Disconnector MGN19-12

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Description

 

High-voltage internal AC disconnector MGN19-12 manufactured by METTZ Group, together with the operating mechanism of type CS6-1, is designed to close and open three-phase circuits of 50 Hz with a rated voltage of 10 kV when there is voltage, but without load.

Disconnector MGN19-12-2

MGN19-12 Disconnect switchgear complies with the national standard GB1985 (Disconnector and earthing switch AC for high voltage) and the international standard IEC60129.

Rated voltage, kV: 10

Rated currents, A: 400, 630, 1000, 1250

Operating Conditions MGN19-12

External air temperature: from -40 ° C to +40 ° C (for storage and transportation temperatures up to -45 ° C are permissible);

Altitude: 1000 meters and below;

Relative humidity:

  • The average value of humidity per day is not more than 95%;
  • The average value of humidity per month is not more than 90%,
  • The average value of the pressure of saturated water vapor per day is not more than 2.2 kPa. The average value of the saturated water vapor pressure per month is not more than 1.8 kPa.

Installation in locations with a fire hazard, explosion hazard, severe contamination, chemical corrosion and strong vibration is not allowed.

Parameters

 

Main technical parameters:

Disconnector MGN19-12-3

Solutions

 

Design features:

The disconnector of models MGN19-12 / 400, 630, 1000, 1250 has a knife switch design and consists of a base frame (4), an insulator (3), a movable knife contact (2) and a fixed contact (1)

 

Overall and mounting dimensions of the model MGN19-12

The design of the disconnector model MGN19-12C is similar to the design of model MGN19-12. The difference between them is that the output terminal of the knife plate of the MGN19-12C disconnector is located on the other side of the mounting frame so that it can be mounted in the aisles between the compartments (see Fig. 2). The disconnector can be equipped not only with a dependent manual operating mechanism, but also with other types of mechanisms.

 

Overall and mounting dimensions

Overall and mounting dimensions of the model MGN19-12
Disconnector MGN19-12-4

Disconnector MGN19-12-5

Fixed contact 5 Main shaft

Knife contact 6 Fixed knife contact (type C)

Insulator 7 Work handle

 

Frame
Disconnector MGN19-12-6

Product Type A B C

MGN19-12 / S400, 630 490 436 4-14 x 24

MGN19-12 / S1000, 1250 510 530 4-18 x 28

MGN19-12C / S400, 630 460 625 4-14 x 24

MGN19-12C / S1000, 1250 505 745 4-18 x 28

Packaging, storage and transportation

Before packing and after unpacking the boxes, be sure to check the completeness of the documentation and spare parts.

Disconnector MGN19-12-7

The product packed in wooden boxes of a strong and reliable design with full protection against rain. Boxes are provided with all packaging labels.
In the case of transportation, the product should be placed in an upright position; it should not be subjected to strong vibration. Protect the product from rain and moisture. Do not damage the surface coating of insulators and products.
The product should be stored in a dry and well-ventilated area. During prolonged storage, rubbing parts of the product should be lubricated with technical petroleum jelly.

When ordering MGN19-12, the following parameters must be specified:

  1. Type, name and number of disconnectors
  2. Rated voltage, rated current and rated breaking capacity of the disconnector
  3. Name and quantity of spare parts and accessories
  4. Special operating conditions, if any.

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