Our 30kv 5ka polymer lightning arrester is made using cutting edge technology operated by highly skilled technocrats. A wide variety of 15kv lightning arrester options are available to you, such as safety standards, usage, and standard or nonstandard. This will be applicable to the effectively earthed 11 kv systems coefficient of earth not exceeding 80 percent as per is. The rated voltage of lightning arresters shall be 9 kv rms.
All ferrous parts should be galvanized as per is 2633 1972 or its latest. Model study of lightning protection of 110 kv substation. Polymer housed moa for 110kv the polymer housed moa for 10kv. The source of the lightning was represented by the atp models type15 surge function and type ramp function and the surge arrester was represented by the movtype 92 component. Ieee 11 0 50 100 150 200 250 300 0 20 40 60 80 100 120 m peak current ka darveniza love whitehead ieee suzuki. A dc surge arrester is generally composed of a shell, a nonlinear resistance sheet, a spring, a pressure release device, a sealing device, etc. Lightning arrester ratings the rating of a lightning arrester is given below, normal or rated voltage. Select base part number of lej215 from page 11 for 15 kv voltage class.
Peak voltage amplitude kv distance to point x m u yphase a u yphase b u yphase c u zphase a u zphase b. Pdf model study of lightning protection of 110 kv substation. We also show the performance of mov arrester metal oxide varistor inovercoming lightning stroke trouble, where arrester can decrease voltage up to 15. The range comprises of ac and dc solutions up to 1,100kv and arresters for special applications like railways, dcvoltage limiting devices and many other purposes. A wide variety of 11kv polymeric lightning arrester options are available to you, there are 63 suppliers who sells 11kv polymeric lightning arrester on, mainly located in asia. Following assembly, each arrester is subjected to a battery of electrical tests to assure the highest quality and inservice field performance. The top countries of supplier is china, from which the percentage of 11kv polymeric.
In this context, this research work proposes multiple lightning arresters for the protection of 11 kv substation transformers under different. Te connectivity raychem mv surge arresters hda0 abc additional accessory options available on request. This voltage is determined during the course of testing the arrester to ieee standard c62. Surge arrester placement for substation lightning protection. Pdf the highvoltage switchgears are frequently exposed to lightning strokes. A lightning arrester is essentially a collection of billions of microscopic junctions of metal oxide grains that turn on and off in microseconds to form a current path from the top terminal to the ground terminal of the arrester. Lightning arrester lighting arrester oem manufacturer.
The demand of electricity is being increased day by day. As pioneers in the field of silicone rubber sr insulation and one of the few suppliers. It consists of a spark gap in series with a nonlinear resistor. The lighning arrestoer rating should be above this level but below 11 kv so that 9 kv arrestor is suitable. Lightning arrester is to protect the system from any high. For ease of reference, we have described them as surge arresters or only arresters for all types.
The lightning arresters are used to protect power system from high voltage surges. Electrical centre a 1 11 kv 45 kn disc insulator nos 260. Type polimhm surge arresters maximum system voltage 2. Lightning arrester installation 4kv existing circuit 12. No description of technical parameter unit data 1 nominal system voltage kv rms 33kv 2 maximum system voltage kv rms 36. Overvoltage protection metaloxide surge arresters in. A lightning arresters or a surge diverter is a protective device which conducts the high voltage surges on the power system to the ground.
About 37% of these are power distribution equipment, 17% are other electrical equipment. Abstract the thesis deals with the analysis of construction of power lines and substation switchyard of 3311 kv. Technical specification for 11kv22 kv surge arresters. Ieeeiec lightning arrester arresters for ac and dc applications. The ge tranquell line of surge arrester products provide excellent protective. The specification stipulates the minimum requirements for 11kv and 33 kv surge arresters acceptable for use in the company and it shall be the responsibility of the supplier to ensure adequacy of the design, good workmanship and good engineering practice in the manufacture of the surge arresters for kenya power. It is an ac rating and should in all circumstances be higher than the maximum linetoground. Metaloxide surge arresters in highvoltage power systems.
Surge diverter lightning arrester working lightning. This table documents how well the arrester clamps lightning and switching surges, which is the fundamental purpose of arresters. The dmxn surge arrester is designed to meet the following. The main bus 33kv is connected to grid located at sector25, indiranagar, lucknow. Polymer lightning arrester 30kv 5ka lightning arrester. The function of the surge arrester is to allow the discharge of any dangerous overvoltage before it can do damage and then to restore the line to. Mo resistor is generally in the range of 2 kvcm at a given current ib in. In todays life electricity plays a very vital role. It is designated by the maximum permissible value of power frequency voltage which it can support across its line and earth terminal while still carrying effectively and without the automatic extinction of. It is customary, therefore, to call an arrester up to 245 kv a lightning arrester and beyond 245 kv a surge arrester. Franklin lighting arrestor is a device used to protect the electronic power systems from the damage. Line installation and protective equipment specifiers guide. Arrester fundamentals application of arresters and other overvoltage protection schemes. Type dmxn surge arresters maximum system voltage 2 to 36 kv.
A higher rated arrester increases the ability of the arrester to survive on the power system, but reduces the protective margin it provides for a specific insulation level. Critical points are typically close to the line entrance of. Technical specification construction of 3311 kv primary substations. At the core of the raychem hda design is our improved zno varistor. High voltage surge arrester specification applications. Surge arresters are used to protect transmission lines, transformer or other equipments from transient voltage. Both arrester survival and equipment protection must be considered in arrester selection. Technical specification of 11 kv 5 ka lightning arrestor galvanization. Lightning impulse the lightning impulse test was performed under dry conditions by applying 15 positive and 15 negative fullwave lightningimpulse voltages to the test sample. Siemens surge arresters have been successfully tested to the latest ansiieee standard c62. The arrester mcov is shown in group 2 of table 1 and given in kv 1 kv volts.
Highvoltage surge arresters safe and reliable protection of electrical equipment abb surge arresters are the primary protection against atmospheric and switching over voltages. The voltage was recorded at the substation 11022 kv and at all loads in the electric network, and was drawn by the plotxwin program. They help in maintaining the voltage produced by the lightning. Abb offers a complete range of surge arresters for high and medium voltage applications. Type dmxn surge arresters maximum system voltage 2 to. Mediumvoltage surge arresters digital asset management. Type polimhm surge arresters maximum system voltage. Design of lightning arresters for electrical power systems. Pdf effect of grounding resistance and lightning arrester non. The designs comply with the iec 600994 and ansiieeec62.
Now the transmission line first parallel connected with lightning arrester to diverge surge, followed by cvt connected parallel. The proper selection and application of lightning arresters in a system involve. Available as singleunit arrester rated up to 300 kv or twounit arresters for. Why do we make the rating of surge arrester kv always. Hi friends, in this article, i am going to discuss about lightning arrester types and lightning arrester working principle. Arresterfacts001 arresterworks, consultants, arrester. Surge arresters mv hv 11kv 33kv medium high voltage. This specification covers the general requirements of the design, manufacture, testing, supply and delivery of surge arresters of gapless metaloxide type for 11kv. Arresterfacts001 arrester lead length why does it matter the purpose of an arrester is to limit the voltage stress on the insulation electrically in parallel with it during a surge event.
Note that on page 11 reference is also made to tables cr1 and cc1. The surge arrestor shall be connected between phase and earth to an overhead system that is generally solidly earthed neutral 11kv and 33 kv. In other words, lightning arrester diverts the abnormals high voltage to the ground without affecting the continuity of supply. The voltage was recorded at the substation 11022 kv and at. Coordination of parallelconnected mo surge arresters. Up to 245 kv lightning surges and beyond 245 kv switching surges are found to be more severe, section 18. We can define a lightning arrester as a collection of billions of microscopic junctions of metal oxide. Mansa trading company offering 75a200a 11 kv high voltage lightning arrester at rs 1200piece in delhi. The application and selection of lightning arresters. Our 30kv 5ka lightning arrester is made with precision and our quality guidelines are as per the international quality standards to ensure cost effectiveness and high value to. Pdf lightning protection of overhead power distribution lines. Lightning arrester the substation equipments such as conductors, transformers, etc. Get best price and read about company and get contact details and address. Discharge voltage table in every arrester datasheet, you will find a most important table about the discharge voltage of the arrester in question.
717 117 1365 1095 1160 644 1617 85 1634 1465 1570 1271 1039 1454 443 95 376 978 305 203 1622 88 822 465 333 566 1022 1273 1494 1298 566 505 981 982 530 198 830 1233 179 1094 375 1131 942 387