DTSB 35 kV Disconnectors

Categories: High-Voltage Equipment, Disconnectors 1-220 kV, Outdoor Disconnectors 35-220 kV

Dimensional Drawing

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Description

Description

DTSB disconnectors for a voltage of 10-35 kV are designed to switch on and off the de-energized areas of the electrical circuits under voltage, switching off no-load currents of transformers and charging currents of overhead and cable lines, as well as grounding disconnected areas using stationary grounding switches. DTSB disconnectors manufactured for outdoor installation in three-pole, or single-pole configurations conform to the DSTU EN 62271-102 requirements.

Design:

DTSB disconnectors are of the vertical-breaking type. They consist of a frame, support insulators, insulating rods, a contact system, and grounding switches. The contact system of the disconnectors includes fixed contacts and moving contact blades. The fixed contacts are copper clamps mounted on support insulators. The contact blades are made of copper busbars installed edgewise and parallel to each other. The grounding device of the disconnector features a grounding switch and a fixed contact.

DTSI disconnectors are operated with the help of motor drives (RSD-1) or manual drives (RSM-1). Both types of drives have electromagnetic locking to prevent errors on the part of personnel.

The products can be supplied on factory support structures.

Designations of DTSВ disconnectors:

Key technical specifications of DTSВ disconnectors:

Technical parameters	Parameter value
Rated voltage, kV	10-35
Maximum operating voltage, kV	12-40,5
Rated current, A	1000-2000
Thermal withstand current (short-time current), kA	20-40
Rated electrodynamic current, kA	51-81
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	10

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