Rn Series 3-40.5kv 50ka 2023 New Type Indoor Medium and High Voltage Fuses Made in China

Rn Series 3-40.5kv 50ka 2023 New Type Indoor Medium and High Voltage Fuses Made in China image

Get Latest Price Request a quote

Basic Info.

Model NO.

Arc-extinguishing Medium

Air

Installation

Fixed

Structure

ACB

Poles Number

Type

Circuit Breaker

Function

Conventional Circuit Breaker

Certification

ISO9001-2000, CCC

Defense

Secure

Transport Package

Material Flow

Specification

3-40.5kv 50kA

Trademark

CNKC

Origin

China

Production Capacity

5000pieces/Year

Packaging & Delivery

Package Size

55.00cm * 23.00cm * 9.00cm

Package Gross Weight

25.000kg

Product Description

This series of high-voltage AC fuses is suitable for indoor AC 50Hz, rated voltage 3kV-35kV power systems.

RN1 and RN3 indoor high-voltage current limiting fuses are used for overload and short circuit protection of power lines. The so-called circuit is the function of a fuse to cut off the short-circuit current before it reaches its peak. RN2 indoor high-voltage current limiting fuse is used for short-circuit protection of voltage transformers, with a breaking capacity of 10002MVA. During a short circuit, momentary disconnection should be carried out by limiting the line current to the minimum value, and the fusing current should be within the range of 0.6~1.8A within 1 minute.

Technical parameters and Installation size

Product Structural features:

A fuse is composed of two pillar insulators, a contact base, a fuse tube, a base plate, and other four parts. The post insulator is installed on the base plate, the contact seat is fixed on the post insulator, and the fuse tube is fixed in the contact seat, but the copper caps at both ends are wound on the porcelain tube. According to the rated current, the fuse in the fuse tube is wound onto the prismatic core (with the rated current less than 7.5A) with one or more fuses or directly installed in the tube in a circular spiral shape (with the rated current greater than 7.5A) and then filled with quartz sand. The copper caps at both ends are pressed with end caps, Secure with tin to maintain sealing.

When the overload current or short circuit current passes, the fuse will fuse immediately, and an arc will be generated at the same time. The quartz sand will immediately extinguish the arc. When the fuse is fused, the pull wire of the spring will also fuse at the same time and pop out of the spring, which indicates that the fuse has completed its task.

Melt tube structure

The melt tube is the main part of the fuse. It is made of fuse wires installed in the porcelain tube, filled with quartz sand in the parallel porcelain tube, and sealed at both ends. Melt tubes with a rated current below 7.5A and a rated voltage of 35V have their fuses wound around a specially made ceramic core, and melt tubes with a rated current above 7.5A; Its fuse is suspended in a porcelain tube

Usage conditions

RN1, RN3 and RN2 indoor quartz sand filled fuses are applicable to:

(1) The altitude shall not exceed 1000 meters.

(2) The temperature of the surrounding medium shall not be higher than+40 ºC and not lower than -40 ºC.

RN1 and RN3 type fuses cannot operate in the following environments:

(1) Indoor places with a relative humidity greater than 95%.

(2) Some places with explosive hazards due to burning goods.

(3) Places with severe vibrations, oscillations, or impacts.

(4) Areas with an altitude exceeding 2000 meters.

(5) Air pollution areas and special humid areas.

(6) Special locations (such as for X-ray devices)

Products real shot

A corner of the production workshop

Product packaging

Product application case

/* January 22, 2024 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

We are China Rn Series 3-40.5kv 50ka 2023 New Type Indoor Medium and High Voltage Fuses Made in China manufacture and supplier,You can get more details with Email,you will get cheap price or factory price.

Get Latest Price Request a quote