Hv Removable Isolating Links
Hv Removable Isolating Links image
Get Latest Price Request a quote
Quick Details
Product Details
The following documents were referred to during the preparation of this specification. In case of conflict, the provisions of this specification shall take precedence.
IEC 129:1975: Alternating Current Disconnectors (Isolators) and Earthing Switches
IEC 60694:2002: Common Specifications for High Voltage Switchgear and Controlgear
BS 729: Hot dip galvanized coating on iron and steel articles
IEC62271-102
Isolator (Disconnector) – a mechanical switching device which provides, in the open position, an isolating distance in accordance with Electrical Safety requirements.
SERVICE CONDITIONS
The isolator shall be suitable for continuous operation outdoors in tropical areas at altitudes of up to 2200m above sea level, humidities of up to 90%, average ambient temperature of +30ºC with a minimum of -1ºC and a maximum of +40ºC and heavy saline conditions along the coast.
4.2. DESIGN AND CONSTRUCTION
4.2.1 The Isolator, Solid Link shall be designed and constructed in accordance with IEC 129 and IEC 60694.
4.2.2 The isolating link shall be of the vertical opening, designed for single phase manual operation. It shall be easily removed and replaced by using a portable operating rod.
4.2.3 The isolating link shall incorporate double porcelain insulators to suit voltage requirements and mounted on hot dipped galvanised steel under base suitable for vertical mounting.
4.2.4 The isolating link shall be arranged so that each unit is mounted independently on an angle bracket. It shall be supplied complete with the angle bracket and accessories suitable for mounting on ‘U’ type steel channel. The drawings to be submitted shall indicate all the applicable mounting positions.
4.2.5 The isolator shall be designed such that in fully open position, it shall provide adequate electrical isolation between the contacts on each phase. It shall conform to the requirement as single point isolation for safety.
4.2.6 All steel parts shall be hot dip galvanized to BS 729. The minimum coating of galvanizing required is 80 microns.
4.2.7 The solid link shall be removable from the mounting by use of operating rod.
4.2.8 All current carrying parts of the isolator shall be made of high conductivity material.
4.2.9 The isolator shall be fitted with clamp connectors for Aluminium (ACSR) conductor of Aluminium (ACSR)conductor of up to 18.2mm diameter.
The rating of the complete isolator shall be as follows: –
Rated voltage
36 kV
Rated frequency
50 Hz
Rated lightning impulse withstand voltage
200 kV
Rated power frequency withstand voltage, dry
95 kV
Rated normal current
400 Amps
Rated short time withstand current for 3 sec, min.
18.0 kA
Minimum creepage distance of insulators
900 mm
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 |
We are China Hv Removable Isolating Links manufacture and supplier,You can get more details with Email,you will get cheap price or factory price.
Get Latest Price Request a quote
Popular Disconnector Switch Products
Iacm 24kv 50A 3 Phase Outdoor Switch Disconnector
High Quality Pin Type Porcelain Insulators for High Voltage
Railway Solid-Core Porcelain Station Glass Insulator
High Voltage Indoor Isolator Disconnector Isolated Switch
Popular Isolating Switch Products
Gw9-12kv Outdoor Disconnect Switch Isolating Break Switch
3 Phase Three Column Disconnector Gw9
IP66 1p 35A 500V Combination Changeover Rotary Isolating Switch
11kv Isolating Switch Gang Insulator Composite Cutout Fuse Ceramic Dropout Fuse
Ukf3-63 63A Wenzhou Factory Price Isolator Swith with Silver Contact
Popular jgtrade1 Products
Polyester Lined Glove Coated with PU (black)
Hkgwf-36 35kv Disconnector Switch 33kv Isolators Disconnect
Flexible Terminal Connectors for Tubular Bus-Bar Type Mds, Group C
High -Voltage Isolate Switch 12kv
Popular Switch Disconnector Products
33kv 630A Load Isolators High Voltage
Single Polecircuitbreaker (63A) Suitable Forpolemountedsplitmeters
High -Voltage Isolate Switch 12kv 600A
High Voltage Switch Disconnector Series Gw9-15
Tags: Disconnector Switch, Isolating Switch, jgtrade1, Switch Disconnector