Disconnectors РДЗ (RDZ) voltage classes 35, 110, 150, 220, 330 kV

Disconnectors РДЗ (RDZ) voltage classes 35, 110, 150, 220, 330 kV

   High-voltage disconnectors for outdoor installation of a horizontal rotary type are designed to create a visible disconnecting gap in the disconnected position in accordance with regulatory requirements, as well as grounding disconnected sections using earthing switches, which are integral with the disconnector. Disconnectors are manufactured in single-pole and three-pole versions (with one leading pole) without grounding knives, with one or two grounding knives. Our plant produces the following РДЗ (RD(Z) disconnectors:

РД(З)-35/1000 УХЛ1, РД(З)-110/1000 УХЛ1, РД(З)-150/1250 УХЛ1, РД(З)-220/1000 УХЛ1, РД(З)-330 II/3150 УХЛ1.

Тип изделий

Номинальное напряжение, кВ

Номинальный ток, А

Ток электро-
динамической стойкости, кА

Ток термической стойкости, кА

РД(З)-35/1000 УХЛ1

35

1000; 2000

80

31,5

РД(З)-110/1000 У1

110

1000; 2000

80

31,5

РД(З)-150/1250 У1

150

1250

100

40

РД(З)-220/1000 УХЛ1

220

1000; 2000; 3150

100

40

РД(З)-330 II/3150 У1

330

3150

160

63


   The disconnector includes poles consisting of a base, supporting insulating columns, main contacts, one or two grounding blades, installed at the request of the Customer, and a drive. Disconnectors of voltage classes 110 and higher are supplied with an electric motor drive for controlling the main knives (created on the basis of an on-load tap-changer drive for power transformers) and a manual drive for operating the grounding knives. The main knives of the 35 kV disconnector are operated manually. At the request of the customer, other options for completing drives are possible. Insulation columns can be made of porcelain or polymer insulators. Disconnectors are manufactured in enlarged units and supplied to the Customer for the installation of the device at the site of operation.

   The design of the disconnectors takes into account the experience of their operation in power systems, the nodes of the contact system have been improved, which increase the reliability and service life. Actuators, both electric motor (having a long production experience at our plant) and manual, are simple in design and reliable in operation. Disconnectors are manufactured in accordance with IEC requirements, with normal and reinforced insulation, in climatic versions U1 and UHL1.

   The service life is 30 years.

   The warranty period is 5 years.