33kv Pole Mounted High Voltage Protective Device Polymer Type Dropout Fuse Cutout

33kv Pole Mounted High Voltage Protective Device Polymer Type Dropout Fuse Cutout image

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Basic Info.

Model NO.

HRW-33/100

Shape

Circle

Fusing Speed

Fast K

Standard

IEC60282-2

Rated Current

100A, 200A

Rated Voltage

33 Kv

Creepage Distance

900mm

Breaking Current

6300A

Transport Package

Export Standard Package or as Client Requirement

Specification

ISO9001: 2015

Trademark

L&R

Origin

Wenzhou, Zhejiang

Production Capacity

20, 000PCS/Month

Packaging & Delivery

Package size per unit product

30.00cm * 25.00cm * 20.00cm

Gross weight per unit product

5.000kg

Product Description

Description
Drop-out fused cut out and load Switching fuse cutout are of outdoor used high voltage protective device.
To be connected with incoming feeder of distribution line it mainly protect transformer or lines from short
circuit and overload, and on/off loading current.

Components
Drop-out fused cut out is composed of insulator supports and fuse tube. Static contacts is fixed on insulator
support and moving contact is installed on two ends of fuse tube.
Fuse tube is composed of:
1. Inside arc estinguishing tube
2. Outer phenolic compound paper tube or epoxy glass tube
Load switching fuse cutout provides enforced elastic auxiliary contacts and arc-extinguishing enclosure for
switching on/off loading current.

Operating Principle
1. When working normally, fuse link tightened the fuse tube to be close position.
2. If system occur faults, big fault current melts fuse immediately and take place electric arc, which makes
arc extinguishing tube being heated and explode a lot of gases. This will produce high pressure and blow off
the arc along with tube.
3. After fuselink melt moving contact has no tightened strength, mechanism is locked and fuse tube
dropout.
4. Cutout now is in open position. Operator shall use insulating Link Rod to pull the moving contact.

Main Parameter

Type	Rated Voltage (kV)	Rated Current (A)	Breaking Current (A)	Impulse Voltage Bil (BIL)	Power Frequency withstand voltage	Leakage Distance (mm)	Weight (kg)	Dimension (cm)
HRW-33	33	100	10000	170	70	850	12	90X40X17
HRW-33	33	200	12500	170	70	850	12	90X40X17

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