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OPER ATING INSTRUC TIONS 

Surge arresters

Types POLIM® and MWK/MWD

Summary of Contents for POLIM

Page 1: ... OPER ATING INSTRUCTIONS Surge arresters Types POLIM and MWK MWD ...

Page 2: ...ing 7 4 2 Unpacking 7 4 3 Storage 7 5 Commissioning 8 5 1 Safety 8 5 2 Electrical checking before commissioning 8 5 3 Installation location and protective distance 8 5 4 Mounting 9 5 4 1 System Voltage 9 5 4 2 Connections 9 5 4 3 Mounting grading ring POLIM I S H only 10 5 4 4 Transportation during mounting 11 5 4 5 Installation position 11 5 4 6 Distances between surge arresters and earth 12 5 4 ...

Page 3: ... in order to illustrate the correct operation Symbol Meaning This is a warning sign It warns you of the danger of injury or death and or material damage Follow all measures marked with such warning signs to avoid injuries death and damage to materials This sign warns you of the danger of death or serious injury from electric shocks Follow all measures marked with such warning signs to avoid injuri...

Page 4: ...d MWK MWD type surge arresters X X The 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 X X Only trained and instructed high voltage technology professionals may be authorised to work independently with the POLIM and MWK MWD type surge arresters X X Clearly assign areas of responsibility for working...

Page 5: ... high voltage surge arresters medium voltage arresters The corresponding dimensional drawings of the products and or their accessories are available on request 3 3 1 Technical data on the surge arrester Main characteristic data are partly molded into the silicone housing and partly engraved in the electrodes Note AC surge arresters are not suitable for use in DC applications DC surge arresters hav...

Page 6: ...OLIM X top connection 30 15 16 M12 MWK MWD top bottom 50 18 23 5 M12 POLIM C top connection 50 16 20 M12 POLIM C bottom connection 50 16 16 M12 POLIM C LB top bottom 30 M12 POLIM D K 4 5 ID top connection 50 20 25 M12 POLIM D K bottom connection 50 20 20 M12 POLIM D without lug top connection 50 17 17 M12 POLIM D without lug bottom connection 50 12 12 M12 POLIM I top bottom 50 14 14 M12 POLIM H to...

Page 7: ...l inspection are included in the packaging material X X After receiving the shipment compare the order and delivery documents immediately to check for completeness and correctness of the shipment X X In case of incompleteness or deviations inform the supplier and shipper immediately Packaging material is one way unless stated otherwise It shall be disposed of or recycled according to local regulat...

Page 8: ...connecting the surge arrester Ignition of flammable materials by an arc or ejected hot parts X X Do not store flammable materials near the surge arrester X X When working near a surge arrester do not wear easily flammable clothing Surge arresters only protect high voltage apparatuses when they are located within the protective distance as defined in the surge arrester application guidelines see ch...

Page 9: ...lowing parts made of stainless or galvanised steel are to be provided by the customer depending on the application Bolts Foundation bolts Nuts Bolt locks Any required balancing washers The ordered mounting accessory is already mounted to the surge arrester in most cases If the mounting accessory has been ordered and delivered separately it must be mounted according to the enclosed instruction data...

Page 10: ...3 5 1 Connection bolt 2 Cover 3 Support 4 Grading ring 5 Countersunk screw If your surge arrester has a grading ring you must mount the grading ring X X Ensure that the surge arrester cannot topple over X X Place the grading ring 4 over the surge arrester with the mounting holes towards the top X X Screw out the connection bolt 1 approx 11 mm with a fork wrench X X Lift the cover 2 slightly X X Pl...

Page 11: ...ccessories from surge arrester X X Screw the ring bolt into threaded hole M16x25 X X Hook the rope as shown in Figure 2 Fastening to grading ring X X Hook the three ropes in the three supports of the grading ring and the hook of the crane as shown in Figure 3 5 4 5 Installation position CAUTION Deposits on the undersides of sheds Conductivity of deposits hinders protective function of the POLIM an...

Page 12: ...both side bars of the surge arrester to earth X X Use flexible connection and connect the high voltage connection with the top terminal of the surge arrester X X Observe recommended torques see chapter 3 3 3 above X X Carefully clean contact surfaces before mounting and lubricate them with acid free contact grease X X Ensure selection of suitable material pairs 5 4 8 Insulated installation If surg...

Page 13: ... earth near the mounting position of the insulating bracket In case of disconnection ensure that the disconnected earth wire can swing freely and that no flash over will occur between the bottom connection and earth see chapter 5 4 6 6 Maintenance The surge arresters do not contain wearing parts and are therefore maintenance free Replacement parts are not needed We recommend to check the surge arr...

Page 14: ...uring operation can lead to damaging e g traces of fire fractures of the surge arrester from arcs Minimal animal bites on the sheds of the silicone housing e g by birds martens mice etc do not impair the functioning of the surge arrester However heavy bites do reduce the insulation capacity of the silicone housing CAUTION Damage to the surge arrester Damaged surge arresters no longer protect the e...

Page 15: ...lly bonded No exposition occurs In addition the metal oxide resistors are coated with a thin glass layer 0 1 by weight containing PbO A leaching test according to the Council Decision of 19 December 2002 and directive 1999 31 EC on acceptance of waste at landfills has therefore been performed The test is much more arduous than reality since the test is performed with material in ground form Despit...

Page 16: ...ithout 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 information in this document We reserve all rights in this document and in the subject matter and illustrations contained therein Any reproduction disclosure to third parties or utilization of its contents in whole or in ...

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