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RDZ Series 110-220 kV Disconnectors

Description

RDZ-series disconnectors for a voltage of 110, 150 and 220 kV are designed to switch on and off the de-energized areas of the electrical circuit under high voltage, as well as grounding disconnected areas of the grid using stationary grounding switches.

RDZ-series disconnectors of a horizontal-rotating type for outdoor installation manufactured in three-pole or single-pole configurations conform to the DSTU EN 62271-102 requirements.

Design:

Disconnectors are manufactured in a single-pole design, partly disassembled for transportation, and also delivered (depending on the order) for the assembly of a single-pole, two-pole, or three-pole device, which is connected to the drive on site.

Disconnectors are designed as a two-column device with the rotation of the main blade in a horizontal plane. There are the following installation options: three-pole, two-pole, and single-pole. The pole of the disconnector to which the drive is connected is called the leading pole. The pole of the disconnector that is connected to the leading one is called the trailing pole. The leading pole is connected to the drive and to the driven pole with the help of connecting elements  on site. Each disconnector consists of a base, insulating columns, a current-carrying system, and a grounding circuit.

The disconnector is operated with the help of an RSM-180-type (analog of ПР-180 (manual drive) У1 (ХЛ1) (Climatic version and placement category – temperate or cold climate with outdoor installation)), or a RSD-1-type electromechanical drive (analog of ПД-14 (prospective motor drive), ПД-5 (prospective motor drive), ПДУ-01 (universal motor drive) ( У1 (ХЛ1) (Climatic version and placement category – temperate or cold climate with outdoor installation)).

 

Designations of RDZ disconnectors:

 

 

Key technical specifications of RDZ disconnectors:

 

Technical parameters

Parameter value
Rated voltage, kV

110-220

Maximum operating voltage, kV

126-252

Rated current, A

1000-3150

Thermal withstand current (short-time current), kA

31,5-50

Rated electrodynamic current, kA

80-125

Rated operating frequency, Hz

50-60

Rated voltage of  of the power supply circuits of the motor drive, V:

DC

AC

220

220, 380

Mechanical resource, cycles of V/V

10000

Service life (provided there is no depletion of mechanical resources),

no less than. years,

30

 

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