Disconnecor Switch 12kv
| Price: |
US $ 11/Piece |
| Trade Terms: |
FOB |
| Min Order: |
1/Piece |
| Pay Type: |
L/C,T/T,D/P |
| Prod Model: |
IST-12/400 |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Operation: |
Manual |
| Run: |
Turn the Horizontal |
| Series: |
Three |
| Grounding: |
Single Ground |
| Type: |
High-voltage |
| Installation: |
Outdoor High-voltage |
| Structure: |
Three-column Disconnector |
| Brand: |
Oei Power |
| Certification: |
IEC IEEE |
| Common Model: |
Ist |
Product Description
Type IST off-load switchs are suitable for use in tropical zone, with a maximum ambient temperature of approximately 40
degrees Centigrade and an average temperature of approximately 28 degrees Centigrade with high humidity and heavy rainfall.
The preferred operational altitude is up to 1800 m above sea level.
| S.No | DESCRIPTION | UNITS | BIDDER OFFERED VALUE |
| 1. | Rated Voltage | KV | 12 KV |
| 2. | Frequency | Hz | 50 Hz |
| 3 | Rated continuous current | A | 630 |
| 4 | Impulse withstand voltage to ground | KV | 95 |
| 5 | Impulse withstand voltage across gaps | KV | 110 |
| 6 | Dry one-minute power frequency withstand voltage to ground | KV | 35
|
| 7 | Dry one minute power frequency withstand voltage across gap | KV | 45 |
| 8 | Wet one minute power frequency withstand voltage to ground | KV | 30 |
| 9 | Limits of radio interference 10KV and 1000 K.C/Sec |
| 250 uV |
| 10 | Temperature rise at rated current (max.) |
| 30oC at 50oC ambient |
| 11 | Dimensions and mechanical ,Electrical
values Of Polymer Insulator |
|
|
| 12 | Leaking distance | mm | 508 (minimum) |
| 13 | Dry arcing distance | mm | 210 (minimum) |
| 14 | Cantilever strength | kg | 400 |
| 15 | Tensile strength | kg | 1000 |
| 16 | Compressive strength | kg | 5400 |
| 17 | Tensile proof test load | kg | 700 |
| 18 | Dry power frequency flashover | KV | 85 |
| 19 | Wet power frequency flashover | KV | 55 |
| 20 | Dry one-minute power frequency withstand | KV | 70 |
| 21 | Wet one-minute power frequency withstand | KV | 45 |
| 22 | Impulse flash over positive | KV | 115 |
| 23 | Impulse flashover negative | KV | 140 |
| 24 | Power frequency puncture voltage | KV | 150 |
1.0 Scope & applications 1.1 The pole-mounted Line Sectionalizer / Disconnector are open type, air insulated switch. The make and Break switching operation are performed at "zero system voltage." in "OFF LOAD" condition, only for the isolation of the faulty circuits for the protection of 11 KV Distribution lines, Transformers, Capacitors, Cables, etc, from high transient lightening and surge Voltages. 1.2 The assembly of Gang operated three phase Pole Mounted Line Sectionalizer are supplied as a single unit with single pole mounting arrangement. The unit are facilitate the installation of the assembly on both sides (left or right) of the pole to operate and install the operating handle in accordance with site conditions. 2.0 System / conditions i) Nominal system voltage 11 KVii) Highest system voltage 12 KViii) Highest voltage for equipment 12 KViv) BIL 95 KVv) Phases 3 vi) Frequency 50 Hzvii) Rated Short circuit level of the system 18 KA (1 second)viii) System Earthing: 11 KV Star point / Neutral solidly grounded at Pole / PMT: 3.0 Climatic conditions i) Maximum ambient air temperature 50oCii) Maximum daily average temperature 45oCiii) Minimum ambient air temperature 0oCiv) Maximum sun temperature on exposed Horizontal surface 60oCv) Highest solar radiation intensity 1000 W/m2vi) Maximum relative humidity 95 %vii) Annual rain fall: 20 to 60 mm in 2 to 4 showersviii) Altitude Sea-levelix) Location Sea Coast (Interior is Semi-Desert).x) Pollution Severe marine pollution on account of windblown sand and dust with salt content and salt laden spray and mist. Washing action by rain is negligible, as rainfall is scanty. 4.0 Ratings and characteristics for line Sectionalizer 4.1 The Gang Operated pole mounted 11 kv Line Sectionalizer have the following ratings and characteristics based on 50 deg. C ambient temperature: i) Nominal voltage 11 KVii) Maximum design voltage 12 KViii) Rated continuous current 630 Amps iv) Impulse withstand voltage to ground 95 KVv) Impulse withstand voltage across gaps 110 KVvi) Dry one-minute power frequency withstand voltage to ground 35 KVvii) Dry one minute power frequency withstand voltage across gap 45 KVviii) Wet one minute power frequency withstand voltage to ground 30 KVix) Limits of radio interference 10KV and 1000 K.C/Sec 250 uVx) Temperature rise at rated current (max.) 30oC at 50oC ambient 4.2 Polymer insulator The mechanical and electrical characteristics of the Polymeric insulator are as under: 4.2.1 Dimensions and mechanical values i) Leaking distance 508 mm (minimum)ii) Dry arcing distance 210 mm (minimum)iii) Cantilever strength 400 kgiv) Tensile strength 1000 kgv) Compressive strength 5400 kgvi) Tensile proof test load 700 kg 4.2.2 Electrical values i) Dry power frequency flashover 85 KVii) Wet power frequency flashover 55 KViii) Dry one-minute power frequency withstand 70 KViv) Wet one-minute power frequency withstand 45 KVv) Impulse flash over positive 115 KVvi) Impulse flashover negative 140 KVvii) Power frequency puncture voltage 150 KV 5.0 Constructional featuresThe three pole disconnectors are mainly designed for a vertical mounting. The following elements could be changed or incorporated:- Fuseholder.- Earthing connection with locking device to prevent the connection to earth when the disconnector is closed or to close the device when the earth is connected.- The earthing disconnector can be placed in the entrance or exit of the main switch.- The earth disconnector is operating by means of an independent control.- The operating axis could be placed at left or right side.- The operating axis could be extending until 250, 420,500, 750 or 1000mm, these extensions includes a support to avoid it bend down.- The outdoor units are provided with different drills to permit the direct fixing to a post or to a frame previously fix to a post.
Our company is one of factory Of OEIpower, Local in No. 15, Tongbai, Industrial Zone, Nanyang City, Hean Province, China, OEIpower to provide complete solutions for the Energy sector, mainly power generation, transmission and distribution markets. OEIpower is able to lead turn-key projects and also cooperate in specific parts of engineering projects. Regarding products, OEIpower is creating a solid sales and distribution network in order to manage the main components involved in the energy sector and markets.
It is a professional Manufacturing. Meanwhile, it is specialized in power transmission and distribution products such as Insulators, Drop-out Fuse, Fuse link, Load Interrupter Air Switchs, Surge arrester, Outdoor Off-Load Isolator Switch Disconnector switch etc. We have won many orders for World markets, Like South Korea, Spain, Malaysia, Thailand, Yemen, etc.
Our most of the products have passed the type test performed by Electric Power lin Aeeseeory Quality Inspection Center of electric Power industry, such as Xi'an High Voltage Research Insitute. And IST off-load switch type IST-12KV/400A already passed CENTRAL POWER RESEARCH INSTITUTE HIGH-VOLTAGE LABORATORY India. Our 12KV 8KA Drop Out fuse already passed the ASTA testing in the year 2015.
Promise of After-sales Service
To ensure the quality of After-sales Service, We have established the After-sales Service Department, and compiled the process of after-sales service, We require service-man should passion, cordial, patient, careful, considerate and instant for customers. Our general service: After receive telephone, the local service-man direct to the site to solve the problem, to security reasonable interest of the customer. When finishing all the work. Service men must fill the bill of customers' feedback suggestion, and ask the customers' signature. Then deliver it to the After-sales Service Department as feedback information, then to the designing and exploiting department. Special condition: Directly send someone from company to dealing, Our products' guarantee days are two years. Within those days, Quality problems of causing by customers. We'll repair freely, Causing by customers using, operating and keeping un-properly, we'll repair permanently and charge properly. Out of guarantee days, we'll repair with charge (fee of component and repairing).
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