PRODUCT LIST:

Dropout Fuse Cutout

Standardized fuse cutout
ABFCO121 fuse cutout
ABFCO122 fuse cutout
ABFCO123 fuse cutout
ABFCO124 fuse cutout
ABFCO125 fuse cutout
300A & 400A fuse cutout
Load break fuse cutout
Wind-resistant fuse cutout
Fuse Cutout Fittings – Brass Casting
Fuse Cutout Fittings – Stamped parts
Fuse Cutout Fittings – Fuse Links
Fuse Cutout Fittings – Other Accessories

Surge Arrester

Low voltage surge arrester
Distribution surge arrester
Polymer surge arrester
Anti pollution surge arrester
Pillar surge arrester
Station surge arrester
Capacitive surge arrester
Line type surge arrester
Dropout surge arrester
Arrester disconnection, time, online monitor

Disconnecting Switch

ABG1 disconnecting switch
ABG2 disconnecting switch
ABG3 disconnecting switch
ABG4 disconnecting switch
GW1 disconnecting switch
GW4 disconnecting switch
GW5 disconnecting switch
Low voltage disconnecting switch

Insulator

Suspension insulator
Pin insulator
Post insulator
Cross arm insulator
Other insulator
Insulator hardware

Wall Bushing

Composite dry wall bushing
Porcelain wall bushing

Insulating Protection Cover

Abimat Electric

ADDRESS: Deyu Road 5, Xiangyang Industry District, Yueqing City, Zhejiang Province, China
Email: info@abimat-electric.com
Wechat: 18368780285

33kV Drop Out Fuse: The Essential Distribution System Protector

The 33kV drop out fuse is a key self-protecting device. It’s used a lot in electrical distribution networks. It works as a cheap but reliable way to protect transformers, feeders, and other gear from overcurrent on rural and suburban power lines.

Operating Principle and Key Components

This device works in a really simple way. Its main part is a fusible element—this sits inside a strong tube. The tube is made of epoxy resin or another material that doesn’t track electricity and can handle bad weather. When the power load is normal, the fusible link keeps the fuse parts tight with mechanical tension. This keeps the fuse in the closed (upright) position.

If there’s a long-lasting overcurrent or a short-circuit fault, the fusible element gets hot and melts—people call this “blowing.” It stops the circuit right away. This action takes away the mechanical tension. After that, the upper contact hinge loosens. The whole fuse tube then tilts down and swings away from the lower contact. This “drop out” setup creates a clear, easy-to-see air gap. It lets maintenance teams know the circuit is isolated, and it makes operations safer.

Key Design Features and Advantages

You can tell at a glance if something’s wrong—when the fuse drops down, that’s a clear sign of a fault. This makes it easier for teams to check power lines and find where the problem is.

It puts out electric arcs well too. The fuse tube is made to create de-ionizing gases when an arc starts. These gases are controlled, so they put out the arc fast—and that makes stopping the current safe.

It’s really reliable at protecting against overcurrent, and it acts fast. It keeps distribution transformers safe by separating them from network faults. That stops major damage from happening.

It also works to isolate parts. After the fuse trips, the clear gap keeps the faulty section separate safely. That lets workers do maintenance and repairs without risk.

Typical Applications

The 33kV drop out fuse is mainly used to protect distribution transformers that are mounted on poles. These transformers are usually between 500 kVA and 2 MVA. It’s also often used to protect small feeder branches and capacitor banks. It’s designed to work well outdoors, so it can handle different weather and environmental conditions.

All in all, the abimat 33kV drop out fuse is still a basic but important part of medium-voltage distribution systems. It’s simple, reliable, and shows faults clearly—these things make it a must-have for power companies around the world. It keeps important electrical infrastructure safe and protected.