arresters Storm Trapper H.E. (High Energy) Low-Voltage Distribution-class MoV Surge Arrester Electrical Apparatus 235-16 GEnErAL Cooper Power Systems Storm Trapper H.E. (High Energy), lowvoltage
More informationEthernet Protection A Whole Solution Han Zou, ProTek Devices
Ethernet Protection ------ A Whole Solution Han Zou, ProTek Devices Introduction: As Ethernet applications progress from 10BaseT to 10Gigabit and beyond, IC components are becoming more complicated with
More informationThe Wave Breaking Factor and it s Vital Role in Surge Protection Device Coordination. Hans Slagter, DEHN + SOHNE
The Wave Breaking Factor and it s Vital Role in Surge Protection Device Coordination Hans Slagter, DEHN + SOHNE Earthing, Bonding & Surge Protection Conference, Auckland 2012 Discussion topics 1. Introduction
More informationPRF1 12.5r/PRF1 Master/ PRD1 25r/PRD1 Master Type 1 and 2 LV surge arresters
Type 1 and 2 LV surge s The Type 1 range of surge s meets the normative withstand capability of wave type 10/350 μs (8/20 μs for Type 2 surge s). It is suitable for use with, TN-C and 230 V IT earthing
More informationSPD Catalogue. SPD Catalogue. for AC applications
SPD Catalogue SPD Catalogue for AC applications Eaton and Cooper united. Energizing a world that demands more. We deliver: Electrical solutions that use less energy, improve power reliability and make
More informationSurge Protector. Esma Khatun
Surge Protector Esma Khatun 1.04.17 Overall Size Electronic Usage Use of electronic equipment has increased Overall size of the equipment has decreased TIME Smaller more compact electronic devices have
More informationThis annex is valid from: to Replaces annex dated: Location(s) where activities are performed under accreditation
Location(s) where activities are performed under accreditation Head Office Utrechtseweg 310, Building no. R11 6812 AR Arnhem The Netherlands Location Abbreviation/ location code Utrechtseweg 310, Building
More informationSECTION SURGE PROTECTION DEVICES. A. Section includes Surge Protection Devices for low-voltage power, control, and communication equipment.
SECTION 26 43 00 SURGE PROTECTION DEVICES PART 1 - GENERAL 1.1 SUMMARY A. Section includes Surge Protection Devices for low-voltage power, control, and communication equipment. 1.2 DEFINITIONS A. ATS:
More informationCoordination of Surge protection devices
Coordination of Surge protection devices Design guide Surge arresters for commercial and industrial buildings Surge protection devices: how to choose them? coordination How to choose surge protection devices?
More informationOvervoltage Protection
Overvoltage Protection OVR Range FRSOX 0100 03 GB ABB Lightning Protection Group 1 Main causes of transient overvoltages The solution: ABB OVR Surge Protective Device Range Lightning strike A lightning
More informationMaking the Right Choices In Lightning & Surge Arrestors Some Basics:
Making the Right Choices In Lightning & Surge Arrestors Some Basics: It is a fact that the Highveld region of South Africa and Lesotho have amongst the highest lightning strikes per square km per annum
More informationApplication Techniques CENTERLINE 2100 Motor Control Centers
POWER SYSTEM CONSIDERATIONS FOR PRODUCT SELECTION Application Techniques CENTERLINE 2100 Motor Control Centers Power System Considerations for Product Selection i Power System Considerations for Product
More informationWhite Paper Transient Surges and Suppressor Technologies
White Paper Transient Surges and Suppressor Technologies 1457-001 White Paper Transient Surges and Suppressor Technologies Transient Surges and Suppressor Technologies Metal Oxide Varistor (MOV) versus
More informationIt is the job of the protection system equipment to recognize and remove the fault.
Protection 1 (read section 13.0 of text) 1.0 Introduction Faults do not occur that frequently 1/year/100 miles of transmission is typical. Distribution systems may see more than this. However, when they
More informationSupplement to Instruction Manual
Supplement to Instruction Manual Compact Inverter 0 V series: FRN0001 to 00C2S-2U 400 V series: FRN0002 to 0011C2S-4U Single-phase 0 V series: FRN0001 to 0012C2S-7U Thank you for purchasing our FRENIC-Mini
More informationBulletin 294 ArmorStart LT Distributed Motor Controllers Feature Diagram
Feature Diagram E Feature Diagram On/Off Switch Wiring Access LockOut/TagOut Provision HOA Keypad (optional) Status and Diagnostic LEDs Reset IP Address Switches ECM (Electronic Control Module) Gland Plate
More informationRE9RA21MW7 off-delay timing relay s V AC -
Characteristics off-delay timing relay - 3..300 s - 240 V AC - solid state Main Range of product Product or component type Discrete output type Component name Time delay type Time delay range [Us] rated
More informationRelion 611 series. 611 series Type Test Certificate
Relion 611 series 611 series Document ID: 1MRS757466 Issued: 2016-02-22 Revision: B Product version: 2.0 Copyright 2016 ABB. All rights reserved Table of contents Table of contents Section 1 Section
More informationRE22R2QTMR Star-Delta Timing Relay s 300h V AC/DC - 2C/O
Characteristics StarDelta Timing Relay 0.05s 300h 24 240V AC/DC 2C/O Main Range of product Product or component type Discrete output type Device short name Nominal output current Zelio Time Modular timing
More informationLightning and Surge Protection of Photovoltaic Installations. Leutron GmbH 2013 Leinfelden-Echterdingen, Germany
Lightning and Surge Protection of Photovoltaic Installations 1 Lightning and Surge Protection for PV Installations 2 Safeguard from Risks Ups, that was the insurance policy of my house!! 3 Why Lightning
More informationTDX Series. Transient Discriminating TM TVSS
TDX Series Transient Discriminating TM TVSS TDX Series TDX150 is ideal for service entrance protection. Best Value Engineered Protection With emphasis on efficiency and value, ERICO developed the TDX Series.
More informationSolid-state Timer H3YN
Solid-state Timer H3YN Miniature Timer with Multiple Time Ranges and Multiple Operating Modes Minimizes stock. Pin configuration compatible with MY Power Relay. Standard multiple operating modes and multiple
More informationGLOSSARY OF TERMS. Surge and Lightning Protection ERICO Inc.
GLOSSARY OF TERMS Surge and Lightning Protection ERICO Inc. Air Termination - shall mean that part of a lightning protection system designed to capture the lightning strike. Normally is mounted on the
More informationRM4LA32M liquid level control relay RM4-L V AC
Characteristics liquid level control relay RM4-L - 220..240 V AC Complementary [Un] rated nominal voltage Operating voltage tolerance Width Output contacts Maximum electrode voltage Maximum electrode current
More informationEquipment protection
Equipment protection Serie K Risk of electrical surges Equipment protection 5.000.000 ightning strikes per day 61% Electrical damages caused by surges 30k verage current of a lightning strike ightning
More informationOvervoltage Protection Devices
Siemens AG 2010 Overvoltage Protection Devices /2 Introduction /3 Lightning Arresters, Type 1 /5 Combination Surge Arresters, Type 1 and Type 2 /7 Surge Arresters, Type 2 /11 Surge Arresters, Type 3 /12
More informationSpecifications, Installation, and Operating Instructions
Specifications, Installation, and Operating Instructions Model: Power Vantage AC Panel Protector CAUTION: The installation of a surge protection device () must be done by qualified electrical personnel.
More informationRM17TG. Main. Product or component type. Product specific application. Relay monitored parameters. Switching capacity in VA 250 V AC
Characteristics phase control relay RM17-T - range 183..484 V AC Complementary Maximum switching voltage Minimum switching current [Us] rated supply voltage Supply voltage limits Control circuit voltage
More informationALLTEC PROTECTION PYRAMID TM FOR PHOTOVOLTAIC SOLAR FIELD
64 Catalyst Drive Canton, North Carolina, 28716 USA +1.828.646.9290 +1.828.646.9527 (Fax) +1.800.203.2658 (Toll Free) www.alltecglobal.com ALLTEC PROTECTION PYRAMID TM FOR PHOTOVOLTAIC SOLAR FIELD Photovoltaic
More informationDEHN tests and analyses DEHN Test Centre.
DEHN tests and analyses DEHN Test Centre www.dehn-international.com 2 Powerful: Lightning current tests up to 400 ka (10/350 µs) DEHN protects. Our task is to protect persons, buildings, installations
More informationMV Network Switchgear, Protection and Control
MV Network Switchgear, Protection and Control Ravinder Negi Manager, Services Execution INDIA Schneider Electric, New Delhi. Agenda An Overview MV Network Basic Definitions Circuit breaker Switchgear Control
More informationMedium Voltage Metal-Enclosed Power Capacitor Banks
66 Carey Road Queensbury, NY 12804 Ph: (518) 792-4776 Fax: (518) 792-5767 www.nepsi.com sales@nepsi.com Medium Voltage Metal-Enclosed Power Capacitor Banks General Northeast Power System s (NEPSI's) medium
More informationBOX TRANSDUCER SMALL SIZED AC TRANSDUCER 90 SERIES
SMALL SIZED AC TRANSDUCER 90 SERIES ATT2-91A (120 40 130mm/0.5kg) WTT2-92A-33 (120 56 130mm/0.7kg) SPECIFICATIONS Continued on the next page SMALL SIZED AC TRANSDUCER 90 SERIES Standard of auxiliary supply:
More information