ABB POLIM-D User manual

ABB

Operating instructions Surge arrester

Type POLIM®-D

Publication No. 1HC0010173 AB

With ABB metal-oxide resistors and

silicone housing

Without gaps

For indoor and outdoor use

Mounting and installation, maintenance,

transportation, storage and disposal

Issued by: Contact information:

ABB Switzerland Ltd.

High Voltage Products

Surge Arresters

Jurastrasse 45

CH-5430 Wettingen 1

Phone: +41 (0)58 585 29 11

Telefax: +41 (0)58 585 55 70

E-Mail: [email protected]

Internet: www.abb.com/arrestersonline

We reserve the right to make changes.

We reserve all rights to this document and the object presented within. Reproduction, passing on to third parties or utilisa-

tion of the contents is not permitted without our express consent.

Operating instructions for POLIM©-D surge arrester ABB

2 EN Doc. 1HC0010173 AB

Table of contents

1. ABOUT THIS DOCUMENT 3

1.1. Validity 3

1.2. Target group 3

1.3. Copyright 3

2. SAFETY 4

2.1. Symbols and advices 4

2.2. Basic safety precautions 5

2.2.1. Product safety 5

2.2.2. Personnel-related measures 5

2.2.3. Organisational measures 5

3. DESCRIPTION 6

3.1. Intended use 6

3.2. Structure and function 6

3.3. Technical data 7

3.3.1. Technical data on the surge arrester 7

3.3.2. Application guidelines 8

3.3.3. Recommended torques and screw-in depths 8

3.3.4. Behaviour in fire 8

4. TRANSPORTATION, UNPACKING AND STORAGE 9

5. COMMISSIONING 10

5.1. Safety 10

5.2. Electrical check before commissioning 10

5.3. Installation location and protective distance 10

5.4. Mounting 11

5.4.1. System voltage 11

5.4.2. Installation position 11

5.4.3. Minimum distances between surge arresters and earth 12

5.4.4. Connections 12

5.5. Earthing 13

6. MAINTENANCE, UPKEEP 14

6.1. Disconnecting device 14

6.2. Replacement after overloading or damages caused by animals 15

6.3. Cleaning in case of heavy pollution 15

7. DISPOSAL 16

ABB Operating instructions for POLIM©-D surge arrester

Doc. 1HC0010173 AB EN 3

1. ABOUT THIS DOCUMENT

These operating instructions are part of the POLIM®-D surge arrester and describe

safe and proper use for all phases of operation.

We reserve the right to make changes in the interest of further development.

1.1. Validity

These operating instructions are valid only for the POLIM®-D surge arrester.

1.2. Target group

The target group of these operating instructions is professionals in the field of high-

voltage technology.

The POLIM®-D may only be commissioned and maintained by persons instructed

in proper use and handling.

1.3. Copyright

The copyright of these operating instructions belongs to ABB Switzerland Ltd.

These operating instructions are to be handled confidentially and are intended

solely for mounting, operating and monitoring personnel. They contain regulations

and illustrations of a technical nature which may neither be utilized for competitive

purposes nor passed on to others. Handing over to third parties is impermissible

and liable for compensation.

All rights, including those regarding the translation, are reserved.

Language of original document: German

Operating instructions for POLIM©-D surge arrester ABB

4 EN Doc. 1HC0010173 AB

2. SAFETY

2.1. Symbols and advices

This is a safety sign. It warns you of the danger of injury and material damage.

Follow all measures marked with the safety sign to avoid injuries, death and da-

mage to materials.

This safety sign warns you of the danger of death or serious injury from electric

shocks. Follow all measures marked with the safety sign to avoid injuries and

death.

XThis mark indicates that an action is to be performed.

Warnings in these operating instructions indicate special dangers and list meas-

ures for prevention of the danger. There are three levels of warning:

Warning

word Meaning

DANGER Immediate, impending endangerment of your life and health

WARNING Possible impending endangerment of your life and health

CAUTION Possible impending danger of light injuries or damage to materials

Warnings are structured as follows:

WARNING

WORD

The type and source of danger appear here

Possible consequences, which could occur if the measures are not followed,

appear here.

:Impermissible actions appear here.

XMeasures for avoiding the danger appear here.

ABB Operating instructions for POLIM©-D surge arrester

Doc. 1HC0010173 AB EN 5

2.2. Basic safety precautions

2.2.1. Product safety

The POLIM®-D has been constructed using state-of-the-art technology and offi-

cially recognised safety-related rules. Danger to life and health of the user or third

parties could arise or damage of the POLIM®-D and other property could occur

while the POLIM®-D is in use, however.

XThe POLIM®-D is only to be used when it is in technically sound condition, for

the intended purpose, and with safety and the possible dangers in mind while

observing the operating instructions.

XKeep the operating instructions intact and fully readable, and store them in

such a way that they are accessible to operating personnel at all times.

XDecommission and replace overloaded or damaged POLIM®-D units.

2.2.2. Personnel-related measures

XTrain personnel in professional and safe working with high-voltage technology.

XTrain and instruct personnel in working on the POLIM®-D using the operating

instructions.

XPersonnel being trained, instructed or provided with general education may

only work with the POLIM®-D under constant supervision by an experienced

high-voltage technology professional.

2.2.3. Organisational measures

XObserve all safety- and danger-related information regarding the POLIM®-D.

XThe safety rules of the owner of the high- and medium-voltage system and all

regulations of the respective national safety authorities are to be observed.

XOnly trained and instructed professionals may be authorised.

XClearly assign areas of responsibility for working with the POLIM®-D. Make

them known and adhere to them.

XOnly personnel who have read and understood the operating instructions, es-

pecially the "Basic safety precautions" section may be allowed to carry out ac-

tivities with the POLIM®-D.

XCheck to ensure that work is being performed in a safety-conscious way with

awareness of possible dangers and while observing the operating instructions.

Operating instructions for POLIM©-D surge arrester ABB

6 EN Doc. 1HC0010173 AB

3. DESCRIPTION

3.1. Intended use

The POLIM®-D is a surge arrester intended for use in high- and medium-voltage

applications. Surge arresters protect the insulation of high voltage and medium

voltage devices against unacceptable overvoltages which are caused by lightning

or switching operations.

The manufacturer is not liable for resulting damages from further, unintended use.

The operator accepts all responsibility for using the POLIM®-D outside of its in-

tended application range as specified in this document.

3.2. Structure and function

The POLIM®-D surge arrester is constructed from serially connected, non-linear

metal-oxide (MO) resistors. These MO resistors have an extremely non-linear re-

sistance property. At the maximum operating voltage of Uc, only a small capacitive

current will flow in the mA range. With an increase in voltage, the MO resistors en-

ter a highly-conductive state practically without delay. Thus any further increase in

voltage is limited to the specified residual voltage values. After the decline of the

overvoltage the arrester immediately turns back to the non- or slightly-conductive

state. The MO arrester converts the energy of the surge into heat, which it trans-

fers to the surrounding air.

The stack of MO resistors and connection equipment is held together with loops

made of fiberglass-reinforced plastic. The directly molded silicone housing protects

it from all environmental and weather influences. This design has proven to be the

best solution in every environment for years.

The POLIM®-D surge arrester is optionally equipped with a disconnecting device

(disconnector). This device disconnects the POLIM®-D surge arrester from the

power network, when it has been overloaded and destroyed. Disconnecting is

done by firing of a small propellant charge in the disconnecting device.

The POLIM®-D is especially suited for overvoltage protection of:

•transformers

•cables

•other medium-voltage apparatuses and systems

ABB Operating instructions for POLIM©-D surge arrester

Doc. 1HC0010173 AB EN 7

3.3. Technical data

The technical data, dimensions, weights and installation distances are specified in

the following documents:

•surge arrester POLIM®-D for applications in a.c. systems in the pamphlet

1HC0075866

•POLIM®-D dimensional drawings

•Drawings of accessories

3.3.1. Technical data on the surge arrester

The rating plate molded into the silicone housing contains the following data:

Data Meaning

POLIM®-D Type designation

In = .. kA Nominal discharge current In

IEC-P-CL .. kA Rated short-circuit current Isfor 0.2 sec.

Additional data is engraved .

Data Meaning

Uc = .. kV maximum permissible continuous operating voltage Uc

Ur = .. kV Rated voltage Ur

xxxxxxxx Serial number

xx/20xx Date of manufacture, month/year

Operating instructions for POLIM©-D surge arrester ABB

8 EN Doc. 1HC0010173 AB

3.3.2. Application guidelines

The following guidelines apply for the use of POLIM®-D surge arresters:

•“Application guidelines Overvoltage protection”

Dimensioning, testing and application of metal oxide surge arresters in me-

dium voltage systems, pamphlet 1HC0075561

Additionally for surge arresters equipped with disconnecing devices applies:

XUse POLIM®-D surge arrester equipped with a disconnecting device in out-

door installations, only.

XUse the disconnecting device with POLIM®-D surge arrester, only.

3.3.3. Recommended torques and screw-in depths

The specified values in the table below apply for steel bolts of strength class 8.8 in

aluminum nut threads.

Thread Position Torque

[Nm] Minimum

screw-in depth

[mm]

Maximum

screw-in depth

[mm]

M12 top connection 48 18 25

M12 top connection

without socket 48 18 20.5

M12 bottom

connection 48 18 20.5

M12 bottom connection

without socket 48 12 12.5

The specified values in the table below apply for POLIM®-D surge arrester equip-

ped with a disconnecting device

Thread Position Torque

[Nm]

M12 bolt between disconnecting device and bottom con-

nection of surge arrester 20

M10 bolt of the disconnecting device 20

3.3.4. Behaviour in fire

The silicone housing of the surge arrester is self-extinguishing.

ABB Operating instructions for POLIM©-D surge arrester

Doc. 1HC0010173 AB EN 9

4. TRANSPORTATION, UNPACKING AND STORAGE

Transportation

CAUTION

Surge arresters not secured during transportation

Damage to surge arresters that have fallen during transport.

XSecure surge arresters against sliding or falling before transportation.

XObserve safety precautions printed on the packaging for proper handling

during transportation and storage.

XDon’t expose disconnectors or surge arresters with equipped disconnecting

devices to temperatures above +60°C .

Unpacking

The surge arresters provided are packaged in stable cardboard boxes or wooden

crates. The accessories, packaged in plastic bags, are either included in the carton

or wooden crate or supplied separately in case of large quantities.

The surge arresters are supplied with accessories installed, unless specifically or-

dered otherwise. The routine test reports for the final electrical inspection are in-

cluded in the packaging material.

XAfter receiving the shipment, compare the order and delivery documents im-

mediately to check for completeness and accuracy of the shipment. In case of

incompleteness or deviations, inform the supplier and shipper immediately.

WARNING

Damaged surge arresters

Material damage and personal injury due to the installation and commissioning of

damaged surge arresters.

:Do not use damaged surge arresters.

XExamine shipment immediately to check for damage.

XNotify the insurance company, the shipper and the supplier of the damage

immediately and create a damage log.

Storage

The original packaging materials can be used for storage.

XStore surge arresters in a well-ventilated, clean room.

XRemove plastic film to prevent the formation of condensation water.

XStorage temperature: -40 .. 70°C

XDon’t expose disconnectors or surge arresters with equipped disconnecting

devices to temperatures above +60°C.

10 EN Doc. 1HC0010173 AB

5. COMMISSIONING

5.1. Safety

DANGER

System uses high voltage

Death, serious bodily harm and damage to the switching gear may result from an

electric shock.

XAllow only authorised professionals to perform work on the surge arrester.

XObserve the safety rules of EN 50110-1 before working on the system:

– Disconnect the system from the power supply.

– Secure the system against being switched on again.

– Ensure that the system is de-energised.

– Earth the system and short-circuit it.

– Cover or cordon off neighbouring energised parts.

5.2. Electrical check before commissioning

Each surge arrester is tested by the manufacturer. The routine test report is in-

cluded with the packaging. Additional electrical testing before commissioning is not

necessary.

5.3. Installation location and protective distance

DANGER

Danger of fire and injury via arc with overloading of the surge ar-

rester and when disconnecting device is disconnecting the surge

arrester

Ignition of flammable materials by an arc and flying burning parts.

XDo not store flammable materials near the surge arrester.

XWhen working near the surge arrester, do not wear easily flammable clothing.

Surge arresters only protect medium-voltage apparatuses when they are located

within the protective distance The protective distance is only a few meters.

XAlways mount surge arresters as close as possible to the apparatus to be pro-

tected within the protective distance. The length of the connecting cables are

decisive here.

XIn cases of doubt, calculate the protective distance according to the formulas

in the "Application guidelines".

XUse POLIM®-D surge arrester equipped with a disconnecting device in out-

door installations, only.

Table of contents

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