First, an overview:

Type KYN58-40.5 metal clad withdrawable switch cabinet is my company developed a new type intermediate switch cabinet developed based on the introduction of foreign advanced technology, the imported aluminum zinc coated steel plate assembly, it eliminates the old switch cabinet operating heavy push force will not flexible fee, the whole cabinet is made of high. The strength of high-quality cold-rolled steel sheet after bending with rivet nut and bolt connection, CNC machining effectively ensure the accuracy of the assembly, accurate positioning, and quick. The cabinet body is divided into four separate chambers: the parent metal separator line room, handcart room, cable room, instrument room, have pressure isolation room release channel, handcart room and bus room, the metal valve is provided with a feeding chamber. When the valve opens automatically push cart, valve automatically shut off the car out of hand, ensure the safety of operating personnel.

Two, with the following advantages:

1, the friendly man-machine interface makes the switch cabinet operation procedure, the formula, the operator at a glance.

2, the unique design of the propulsion mechanism to make the car in the launch process can automatically find a contact, the contact is more reliable.

3, the upper and lower lifting width adjustable tool hand cart, you can easily put different types of hand vehicles on the ground or work platform overhaul.

Two, the 4 plug is closed completely.

5, the grounding interlock is simple and reliable.

6, combined valve open and flexible, circuit breaker pulled out along with the, the valve is automatically closed and force the lock, to eliminate the error touch the danger of high voltage.

7, CT installed by the cabinet after the vertical assembly to lift, increase the cable room space, the cable connection is greater than 800mm, so that the cable installation is convenient and easy to maintain.

Three, the normal use of environmental conditions

1, altitude: not more than 1000 meters;

2, the ambient temperature: not more than +40, not less than 25 degrees Celsius, the daily average temperature difference is not more than 35;

3, the wind speed is not more than 35m/s;

4, the installation place no explosion danger, chemical corrosion and violent vibration.

Four, the main technical parameters

1, rated voltage 40.5kV

2, rated current 630A, 1250A, 1660A, 2000A, 2500A

3, rated power 20Hz, 25Hz, 31.5Hz

4, rated short circuit breaking current 50kA, 63kA, 80kA

5, rated short-circuit current 20kA, 25kA, 31.5kA

6, rated 4S thermal stability current 50kA, 63kA, 80kA

7,1min power frequency withstand voltage 95kV

8, lightning impulse withstand voltage 185kV

9, protection class IP4X