Electrical transformers and power equipment:
Gespeichert in:
1. Verfasser: | |
---|---|
Format: | Elektronisch E-Book |
Sprache: | English |
Veröffentlicht: |
Lilburn, Ga.
Fairmont Press
©1999
|
Ausgabe: | 3rd ed |
Schlagworte: | |
Online-Zugang: | FAW01 FAW02 Volltext |
Beschreibung: | Includes index. - Master and use copy. Digital master created according to Benchmark for Faithful Digital Reproductions of Monographs and Serials, Version 1. Digital Library Federation, December 2002 Electrical Transformers -- - Theory of Operation -- - Introduction: The Transformer -- - How It Works: Electromagnetism -- - Electromagnetic Fields -- - Electromagnetic Induction -- - Capacitance-Capacitive Reactance -- - Impedance -- - Generation of Voltage in a Transformer Coil -- - Ratio of Transformation -- - Action of Transformer Under Load -- - Transformer Losses -- - Impedance and Regulation of Transformer -- - Transformer Ratings -- - Transformer Construction -- - Principal Parts -- - Cores -- - Coils or Windings -- - Enclosure and Cooling Systems -- - Methods of Transformer Cooling -- - Moisture and Sludge -- - Increased Cooling -- - Askarels -- - Bushings and Terminals -- - Taps and Tap Changing -- - Insulation Coordination -- - Transformers with More Than Two Windings -- - Single- and Three-Phase Transformers -- - Portable Transformers -- - Tanks -- - Installation -- - Distribution Transformers: Overhead -- - Distribution Transformers: Pad-Mounted -- - Distribution Transformers: Underground -- - Substation Power Transformers -- - Protection -- - Self-Protected Distribution Transformers -- - Customer Installations -- - Autotransformers -- - Operation and Maintenance -- - Heat Indicators -- - Ammeters -- - Transformer Load Monitoring -- - Ambients -- - Larger Installations -- - External Inspection -- - Internal Inspection -- - Maintenance -- - Oil -- - Askarels -- - Gaskets -- - Winding Insulation -- - Drying Out Transformers -- - Radiators -- - Electrical Grounds -- - Cautions -- - Principal Transformer Connections -- - Polarity -- - Test for Polarity -- - Importance of Impedance |
Beschreibung: | 1 Online-Ressource (x, 394 pages) |
ISBN: | 0130129674 0585120730 0881733113 9780130129673 9780585120737 9780881733112 |
Internformat
MARC
LEADER | 00000nmm a2200000zc 4500 | ||
---|---|---|---|
001 | BV043089311 | ||
003 | DE-604 | ||
005 | 00000000000000.0 | ||
007 | cr|uuu---uuuuu | ||
008 | 151126s1999 |||| o||u| ||||||eng d | ||
020 | |a 0130129674 |c PH |9 0-13-012967-4 | ||
020 | |a 0585120730 |c electronic bk. |9 0-585-12073-0 | ||
020 | |a 0881733113 |c FP |9 0-88173-311-3 | ||
020 | |a 9780130129673 |c PH |9 978-0-13-012967-3 | ||
020 | |a 9780585120737 |c electronic bk. |9 978-0-585-12073-7 | ||
020 | |a 9780881733112 |c FP |9 978-0-88173-311-2 | ||
035 | |a (OCoLC)44960628 | ||
035 | |a (DE-599)BVBBV043089311 | ||
040 | |a DE-604 |b ger |e aacr | ||
041 | 0 | |a eng | |
049 | |a DE-1046 |a DE-1047 | ||
082 | 0 | |a 621.31/4 |2 21 | |
100 | 1 | |a Pansini, Anthony J. |e Verfasser |4 aut | |
245 | 1 | 0 | |a Electrical transformers and power equipment |c Anthony J. Pansini |
250 | |a 3rd ed | ||
264 | 1 | |a Lilburn, Ga. |b Fairmont Press |c ©1999 | |
300 | |a 1 Online-Ressource (x, 394 pages) | ||
336 | |b txt |2 rdacontent | ||
337 | |b c |2 rdamedia | ||
338 | |b cr |2 rdacarrier | ||
500 | |a Includes index. - Master and use copy. Digital master created according to Benchmark for Faithful Digital Reproductions of Monographs and Serials, Version 1. Digital Library Federation, December 2002 | ||
500 | |a Electrical Transformers -- - Theory of Operation -- - Introduction: The Transformer -- - How It Works: Electromagnetism -- - Electromagnetic Fields -- - Electromagnetic Induction -- - Capacitance-Capacitive Reactance -- - Impedance -- - Generation of Voltage in a Transformer Coil -- - Ratio of Transformation -- - Action of Transformer Under Load -- - Transformer Losses -- - Impedance and Regulation of Transformer -- - Transformer Ratings -- - Transformer Construction -- - Principal Parts -- - Cores -- - Coils or Windings -- - Enclosure and Cooling Systems -- - Methods of Transformer Cooling -- - Moisture and Sludge -- - Increased Cooling -- - Askarels -- - Bushings and Terminals -- - Taps and Tap Changing -- - Insulation Coordination -- - Transformers with More Than Two Windings -- - Single- and Three-Phase Transformers -- - Portable Transformers -- - Tanks -- - Installation -- - Distribution Transformers: Overhead -- - Distribution Transformers: Pad-Mounted -- - Distribution Transformers: Underground -- - Substation Power Transformers -- - Protection -- - Self-Protected Distribution Transformers -- - Customer Installations -- - Autotransformers -- - Operation and Maintenance -- - Heat Indicators -- - Ammeters -- - Transformer Load Monitoring -- - Ambients -- - Larger Installations -- - External Inspection -- - Internal Inspection -- - Maintenance -- - Oil -- - Askarels -- - Gaskets -- - Winding Insulation -- - Drying Out Transformers -- - Radiators -- - Electrical Grounds -- - Cautions -- - Principal Transformer Connections -- - Polarity -- - Test for Polarity -- - Importance of Impedance | ||
650 | 4 | |a Transformateurs électriques | |
650 | 4 | |a Appareils électriques / Protection | |
650 | 7 | |a TECHNOLOGY & ENGINEERING / Electrical |2 bisacsh | |
650 | 7 | |a Electric apparatus and appliances / Protection |2 fast | |
650 | 7 | |a Electric transformers |2 fast | |
650 | 4 | |a Electric transformers | |
650 | 4 | |a Electric apparatus and appliances |x Protection | |
650 | 0 | 7 | |a Transformator |0 (DE-588)4130713-6 |2 gnd |9 rswk-swf |
650 | 0 | 7 | |a Schaltgerät |0 (DE-588)4125461-2 |2 gnd |9 rswk-swf |
650 | 0 | 7 | |a Elektrische Energietechnik |0 (DE-588)4113411-4 |2 gnd |9 rswk-swf |
689 | 0 | 0 | |a Schaltgerät |0 (DE-588)4125461-2 |D s |
689 | 0 | 1 | |a Elektrische Energietechnik |0 (DE-588)4113411-4 |D s |
689 | 0 | |8 1\p |5 DE-604 | |
689 | 1 | 0 | |a Transformator |0 (DE-588)4130713-6 |D s |
689 | 1 | |8 2\p |5 DE-604 | |
856 | 4 | 0 | |u http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=14577 |x Aggregator |3 Volltext |
912 | |a ZDB-4-EBA | ||
999 | |a oai:aleph.bib-bvb.de:BVB01-028513503 | ||
883 | 1 | |8 1\p |a cgwrk |d 20201028 |q DE-101 |u https://d-nb.info/provenance/plan#cgwrk | |
883 | 1 | |8 2\p |a cgwrk |d 20201028 |q DE-101 |u https://d-nb.info/provenance/plan#cgwrk | |
966 | e | |u http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=14577 |l FAW01 |p ZDB-4-EBA |q FAW_PDA_EBA |x Aggregator |3 Volltext | |
966 | e | |u http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=14577 |l FAW02 |p ZDB-4-EBA |q FAW_PDA_EBA |x Aggregator |3 Volltext |
Datensatz im Suchindex
_version_ | 1804175488815464448 |
---|---|
any_adam_object | |
author | Pansini, Anthony J. |
author_facet | Pansini, Anthony J. |
author_role | aut |
author_sort | Pansini, Anthony J. |
author_variant | a j p aj ajp |
building | Verbundindex |
bvnumber | BV043089311 |
collection | ZDB-4-EBA |
ctrlnum | (OCoLC)44960628 (DE-599)BVBBV043089311 |
dewey-full | 621.31/4 |
dewey-hundreds | 600 - Technology (Applied sciences) |
dewey-ones | 621 - Applied physics |
dewey-raw | 621.31/4 |
dewey-search | 621.31/4 |
dewey-sort | 3621.31 14 |
dewey-tens | 620 - Engineering and allied operations |
discipline | Elektrotechnik / Elektronik / Nachrichtentechnik |
edition | 3rd ed |
format | Electronic eBook |
fullrecord | <?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>04379nmm a2200613zc 4500</leader><controlfield tag="001">BV043089311</controlfield><controlfield tag="003">DE-604</controlfield><controlfield tag="005">00000000000000.0</controlfield><controlfield tag="007">cr|uuu---uuuuu</controlfield><controlfield tag="008">151126s1999 |||| o||u| ||||||eng d</controlfield><datafield tag="020" ind1=" " ind2=" "><subfield code="a">0130129674</subfield><subfield code="c">PH</subfield><subfield code="9">0-13-012967-4</subfield></datafield><datafield tag="020" ind1=" " ind2=" "><subfield code="a">0585120730</subfield><subfield code="c">electronic bk.</subfield><subfield code="9">0-585-12073-0</subfield></datafield><datafield tag="020" ind1=" " ind2=" "><subfield code="a">0881733113</subfield><subfield code="c">FP</subfield><subfield code="9">0-88173-311-3</subfield></datafield><datafield tag="020" ind1=" " ind2=" "><subfield code="a">9780130129673</subfield><subfield code="c">PH</subfield><subfield code="9">978-0-13-012967-3</subfield></datafield><datafield tag="020" ind1=" " ind2=" "><subfield code="a">9780585120737</subfield><subfield code="c">electronic bk.</subfield><subfield code="9">978-0-585-12073-7</subfield></datafield><datafield tag="020" ind1=" " ind2=" "><subfield code="a">9780881733112</subfield><subfield code="c">FP</subfield><subfield code="9">978-0-88173-311-2</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(OCoLC)44960628</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)BVBBV043089311</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-604</subfield><subfield code="b">ger</subfield><subfield code="e">aacr</subfield></datafield><datafield tag="041" ind1="0" ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="049" ind1=" " ind2=" "><subfield code="a">DE-1046</subfield><subfield code="a">DE-1047</subfield></datafield><datafield tag="082" ind1="0" ind2=" "><subfield code="a">621.31/4</subfield><subfield code="2">21</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Pansini, Anthony J.</subfield><subfield code="e">Verfasser</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Electrical transformers and power equipment</subfield><subfield code="c">Anthony J. Pansini</subfield></datafield><datafield tag="250" ind1=" " ind2=" "><subfield code="a">3rd ed</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="a">Lilburn, Ga.</subfield><subfield code="b">Fairmont Press</subfield><subfield code="c">©1999</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">1 Online-Ressource (x, 394 pages)</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">Includes index. - Master and use copy. Digital master created according to Benchmark for Faithful Digital Reproductions of Monographs and Serials, Version 1. Digital Library Federation, December 2002</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">Electrical Transformers -- - Theory of Operation -- - Introduction: The Transformer -- - How It Works: Electromagnetism -- - Electromagnetic Fields -- - Electromagnetic Induction -- - Capacitance-Capacitive Reactance -- - Impedance -- - Generation of Voltage in a Transformer Coil -- - Ratio of Transformation -- - Action of Transformer Under Load -- - Transformer Losses -- - Impedance and Regulation of Transformer -- - Transformer Ratings -- - Transformer Construction -- - Principal Parts -- - Cores -- - Coils or Windings -- - Enclosure and Cooling Systems -- - Methods of Transformer Cooling -- - Moisture and Sludge -- - Increased Cooling -- - Askarels -- - Bushings and Terminals -- - Taps and Tap Changing -- - Insulation Coordination -- - Transformers with More Than Two Windings -- - Single- and Three-Phase Transformers -- - Portable Transformers -- - Tanks -- - Installation -- - Distribution Transformers: Overhead -- - Distribution Transformers: Pad-Mounted -- - Distribution Transformers: Underground -- - Substation Power Transformers -- - Protection -- - Self-Protected Distribution Transformers -- - Customer Installations -- - Autotransformers -- - Operation and Maintenance -- - Heat Indicators -- - Ammeters -- - Transformer Load Monitoring -- - Ambients -- - Larger Installations -- - External Inspection -- - Internal Inspection -- - Maintenance -- - Oil -- - Askarels -- - Gaskets -- - Winding Insulation -- - Drying Out Transformers -- - Radiators -- - Electrical Grounds -- - Cautions -- - Principal Transformer Connections -- - Polarity -- - Test for Polarity -- - Importance of Impedance</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Transformateurs électriques</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Appareils électriques / Protection</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">TECHNOLOGY & ENGINEERING / Electrical</subfield><subfield code="2">bisacsh</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Electric apparatus and appliances / Protection</subfield><subfield code="2">fast</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Electric transformers</subfield><subfield code="2">fast</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Electric transformers</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Electric apparatus and appliances</subfield><subfield code="x">Protection</subfield></datafield><datafield tag="650" ind1="0" ind2="7"><subfield code="a">Transformator</subfield><subfield code="0">(DE-588)4130713-6</subfield><subfield code="2">gnd</subfield><subfield code="9">rswk-swf</subfield></datafield><datafield tag="650" ind1="0" ind2="7"><subfield code="a">Schaltgerät</subfield><subfield code="0">(DE-588)4125461-2</subfield><subfield code="2">gnd</subfield><subfield code="9">rswk-swf</subfield></datafield><datafield tag="650" ind1="0" ind2="7"><subfield code="a">Elektrische Energietechnik</subfield><subfield code="0">(DE-588)4113411-4</subfield><subfield code="2">gnd</subfield><subfield code="9">rswk-swf</subfield></datafield><datafield tag="689" ind1="0" ind2="0"><subfield code="a">Schaltgerät</subfield><subfield code="0">(DE-588)4125461-2</subfield><subfield code="D">s</subfield></datafield><datafield tag="689" ind1="0" ind2="1"><subfield code="a">Elektrische Energietechnik</subfield><subfield code="0">(DE-588)4113411-4</subfield><subfield code="D">s</subfield></datafield><datafield tag="689" ind1="0" ind2=" "><subfield code="8">1\p</subfield><subfield code="5">DE-604</subfield></datafield><datafield tag="689" ind1="1" ind2="0"><subfield code="a">Transformator</subfield><subfield code="0">(DE-588)4130713-6</subfield><subfield code="D">s</subfield></datafield><datafield tag="689" ind1="1" ind2=" "><subfield code="8">2\p</subfield><subfield code="5">DE-604</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=14577</subfield><subfield code="x">Aggregator</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">ZDB-4-EBA</subfield></datafield><datafield tag="999" ind1=" " ind2=" "><subfield code="a">oai:aleph.bib-bvb.de:BVB01-028513503</subfield></datafield><datafield tag="883" ind1="1" ind2=" "><subfield code="8">1\p</subfield><subfield code="a">cgwrk</subfield><subfield code="d">20201028</subfield><subfield code="q">DE-101</subfield><subfield code="u">https://d-nb.info/provenance/plan#cgwrk</subfield></datafield><datafield tag="883" ind1="1" ind2=" "><subfield code="8">2\p</subfield><subfield code="a">cgwrk</subfield><subfield code="d">20201028</subfield><subfield code="q">DE-101</subfield><subfield code="u">https://d-nb.info/provenance/plan#cgwrk</subfield></datafield><datafield tag="966" ind1="e" ind2=" "><subfield code="u">http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=14577</subfield><subfield code="l">FAW01</subfield><subfield code="p">ZDB-4-EBA</subfield><subfield code="q">FAW_PDA_EBA</subfield><subfield code="x">Aggregator</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="966" ind1="e" ind2=" "><subfield code="u">http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=14577</subfield><subfield code="l">FAW02</subfield><subfield code="p">ZDB-4-EBA</subfield><subfield code="q">FAW_PDA_EBA</subfield><subfield code="x">Aggregator</subfield><subfield code="3">Volltext</subfield></datafield></record></collection> |
id | DE-604.BV043089311 |
illustrated | Not Illustrated |
indexdate | 2024-07-10T07:17:05Z |
institution | BVB |
isbn | 0130129674 0585120730 0881733113 9780130129673 9780585120737 9780881733112 |
language | English |
oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-028513503 |
oclc_num | 44960628 |
open_access_boolean | |
owner | DE-1046 DE-1047 |
owner_facet | DE-1046 DE-1047 |
physical | 1 Online-Ressource (x, 394 pages) |
psigel | ZDB-4-EBA ZDB-4-EBA FAW_PDA_EBA |
publishDate | 1999 |
publishDateSearch | 1999 |
publishDateSort | 1999 |
publisher | Fairmont Press |
record_format | marc |
spelling | Pansini, Anthony J. Verfasser aut Electrical transformers and power equipment Anthony J. Pansini 3rd ed Lilburn, Ga. Fairmont Press ©1999 1 Online-Ressource (x, 394 pages) txt rdacontent c rdamedia cr rdacarrier Includes index. - Master and use copy. Digital master created according to Benchmark for Faithful Digital Reproductions of Monographs and Serials, Version 1. Digital Library Federation, December 2002 Electrical Transformers -- - Theory of Operation -- - Introduction: The Transformer -- - How It Works: Electromagnetism -- - Electromagnetic Fields -- - Electromagnetic Induction -- - Capacitance-Capacitive Reactance -- - Impedance -- - Generation of Voltage in a Transformer Coil -- - Ratio of Transformation -- - Action of Transformer Under Load -- - Transformer Losses -- - Impedance and Regulation of Transformer -- - Transformer Ratings -- - Transformer Construction -- - Principal Parts -- - Cores -- - Coils or Windings -- - Enclosure and Cooling Systems -- - Methods of Transformer Cooling -- - Moisture and Sludge -- - Increased Cooling -- - Askarels -- - Bushings and Terminals -- - Taps and Tap Changing -- - Insulation Coordination -- - Transformers with More Than Two Windings -- - Single- and Three-Phase Transformers -- - Portable Transformers -- - Tanks -- - Installation -- - Distribution Transformers: Overhead -- - Distribution Transformers: Pad-Mounted -- - Distribution Transformers: Underground -- - Substation Power Transformers -- - Protection -- - Self-Protected Distribution Transformers -- - Customer Installations -- - Autotransformers -- - Operation and Maintenance -- - Heat Indicators -- - Ammeters -- - Transformer Load Monitoring -- - Ambients -- - Larger Installations -- - External Inspection -- - Internal Inspection -- - Maintenance -- - Oil -- - Askarels -- - Gaskets -- - Winding Insulation -- - Drying Out Transformers -- - Radiators -- - Electrical Grounds -- - Cautions -- - Principal Transformer Connections -- - Polarity -- - Test for Polarity -- - Importance of Impedance Transformateurs électriques Appareils électriques / Protection TECHNOLOGY & ENGINEERING / Electrical bisacsh Electric apparatus and appliances / Protection fast Electric transformers fast Electric transformers Electric apparatus and appliances Protection Transformator (DE-588)4130713-6 gnd rswk-swf Schaltgerät (DE-588)4125461-2 gnd rswk-swf Elektrische Energietechnik (DE-588)4113411-4 gnd rswk-swf Schaltgerät (DE-588)4125461-2 s Elektrische Energietechnik (DE-588)4113411-4 s 1\p DE-604 Transformator (DE-588)4130713-6 s 2\p DE-604 http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=14577 Aggregator Volltext 1\p cgwrk 20201028 DE-101 https://d-nb.info/provenance/plan#cgwrk 2\p cgwrk 20201028 DE-101 https://d-nb.info/provenance/plan#cgwrk |
spellingShingle | Pansini, Anthony J. Electrical transformers and power equipment Transformateurs électriques Appareils électriques / Protection TECHNOLOGY & ENGINEERING / Electrical bisacsh Electric apparatus and appliances / Protection fast Electric transformers fast Electric transformers Electric apparatus and appliances Protection Transformator (DE-588)4130713-6 gnd Schaltgerät (DE-588)4125461-2 gnd Elektrische Energietechnik (DE-588)4113411-4 gnd |
subject_GND | (DE-588)4130713-6 (DE-588)4125461-2 (DE-588)4113411-4 |
title | Electrical transformers and power equipment |
title_auth | Electrical transformers and power equipment |
title_exact_search | Electrical transformers and power equipment |
title_full | Electrical transformers and power equipment Anthony J. Pansini |
title_fullStr | Electrical transformers and power equipment Anthony J. Pansini |
title_full_unstemmed | Electrical transformers and power equipment Anthony J. Pansini |
title_short | Electrical transformers and power equipment |
title_sort | electrical transformers and power equipment |
topic | Transformateurs électriques Appareils électriques / Protection TECHNOLOGY & ENGINEERING / Electrical bisacsh Electric apparatus and appliances / Protection fast Electric transformers fast Electric transformers Electric apparatus and appliances Protection Transformator (DE-588)4130713-6 gnd Schaltgerät (DE-588)4125461-2 gnd Elektrische Energietechnik (DE-588)4113411-4 gnd |
topic_facet | Transformateurs électriques Appareils électriques / Protection TECHNOLOGY & ENGINEERING / Electrical Electric apparatus and appliances / Protection Electric transformers Electric apparatus and appliances Protection Transformator Schaltgerät Elektrische Energietechnik |
url | http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=14577 |
work_keys_str_mv | AT pansinianthonyj electricaltransformersandpowerequipment |