— PRODUCT OVERVIEW Metal-oxide surge arresters Protection for medium-voltage systems, traction and gas-insulated switchgear
—PRODUC T OVERVIE W
Metal-oxide surge arresters Protection for medium-voltage systems, traction and gas-insulated switchgear
—ABB produces metal-oxide surge arresters for different applications such as traction and railway, distribution networks, industrial applications, cable protection, switchgear and others.
— Table of contents
Surge arresters for medium-voltage systems 4
Surge arresters for AC traction systems 8
Surge arresters for DC traction systems 10
Surge arresters for high-voltage gas-insulated switchgear 12
Monitoring systems for surge arresters 14
Voltage limiting device to protect against impermissible ‘touch’ voltage 15
Design and testing – quality in a foreground 1
—Surge arrestersfor medium-voltage systems
The protection of medium-voltage systems is not limited to protection of transformers. Electrical equipment such as generators, motors, overhead lines, capacitors, cables and cable sheath also require their own surge arresters.
Overvoltages in electrical supply systems result from the effects of lightning incidents and switching actions and cannot be avoided. They endanger the electrical equipment because, for economic reasons, the insulation cannot be designed to withstand all possible cases.
The aim of overvoltage protection is to guarantee an uninterrupted supply of electrical energy with high voltage stability to the greatest degree possible. Therefore, the costs for a set of surge arresters are not the primarily consideration, but the costs that may arise on a long-term basis if adequate overvoltage protection is not used.
Overvoltage protection that is accurately ap plied reduces: • Outages of lines and substations • Interruptions of critical manufacturing pro cesses that
demand high voltage stability • Costs due to interruptions in the energy supply • Costs for the replacement and repair of electri cal
equipment • Ageing of the insulation (e.g. cables) • Maintenance work
In fact, all electrical equipment and installations in high- voltage and medium-voltage systems need overvoltage protection. In particular, the following equipment needs protection:
• Transformers• Cables and cable sheaths• Capacitors and capacitor banks• Overhead lines• Rotating machines (motors and generators)• Power electronics• Coils and line traps• Traction equipment (rolling stock and power supply)
AC and DC
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SU R G E A R R E S TER S FO R M ED I U M -VO LTAG E S Y S TEMS 5
—ABB’s Surge Arresters
Modern metal-oxide surge arresters with direct silicone molding cover most requirements. In recent decades, they have proved to be the most reliable protection elements in the system.
The surge arresters limit harmful overvoltages, which are generated in the network by lightning strikes or switching actions and thereby improve the availability and security of the power supply. The surge arresters fulfill special require-ments regarding ambient conditions, energy handling capa-bility, protection levels and stability of service.
This product overview is intended to facilitate selection of the suitable arrester based on application examples.
How to use the selection tablesThe surge arresters are grouped by IEC class and application group. In the upper part of the table under each group, you can find basic technical information. The lower section is a selection table, where you can find application recommen-dations for each of ABB’s surge arresters.
The left column of the selection table lists the various fields of application or protected equipment. The recommended arresters for those applications are marked with black dots in the respective rows.
—Additional applications and solutions not mentioned in this overview are also possible. To know more: abb.com/arrestersonline
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POLIM-D MWK POLIM-K POLIM-I..N POLIM-S..N POLIM-H..N
Maximum system voltage Us , kV 1) 52 52 52 72 72 72
Continuous operating voltage Uc , kV 4-36 4-44 4-44 4-44 4-44 4-44
Rated voltage Ur , kV 5-45 5-55 5-55 5-55 5-55 5-55
Arrester class 2) DH SL SL SL SM SH
Specified short-term load, Nm 207 153 250 2240 3840 4000
Rated short-circuit current, kArms 20 20 50 40 50 63
Repetitive charge transfer Qrs , As 0.5 1.6 1.0 1.6 2.0 2.4
Recommended applications:
Distribution transformers, pole mounted transformers ● ●
Arc furnace transformer, power transformer ● ●
Overhead lines ● ● ●
Air-insulated switchgear ● ●
Reactors, PLC traps, other MV equipment ●
Capacitor banks, filters ● ● ●
MV Cable and cable termination ● ● ●
Motors and generators ● ● ●
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—Surge arrestersfor medium-voltage systems
1) For neutral arresters can be used in systems with higher system voltage2) According to IEC 60099-4. The arrester classes correspond to the line discharge classes as follows: DH-class 1, SL - class 2, SM - class 3, SH - class 4 and 5.
POLIM-D..PI MWD POLIM-C..N POLIM-C..LB POLIM-R..N MVR
Maximum system voltage Us , kV 1) 52 52 7.5 52 1 1
Continuous operating voltage Uc , kV 4-42 4-44 0.9-7.5 2.3-4.8 0.11-0.78 0.44-6.6
Rated voltage Ur , kV 5-52.5 5-55 1.13-9.38 2.88-6.0 0.11-0.78 0.56-8.3
Arrester class 2) DH SL SL SL Special Special
Recommended applications:
Air-insulated switchgear ●
Gas-insulated switchgear ●
HV cable sheath ● ● ●
Power electronics ● ● ●
Secondary equipment ● ● ●
Motor ● ● ●
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1) For neutral arresters can be used in systems with higher system voltage2) According to IEC 60099-4. The arrester classes correspond to the line discharge classes as follows: DH-class 1, SL - class 2, SM - class 3, SH - class 4 and 5.
PRO D U C T OV E RV I E W SU R G E A R R E S TER S
—Surge arrestersfor AC traction systems
ABB offers a complete range of metal-oxide surge arresters for AC traction systems, intended for fixed installations and rolling stock.
—To know more about ABB’s portfolio offering for railways, please visit abb.com/railway
These arresters fulfil especially high electrical and mecha-nical requirements for application in traction systems. Their installation increases the availability and security of the power supply and the railway service too.
The arresters can be installed in the systems with voltage frequency of 15 to 62 Hz, thus they are suitable both for rolling stock and for fixed installations (infrastructure).
Surge arresters pass severe shock and vibration type tests which allow them to be installed on the top of high-speed trains.
The fire and smoke safety tests are performed to ensure the best fire safety.
We offer to surge arresters various types of accessories that allow solid installation on a locomotive to avoid too high vibrations and stress.
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POLIM-I..N POLIM-S..N POLIM-H..N POLIM-C..N POLIM-R..N
Continuous operating voltage Uc , kV 4-44 4-44 4-44 0.9-7.5 0.11-0.78
Rated voltage Ur , kVrms 5-55 5-55 5-55 1.13-9.38 0.11-0.78
Arrester class SL SM SH SL Special
Repetitive charge transfer Qrs , As 1.6 2.0 2.4 1.6 Special
Rated thermal energy Wth , kJ/kV (Ur) 5.0 8.0 12.0 5.0 12.0 or 24.0
Recommended applications:
Rolling stock ● ● ●
High speed trains ● ●
Fixed installation ● ● ● ●
Power electronics and other secondary equipment ● ●
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—Surge arrestersfor DC traction systems
ABB’s metal-oxide surge arresters for DC traction systems are developed and tested with reference to IEC 62848-1 and EN 50526-1.
POLIM-C..HD POLIM-C..ND POLIM-R..ND POLIM-H..ND POLIM-H..SD POLIM-X..ND POLIM 4,5 ID
DC class DC-A DC-A DC-B DC-B DC-B DC-C DC-C
Nominal system voltage Un 10, kV 0.6-3.0 0.6-3.0 0.6-3.0 0.6-3.0 0.6-3.0 0.6-3.0 0.6-3.0
Continuous operating voltage Uc 10, kV 1.0-4.7 0.56-4.7 0.14-1.0 1.0-4.7 0.14-4.2 1.0-4.7 4.5
Energy withstand capability W, kJ/kV 4.5 4.5 9.5 or 19 9.5 9.5 28 45
Recommended applications:
Rolling stock ● ● ● ● ● ●
High speed trains ● ●
Fixed installation A1 function ● ● ● ● ●
Fixed installation A2 function ● ● ● ●
Power electronics and other secondary equipment ● ● ●
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The standards specifically address metal-oxide surge arresters without gaps for application in DC traction systems up to 3 kV nominal voltage.
Additionally the arresters fulfill the requirements for A1/A2 arresters according to the VDV recommendation 525:• A1 – overvoltage protection of equipment connected to
traction supply voltage• A2 – overvoltage protection for apparatus connected to
the running rails
To ensure the mechanical integrity of the MO surge arrester and the stiffness of the silicone housing under extreme wind loads, MO surge arresters were subjected to aerodynamic forces in a wind tunnel test. This proves that the MO surge arrest ers for application on rolling stock can be used with-out restrictions on high-speed trains.
PRO D U C T OV E RV I E W SU R G E A R R E S TER S
—To know more about ABB’s portfolio offering for railways, please visit abb.com/railway
POLIM-C..HD POLIM-C..ND POLIM-R..ND POLIM-H..ND POLIM-H..SD POLIM-X..ND POLIM 4,5 ID
DC class DC-A DC-A DC-B DC-B DC-B DC-C DC-C
Nominal system voltage Un 10, kV 0.6-3.0 0.6-3.0 0.6-3.0 0.6-3.0 0.6-3.0 0.6-3.0 0.6-3.0
Continuous operating voltage Uc 10, kV 1.0-4.7 0.56-4.7 0.14-1.0 1.0-4.7 0.14-4.2 1.0-4.7 4.5
Energy withstand capability W, kJ/kV 4.5 4.5 9.5 or 19 9.5 9.5 28 45
Recommended applications:
Rolling stock ● ● ● ● ● ●
High speed trains ● ●
Fixed installation A1 function ● ● ● ● ●
Fixed installation A2 function ● ● ● ●
Power electronics and other secondary equipment ● ● ●
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—Surge arrestersfor high-voltage gas-insulated switchgear
ABB is a leading manufacturer of surge arresters for high-voltage gas-insula ted switchgear (HV GIS). The special design with high-field metal-oxide resistors allows reduction of the size of surge arresters and the amount of SF6 inside.
Surge arresters are used to protect the insulation of gas- insulated switchgear and the connecting cables and transformers against all kinds of transient lightning and switching overvoltages.
The high-field MO resistors used in ABB’s GIS surge arrest-ers ensure their compactness, which is a major feature for HV GIS. These surge arresters are designed and type-tested according to IEC 62271-203 and IEC 60099-4.
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AZ04E AZ041 AZ14D/E AZ14F/G AZ32M 1) AZ32H
ABB GIS product ELK-04C ELK-04 ELK-14C ELK-14 ELK-3C ELK-3
Class (acc. to IEC 60099-4) SM-SH SM-SH SM-SH SM-SH SH SH
Maximum system voltage Us , kV 145 170 245 300 420 550
Continuous operating voltage Uc , kV 58-96 125-173 58-173 58-202 211-317 288-374
Rated voltage Ur , kV 72-120 156-216 72-216 72-252 264-396 360-468
Phases per enclosure 3 3 1 1 1 1
1) Also available with an oil/SF6 bushing for direct mounting on power transformers.
GIS surge arrester internal design
—To know more about ABB’s port-folio offering for HV GIS, please visit abb.com/high-voltage/gis
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3
1
4
Uc > 116 kV
—1 Enclosure2 Grading electrode3 Metal oxide resistor discs4 Bushing for leakage current measure-
ment and surge monitoring
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Surge arresters monitoring systems SAM 3.0 ABB AbilityTM Wireless Monitor
Climatic conditions Sealed water-tight design, IP65 Sealed water-tight design, IP67
Surge current amplitude measurement, kA Classification of surge current amplitude in three classes: 0.1-1/1-10/10-100
0.1-100
Measurement range of leakage current (mApeak) 0-20 mA 0-12 mA
Memory capacity 2000 events One month on device, unlimited in the cloud
Power supply Battery Battery (recharges through solar panel)
Communication Display Wireless monitor: transmission of measurements via LoRaWAN to the cloud
Additional features
SAM sensor galvanically isolated from (display can be mounted apart from surge arrester) Registering time-stamp of event
Measurement of humidity and ambient temperature Registering time-stamp of event
SAM 3.0 is capable of sensitively registering surges from lightning and switching in combination with total leakage current. The values are shown digitally on an electronic display. It consists of a current sensor with selectable cable lengths and a display device which can be mounted apart from the arrester.
ABB Ability™ Wireless Monitor for surge arrester is a condi-tion monitoring solution that makes predictive maintenance possible for almost all high- and medium-voltage surge arresters.
By monitoring and analyzing data of leakage current and overvoltage discharge currents, it enables substation and grid operators to optimize maintenance. The solution helps to reduce downtime, increase grid reliance and reduce maintenance costs.
—To know more about ABB’s portfolio offering for monitoring systems, please visit abb.com/arrestersonline
—Monitoring systemsfor surge arrester
Apart from the surge arresters portfolio ABB offers the monitoring systems to monitor the leakage current during normal operation and register surge current pulses.
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Impermissible ‘touch’ voltages can occur in DC traction systems between track systems (return conductors) and earthed metal structures, as the track systems are laidinsulated.
The hybrid voltage limiters (HVL) protect against electric shock.
The HVL limits ‘touch’ voltages regardless of whether they are purely DC or mixed voltages (both DC and AC voltages) to the permissible limit values defined for railway installa-tions, workshops and other locations.
—Voltage limiting deviceto protect against impermissible ‘touch’ voltage
The voltage limiting device is represented with hybrid voltage limiter (HVL), which is available in two arrangements, limiting the voltage up to 60 V and up to 120 V.
Type HVL-60 HVL-120
Normal triggering voltage, V 60 120
DC short-time withstand current at 100 ms - recoverable, kA 2.1 2.1
DC short-time withstand current at 100 ms - non-recoverable, kA 20 20
Discharge current In , kA 25 25
High current impulse with wave 8/20 µs, As 80 80
High current impulse with wave 10/350 µs, As 12 12
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—Design and testing –quality in a foreground
With surge arresters of ABB you buy a complete solution to overvoltages in your network.
Being manufactured “under one roof” ABB’s resistors and surge arresters are under constant supervision by the quality department. The surge arresters are designed at ABB’s local and global technology centers and conform to the latest standards.
Basic research, continuous improvement and active parti-cipation and compliance with international organizations, such as IEC, CENELEC and Cigré ensure that ABB leads in the field of overvoltage protection. A more detailed overview about applications of ABB’s surge arresters can be found in the Application guidelines for overvoltage protection.Cooperation with other ABB units worldwide is a key factor for continuous improvement. Meeting new challenges within the industry enables us to offer complete solutions to the customer.
With research and testing facilities located inside the fac-tory premises, ABB Wettingen can perform additional tests according to the customer’s requirements and thereby guarantee the best performance of its products through their lifetime.
—As a technology pioneer, ABB plays a leading role in the development and production of surge arresters; from strategic supplies and quality audits of all sub-suppliers through to production and testing of metal-oxide resistors and surge arresters.
—In ABB we value quality andcustomer satisfaction. Therefore,we perform thorough tests on our products and components.
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Additional informationThe information given in this document inclusive of all illustrations covers key technical data and application options. We reserve the right to make technical changes or modify the contents of this document without prior notice. With regard to purchase orders, the agreed particulars shall prevail. ABB does not accept any responsibility whatsoever for potential errors or possible lack of infor-mation in this document. We reserve all rights in this document and in the sub-ject matter and illus-trations contained therein. Any reproduction, disclosure to third parties or utilization of its con-tents – in whole or in parts – is forbidden without prior written consent of ABB.Copyright © 2019 ABBAll rights reserved
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© Copyright 2019 ABB. All rights reserved. Specifications subject to change without notice.
—ABB Switzerland Ltd.High Voltage ProductsSurge ArrestersJurastrasse 45CH-5430 Wettingen/SwitzerlandPhone +41 58 585 29 11E-Mail [email protected]
abb.com/arrestersonline