Fuse Link, - 25 AMP - K

Fuse Link, - 25 AMP - K image

Get Latest Price Request a quote

Quick Details

Product Name:

Fuse Link, – 25 AMP – K

Brand:

Oei Power

Certification:

IEC IEEE

Structure of Operating:

Manual

Common Model:

Ist

Run:

Turn the Horizontal

Series:

Three

Grounding:

Single Ground

Number of Poles:

Three Pole

Movement Mode:

Horizontal Rotary Type

Grounding Mode:

Grounding

Operation:

Manual

Installation:

Outdoor High-voltage

Structure:

Three-column Disconnector

Type:

High-voltage

11:

33:

Trademark:

OEI Power

Transport Package:

Cartons Pallets Wooden Case

Specification:

IEC62271-102

Origin:

China Nanyang

HS Code:

8535309000

Product Details

The fuses mention in the table below will be exposed to the following environmental conditions:
   Maximum altitude above mean sea level less than 1,000 m;
   Maximum ambient air temperature 400C;
   Maximum daily average ambient air temperature 300C;
   Minimum ambient temperature150C; and
   Maximum relative humidity 100%.

Requirements
The fuse-links and fuse-end fittings shall be of the following ratings (table below) and comply with the IEEE Std C37.4 -2016 or an equivalent international standard. The fuse- links shall be used primarily for protection of distribution transformers, laterals and sub- laterals.
The fuse links shall be capable of withstanding 125% ofthe transformer rated full load current continuously and periodic over-loads up to 150% ofthe transformer rated full load current.

The current-time characteristics of the fuse-links offered shall be submitted with the tender
Markings shall be provided on the fuse-links in accordance with ANSI/IEEE Standards.

Scope

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.

Electrical System

Type IST off-load isolator switch are designed for continuous operation on a 3-phase 3-wire 11, 15,22,24,27and 33,36kV,50/60Hz distribution system with the star-point of the source-point transformer earthed through an Arc Suppression Coil or Earthing Resistor.

Standards
1. Type IST off-load isolator switch are complied with relevant requirements of the following standards together with all current amendments;

IEC62271-102:2003 :High-voltage alternating-current disconnectors and earthing switches
IEC60129:1984 :Alternating current disconnectors and earth switches
IEC 60265-1:1998 :High voltage switches – Part 1:Switches for rated

voltage above 1kV and less than 52kV

IEC 60694: 1996 :Common specifications for high-voltage switchgear and

controlgear standards

IEC 60815:1986 :Guide for the selection of insulators in respect of

polluted conditions

BS EN ISO 1461 :Hot dip galvanized coatings on fabricated iron and

                              steel articles- Specifications and test methods
4.0                    Construction
4.1                    General
4.1.1               Type IST off-load isolator switchs are the vertical/Horizontal mounting
Type for mounting on a single or H-pole structure for overhead
lines or feeders from the energized sections.

4.1.2               Type IST off-load isolator switchs are compatible and ready for
installation on tubular steel poles and spun concrete poles.
4.1.3 The design are of an air insulated "rocking insulator"
type with two fixed insulator posts and one moving
insulator post per phase.

4.1.4    All steel and iron parts shall be galvanized to protect from corrosion as
per BS EN ISO 1461

          4.1.5 Type IST off-load isolator switchs are equipped with a single operating mechanism and suitable coupling bars that shall operate all phases simultaneously and that independent operations of each
                     pole,irrespective of the state of the other poles,is not permitted
SPECIFICATIONS

	i. Rated Voltage	12kV		24KV	36KV
	ii. Rated Continuous Current Carrying Capacity	Not Less Than 400A Up to 630A
	iii. Rated Short-Time Withstand Current (rms)	12KV		24KV	36KV
		>=20KA / 3 sec			>=25KA/ 3 sec
iv. Lightning Impulse Withstand Voltage (peak) -To earth and between poles min max		12KV	24KV		36KV
		60KV 75KV	95KV 125KV		145KV 170KV
-Across the isolating distance min max		70KV 85KV	110KV 145KV		165KV 195KV
v. Power Frequency Withstand Voltage(r.m.s) -To earth and between poles		12KV	24KV		36KV
		28KV	50KV		70KV
-Across the isolating distance		32KV	60KV		80KV
vi. Average Ambient Temperature (Maximum)		28ºC (40ºC)

i. Humidity Range	0-100%
ii. Preferred Altitude Requirement	Up to 1,800m
iii. Insulators Total Creepage Distance (mm) Min Max	12KV	24KV	36KV
	192	384	576
	465	600	900