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MZW32-40

Outdoor Vacuum circuit breaker MZW32-40.5

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Description

 

Rated voltage, kV: 35
The highest working voltage, kV: 40.5
Rated current, A: 630, 1250, 1600, 2000, 2500

Vacuum circuit breakers MZW32-40.5 three-phase high-voltage vacuum circuit breaker for outdoor installations intended for switching electrical circuits under normal and emergency conditions in three-phase mode with a frequency of 50 Hz at a rated voltage of up to 35 kV. Execution options: in the painted steel or in the stainless case.

The switch can be used in substations, industrial and mining enterprises, in cities and in power systems for protection and control, in places of frequent switching and in city automatic distribution networks.

Device created with the use of the latest achievements and technologies complies with IEC (56), GB1984 and DL403 standards. In addition, it has a high degree of reliability and lack of maintenance.

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Parameters

 

Operating conditions MZW32-40.5:

  1. Altitude: up to 1000 m.
  2. Ambient temperature: from -45°C to + 45°C.
  3. Humidity: the average value of relative humidity during the day is not more than 95%; the average value of relative humidity during the month is not more than 90%.
  4. seismic resistance up to 8 points.
  5. Environment is not explosive, does not spread dust, aggressive gas and steam in areas that destroy metal and insulation.
  6. Service life of the circuit breaker 20 years.
  7. The warranty is valid for 2 years.
  8. Icing Thickness: 20mm

Main Parameters:

MZW32-40.5-1

 

Compliance with standards:

GB1984 standard: high voltage circuit breaker for AC networks.

GB3309 standard: mechanical test of high-voltage switching equipment with normal temperature.

GB / T5465.2 standard: digital designation of electrical equipment

GB5582 standard: external insulation of high voltage electrical equipment

GB7354 standard: partial discharge measurement.

GB / T11022 standard: general technical requirements for high voltage switches standards of control equipment.

DL402 Standard: Technological Description of High Voltage Switch alternating current.

DL403 Standard: Technological Description of High Voltage Switch alternating current of external installation on 10-35 sq.

 

Dimensions:

MZW32-40.5-2

MZW32-40.5-3

 

 

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Solutions

 

MZW32-40.5-4

The principle of operation of the circuit breaker MZW32-40.5

The principle of operation of the switch is based on the suppression of electrical energy, when the contacts open in a vacuum. The high dielectric strength of the vacuum gap ensures reliable arc extinction. In the on position, a transition occurs between the main contacts, in which the main contacts open, with the formation of a visible gap.

The switch is disconnected inside the vacuum chambers, the switch is not

It forms certain products of arc burning, both when it is turned off and when it is turned on.

The vacuum circuit breaker has excellent reliability and switching value.

 

Controllers:

We have multiple controllers for different users and different power distribution networks:

MZW32-40.5-5

Communication ports: RS232/485，GPRS ，GMC，optical fiber with Communication protocols: DL/T634-1997 (IEC 60870-5-101 Transmission Protocols).

 

Installation

MZW32-40.5-6

Drawing of Seated Installation on One Post

MZW32-40.5-7

Drawing of Seated Installation on Two Posts

 

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