circuit breakers go high voltage
IEC 62271 100 high voltage switchgear and controlgear high voltage alternating current circuit
Ngày tải lên :
04/04/2014, 12:34
... specifications High- voltage alternating current circuit- breakers Synthetic testing High- voltage alternating current disconnectors and earthing switches High- voltage switches for rated voltages above ... – 21 – HIGH- VOLTAGE SWITCHGEAR AND CONTROLGEAR – Part 100: High- voltage alternating-current circuit- breakers General 1.1 Scope This International Standard is applicable to a.c circuit- breakers ... specifications for high- voltage switchgear and controlgear standards IEC 61233:1994, High- voltage alternating current circuit- breakers – Inductive load switching IEC 61633:1995, High- voltage alternating...
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IEC 62271 308 high voltage switchgear and controlgear guide to asymetrical shoet circuit breaki
Ngày tải lên :
04/04/2014, 12:35
... 100 High- voltage alternating current circuit- breakers IEC 60056 101 Synthetic testing IEC 60427 102 High- voltage alternating current disconnectors and earthing switches IEC 60129 103 High- voltage ... High- voltage switches for rated voltages above kV and less than 52 kV IEC 60265-1 104 High- voltage switches for rated voltages of 52 kV and above IEC 60265-2 105 High- voltage alternating current ... `,``,`,`,,,,,,,```,,,,,,```,,-`-`,,`,,`,`,,` - IEC 62271-100:2001, High- voltage switchgear and controlgear – Part 100: High- voltage alternating-current circuit- breakers – 14 – TR 62271-308 CEI:2002 NOTE Il convient...
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chiến lược mở rộng thị trương mỹ của côngn ty cổ phần sản xuất và thương mại gỗ High-up.docx
Ngày tải lên :
25/10/2012, 16:10
... tổ chức: Chiến lược mở rộng thị trường đồ gỗ Mỹ High – up Furniture Company Chiến lược mở rộng thị trường đồ gỗ Mỹ High – up Furniture Company High – up Furniture Company Tôn chỉ: “Mang lại giá ... đến 2009> Điện Thoại: (+84-650) 393939 Fax: (+84-650) 797979 Email: contact@highupfurniture.com.vn Website: http://www.highupfurniture.com.vn Trụ sở chính: Khu công nghiệp Sóng thần 2, ĐL Thống ... High – up Furniture Company Chiến lược mở rộng thị trường đồ gỗ Mỹ Tên viết tắt: HUF (hoặc High- up) Mã chứng khoán quốc tế: VN HUFL10999 (ISINs...
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IEC 62271 203 high voltage switchgear and controlgear gas insulated metal enclosed swithgear
Ngày tải lên :
04/04/2014, 12:34
... equipment with rated voltages greater than 000 V IEC 62271-100, High- voltage switchgear and controlgear – Part 100: High- voltage alternatingcurrent circuit- breakers IEC 62271-102, High- voltage switchgear ... for rated voltages above 52 kV IEC 60517 204 High- voltage gas-insulated transmission lines for rated voltages of 72,5 kV and above IEC 61640 (300) Guide for seismic qualification of high- voltage ... rated voltages above kV and up to and including 52 kV IEC 60298 201 Insulation-enclosed switchgear and controlgear for rated voltages up to and including 52 kV IEC 60466 202 High- voltage/ low-voltage...
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IEC TR 62271 310 high voltage switchgear and controlgear electrical endurance testing for circu
Ngày tải lên :
04/04/2014, 12:38
... 62271-100, High- voltage switchgear and controlgear, Part 100: High- voltage alternating current circuit- breakers IEC 60427, Synthetic testing of high- voltage alternating current circuit- breakers ... HIGH- VOLTAGE SWITCHGEAR AND CONTROLGEAR Part 310: Electrical endurance testing for circuit- breakers of rated voltage 72,5 kV and above Scope This technical report is applicable to class E2 circuit- breakers ... parameters for high- voltage switchgear and controlgear for rated voltages and above kV and less than 100 kV New 310 Electrical endurance testing for circuit- breakers of rated voltage 72,5 kV...
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kuffel, e. (2000). high voltage engineering - fundamentals (2nd ed.)
Ngày tải lên :
18/04/2014, 12:28
... 3.5.2 Voltage dividers and passive rectifier circuits 3.5.3 Active peak-reading circuits 117 3.5.4 High- voltage capacitors for measuring circuits 113 118 3.6 Voltage dividing systems and impulse voltage ... attempt is made to cover the basics of high voltage laboratory techniques and high voltage phenomena together with the principles governing design of high voltage insulation Following the historical ... necessary to bring the high voltage out of the tank ‘5’ Instead of a bushing, a coaxial cable could also be used if this improves Generation of high voltages 33 High voltage Low voltage (a) 8 5 (b)...
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Bài giảng HIGH VOLTAGE - Chương 1 Cơ sở vật lý của hiện tượng phóng điện trong chất khí - Kỹ thuật điện cao áp
Ngày tải lên :
23/05/2014, 19:46
... HIGH VOLTAGE ENGINEERING REFERENCES *HIGH VOLTAGE ENGINEERING *ISOLATION ENGINEERING *ELECTRONIC AND ELECTRICAL MATERIALS ... CỦA HIỆN TƯNG PHÓNG ĐIỆN TRONG CHẤT KHÍ I KHÁI NIỆM VỀ CÁCH ĐIỆN a) CÁCH ĐIỆN TRONG b) CÁCH ĐIỆN NGOÀI II VAI TRÒ CỦA CÁCH ĐIỆN KHÍ TRONG CÁC THIẾT BỊ ĐIỆN CAO ÁP ĐỘ BỀN ĐIỆN CAO TRƠ VỀ MẶT HOÁ...
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High Voltage Xlpe Cable Systems - Technical User Guide pptx
Ngày tải lên :
27/06/2014, 14:20
... methods, induced voltage High voltage cables have a metallic sheath, along which a voltage is induced as a function of the operating current In order to handle this induced voltage, both cable ... parallel circuits Page High Voltage XLPE Cable Systems Techincal User Guide Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com Calculation of the induced voltage The induced voltage ... maintenance-free products to the utility industry At present, numerous high voltage XLPE cable systems with nominal voltages up to 500 kV and with circuit lengths up to 40 km are in operation worldwide Cable...
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Báo cáo nghiên cứu khoa học: " FAST CALCULATING FORMULAS OF CURRENT PASSING THROUGH GROUNDING SYSTEM OF HIGH VOLTAGE SUBSTATION WHEN LIGHTNING STRIKES AT THE GROUNDING WIRE OF TRANSMISSION LINE" pps
Ngày tải lên :
22/07/2014, 03:20
... the grounding wire of transmission line Fig Equivalent circuit model We alter the circuit in (Fig.3) for (Fig.4) Fig Equivalent Thevenin circuit Then, current passing through grounding system ... pi-elements equivalent circuit into the n T -elements equivalent circuit and use characteristic matrix method If we consider elementary parameters of each span to be equal, then each T -circuit will be ... -elements equivalent circuit as in Fig A.1 Fig A1 Equivalent Thevenin circuit Trang 40 TẠP CHÍ PHÁT TRIỂN KH&CN, TẬP 11, SỐ 09 - 2008 where parameters of T -elements equivalent circuit as follows:...
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Báo cáo lâm nghiệp: "Costs of basic methods of forest landmaintenance in protective zones of high-voltage power lines in the Czech Republic" doc
Ngày tải lên :
07/08/2014, 10:21
... area of 2,797 of forest lands The goal of this survey is to use the results for making a decision which method of forest land maintenance in the zones under high- voltage power lines is economically ... was to find out the costs of basic methods of forest land maintenance in protective zones of high- voltage power lines (HVPL) 400 kV in the protective zone of 70–80 m in width, and 220 kV in the ... Hand cutting (using mechanical devices) is not used because of high manpower requirements and also because of its low productivity and high cost This option could be considered only if the stand...
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HIGH VOLTAGE XLPE CABLE SYSTEMS Technical User Guide phần 1 docx
Ngày tải lên :
08/08/2014, 01:21
... Cables Page High Voltage XLPE Cable Systems Techincal User Guide General information on High Voltage Cable Systems 1.1 Introduction The development of high voltage XLPE Cable Systems goes back ... methods, induced voltage High voltage cables have a metallic sheath, along which a voltage is induced as a function of the operating current In order to handle this induced voltage, both cable ... maintenance-free products to the utility industry At present, numerous high voltage XLPE cable systems with nominal voltages up to 500 kV and with circuit lengths up to 40 km are in operation worldwide Cable...
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HIGH VOLTAGE XLPE CABLE SYSTEMS Technical User Guide phần 2 pdf
Ngày tải lên :
08/08/2014, 01:21
... wherein ls = Impulse short -circuit current [kA] = surge factor (usually defined as 1.8) lc = Short -circuit current [kA] 2.8 Metallic sheath types The metallic sheath of high voltage XLPE single core ... following formula: I k,x tc I k ,1s with Ikx = Short -circuit current during x seconds [kA] tc = Duration of short -circuit [s] Ik,1s = Short -circuit current during second [kA] The above stated ... allowed Short -Circuit current capacity of metallic sheaths In addition to the above mentioned, the shortcircuit current capacity of metallic sheaths depends on their layout The short -circuit current...
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HIGH VOLTAGE XLPE CABLE SYSTEMS Technical User Guide phần 3 pps
Ngày tải lên :
08/08/2014, 01:21
... High Voltage XLPE Cable Systems Techincal User Guide XLPE Cable Reference Projects from Brugg BRUGG ... this voltage range all over the world Furthermore, BRUGG CABLES is one of the leading suppliers of oil-filled cables in the Middle East Brugg Cables Page 20 XLPE Cable Projects Project: 345kV Circuits ... East Brugg Cables Page 20 XLPE Cable Projects Project: 345kV Circuits K-Street #1 and #2 115kV Circuit Hyde Park Location: Boston, USA End-user: NStar Electric & Gas Scope of supply BRUGG: 345kV-XLPE-Kabel...
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BS 159 1992 high voltage busbars and busbar connections
Ngày tải lên :
28/09/2014, 23:11
... for high- voltage switchgear and controlgear standards BS 6926, Specification for copper for electrical purposes: high conductivity copper wire rod BS 7354, Code of practice for design of high- voltage ... test voltage shall be applied for 15 and shall be as given in Table © BSI 01-1999 BS 159:1992 Table — Power-frequency test voltages on apparatus after erection on site Rated voltage Site test voltage ... test-voltages shall be as given in Tables I, III and IV of BS 6581:1985 The test voltages shall be applied between each phase and earth in turn with the remaining phases earthed The test voltage...
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