Product Range
| SEGMENTS | VOLTAGE RATING (kV) | MECHANICAL LOAD (KN) | CREEPAGE (mm/kv) |
|---|---|---|---|
| HV TRANSMISSION | 66 / 72 kV
110 / 132 / 145 kV 220 / 245 kV 400 / 420 kV |
90 / 120 kv
70 / 90 / 120 / 160 KN 70 / 90 / 120 / 160 KN 120 / 160 / 210 KN |
25 / 31 mm / kV
25 / 31 mm / kV 25 / 31 mm / kV 25 / 31 mm / kV |
| UHV TRANSMISSION | 765 kV | 120 / 160 / 210 / 320 KN | 25 / 31 mm / kV |
| SEGMENTS | VOLTAGE RATING (kV) | MECHANICAL LOAD (KN) | CREEPAGE (mm/kv) |
|---|---|---|---|
| DISTRIBUTION(DISC INSULATORS) | 11 / 15 kV
22 / 33 / 36 kV |
45 / 70 kV
45 / 70 / 90 KN |
25 / 31 / 40 mm / kV
25 / 31 / 40 mm / kV |
| PIN INSULATORS | 11 / 22 / 33 kV | 5 / 10 KN | 25 / 31 mm / kV |
| SEGMENTS | VOLTAGE RATING (kV) | MECHANICAL LOAD (KN) | CREEPAGE (mm/kV) |
|---|---|---|---|
| POST INSULATORS | 11 / 33 kV | 4 - 10 KN | 25 / 31 mm / kV |
| STATION POST INSULATORS | 66 / 110 / 132 / 220 / 400 kV | 4 - 10 KN | 25 / 31 / 40 mm / kV |
High voltage power systems experience high energy surges and these need to be diverted to protech the power lines and equipments. SRI metal oxide surge arresters are efficient surge diverting employed in electrical power system offering extreme reliability with excellent protective characteristic and temporary over voltage capability. The gapless construction in silicon rubber housing provides a design which in simple are reliable while remaining economical. SRI surge arrester are designed to meet the the most demanding service conditions. Shree Radhe Industries (SRI) Surge Arrester is state of art product using the most advanced rubber technology for its surge arresters in medium voltage range. The Surge Arresters are manufactured in awell define quality managemnet system and complies to all international standards such us IEC, Is, ANSI etc. Our arresters generally recommended for pole or pedestal mounting in vertical position. Failures due to flashovers and electrical overstress may be avoided following SRI recommended clearance between the arrester and any abjacent equipment
| SEGMENTS | VOLTAGE RATING (kV) | CURRENT (KA) |
|---|---|---|
| LT ARRESTERS ( Indoor Polymer Surge Arresters For Panel & Motor Application) | 0.5 KV TO 12 kV | 1.5 kV / 5 KA |
| LV ARRESTERS (DISTRIBUTION CLASS) | 0.5 kV TO 36 kV | 5 / 10 KA, CLASS 2 / 3 |
| HV ARRESTERS (STATION CLASS) | 36 kV TO 216 kV | 10 / 20 KA, CLASS 2 / 3 / 4 |
DESIGN
The design of SRI polymeric surge arrester comprises of :
METAL OXIDE NON LINEAR RESISTORS
Metal oxide varistor are composed of a specially formulated compound of zinc oxide and small amount of other selected metal oxides. These ingredients are mixed in powdered form, pressed to form a disc and fired at high temperature under specific temperature profile resulting in a highly non liner-resistance characteristic
FRP TUBE
The composite structure is made of a fiber glass reinforced synthetic resin which is designed to give maximum mechanical strenght. The silicon rubber housing also provide very high insulation withstand strenght to the SRI arrester
SILICON RUBBER HOUSING
SRI silicon compound are formulated to provide excellent hydrophobic characteristic and better balance of UV and tracking performance which limits leakage current.
CONDUCTING ELECTRODES
Specially designed and processed aluminium alloy castings are fixed to each and of arrester and the end aluminium castings are in firm electrical contact with internal MOV block stack assembly
SALIENT FEATURES
- Light weight and easy installation
- Excellect protective characteristic
- High durability and minimum power loss
- Excellent energy absorption capabilities and temporary over voltage characteristic
- Excellent anti tracking properties
- Superior performance under polluted environment
- Long service life and proper and sealing to prevent failure due to moisture ingress
- Desined & tested in accordance IEC 99-4 & ANSI-IEEE C62.11
DISCONNECTOR
High Voltage Ground Lead Disconnecter
FEATURES
Built in Ground Lead Disconnect (GLD) to separate arrester from system to prevent line lockouts Protects insulator from lightning and switching over-voltages Available in 3kV to 36kV system voltage
from the bottom of the arrester if the arrester has overloaded and failed. It is also known as a ground lead disconnector (GLD) or isolator. This current will cause the arrester body to fail if it is not stopped quickly. The first function of the ground lead disconnector is to disconnect the ground lead of the surge arrester in case of an internal failure of the arrester, preventing explosive failure of the arrester body. The ground lead disconnector contains a cartridge in series with a gap. The gap is shunted by a resistor. As the current rises, the The second function of the ground lead is to give a visible indication of arrester failure for arresters mounted on overhead distribution lines. If a lineman sees an arrester with its ground lead hanging in midair, he knows that he has a failure which must be replaced.
HIGH VOLTAGE INSULATING BASE
FEATURESSRI offers a wide range of Insulating Base for Surge Arrester widely used in industries for power distribution and transformers; it is manufactured under strict supervision. In addition to this, these goods are dimensionally accurate and have good capacity to bear wear and tear. A high voltage lightning arrester provided with a surge counting device mounted adjacent to its uppermost terminal by insulating members. These are arranged in a way to prevent them from being discharged directly to the ground and through the surge counter which indicate surge as well as the continuous leakage current.
HIGH VOLTAGE SURGE COUNTER
FEATURESSRI offers a wide range of Insulating Base for Surge Arrester widely used in industries for power distribution and transformers; it is manufactured under strict supervision. In addition to this, these goods are dimensionally accurate and have good capacity to bear wear and tear. A high voltage lightning arrester provided with a surge counting device mounted adjacent to its uppermost terminal by insulating members. These are arranged in a way to prevent them from being discharged directly to the ground and through the surge counter which indicate surge as well as the continuous leakage current.
| SEGMENTS | VOLTAGE RATING (kV) | CURRENT (kA) |
|---|---|---|
| ISOLATORS | 11 / 22 / 33 kV | 400 / 630 / 800 / 1250 A |
| AIR BREAK SWITCHES | 11 / 22 / 33 kV | 200 / 400 / 630 A |
| DROP OUT FUSES | 11 / 22 / 33 kV | 100 / 200 / 400 A |
| HORN GAP FUSES | 11 / 22 / 33 kV | 100 / 200 / 400 A |
ISOLATORS
The isolators are mechanically operated type of safety device incorporated for the isolation of system.The open position provides safe and desired isolation. They are widely applicable for isolation of part or complete system for carrying maintenance, repairs and similar activities where system has to be isolated from primary circuit. SRI offers double break center rotating polymeric Isolator in voltage range of 11-33 kV and current 400 A, 630 A, 800 A & 1250 A.
SRI Isolators are type tested as per IS/IEC standards at CPRI, ERDA to pass all required primary and supplementary tests.
AIR BREAK SWITCHES
AB Switch is an essential unit of all overhead power transmission line whcih is used to connect or disconnect the power system of certain part of overhead cable and transformer from the main power distribution line
SIR GOAB switches are designed to meet the varied requirements of our clients. Our GOAB switches are available in different forms single break and Gang Operated switches
DROP OUT FUSES
Shree Radhe Industries (SRI) offer a wide range of polymeric drop out fuse that is manufactured by using high quality raw materials. Our drop fuse extensively used for system protection by preventing faults of power transmission line and the transformer from power distrubance by acting as a secondary backup
HORN GAP FUSES
Electrical Horn Gap Fuses offered by SRI are used in electrical distribution lines along with electrical air break switches. These are manufactured from premium quality raw materials so as to assure our clients of our trustworthiness. safety of operation and easy installation are the characteristics of SRI horn gap fuse. We provide electrical horn gap fuse in varied specifications in accordance to the preference of customer.