KYN28A-12 (GZS1) metal armored removable switch cabinet

Product Introduction

KYN28A-12 (GZS1) metal armored removable switch cabinet is an indoor complete power distribution device for three-phase AC 50Hz, rated voltage 3.6~12KV single busbar and single busbar sectional system. It is suitable for indoor power supply systems in various power plants, substations, airports, docks, factories, mines, enterprises, hotels, high-rise financial buildings and civil buildings. It is used to receive and distribute electric energy and monitor and protect the power grid. The switch cabinet hasprevent mis-dividing and closingCircuit breaker; Prevent opening and closing under loadIsolation switch;Prevent live hanging (closed)Ground wire(Ground switch); prevent the circuit breaker with a grounding wire (grounding switch) from closing; prevent the electrical five-proof entry into the live intervalfunction, it is a power distribution device with superior performance. SwitchThe main components in the cabinet are domestic VS1 vacuum circuit breakers, or 3AE of General Siemens, VD4 of ABB and HVX12 of Schneider.

The switch cabinet complies with the requirements of the national standard GB3906 and the Ministry of Electric Power standard DL/T404, and has passed the type test of the National High Voltage Electrical Equipment Quality Supervision and Inspection Center.

Model and meaning

KYN28A-12

K—Armored metal-enclosed switchgear

Y—Removable

N—Conditions of use: (indoor)

28—Design serial number

12—Rated voltage (kV)

Product Features

1. Successfully passed Multiple test demonstrations such as condensation, temperature rise, mechanical operation and mechanical life, insulation, short-circuit opening and closing, internal combustion arc, etc. fully meet the different needs of different users for switch equipment;

 2. The grounding switch adopts a quick closing mechanism with short-circuit closing capability. A mechanical lock is installed on the connecting rod of the operating mechanism. When the grounding switch is in the closing state, it can prevent the circuit breaker handcart from being pushed into the circuit breaker or accidentally entering the live interval. The grounding switch can also be equipped with a locking electromagnet to achieve electrical interlocking between the grounding switch and non-cabinets;

3. The valve driving mechanism can be equipped with an electrical locking device to prevent exposure of live static contacts due to misoperation when the circuit breaker handcart is removed from the position, ensuring personal and equipment safety;

4. Prioritize the use of Xuji series microcomputer protection devices to achieve perfect coordination between the main circuit and the control circuit. Other types of protection devices can also be used to achieve intelligent operation of switching equipment;

5. Switching equipment can also be used The use of front-mounted current transformers makes equipment inspection and maintenance more convenient. The current transformers can be pulled out directly from the front, truly realizing installation against the wall and back-to-back, reducing the floor space; ensuring that handcarts of the same specification can be freely interchanged, and handcarts of different specifications cannot enter the working position.

Serial number

Name

Unit

Required value

1

Ambient air temperature

Maximum temperature

℃

+40

Minimum temperature

-25

Maximum daily temperature difference

K

25

Hottest monthly average temperature

℃

30

Maximum annual average temperature

20

2

Altitude

m

≤1000

3

Filth level

Level III

4

Humidity

Daily average relative humidity

℃

≤95

Monthly average relative humidity

≤90

5

Seismic resistance (horizontal velocity)

m/s²

0.2g

6

The amplitude of the common mode voltage induced on the auxiliary and control loops due to the switching operation in the main loop

kV

≤1.6

Quoted standards
GB/T 11022 Shared technical requirements for high-voltage switchgear and control equipment standards

GB 1207      Electromagnetic voltage transformer

GB 1208      Current transformer

GB 1984         High-voltage AC circuit breaker

GB 1985         High voltage AC isolating switch and grounding switch

GB 3906 3.6kV～40.5kV  AC metal-enclosed switchgear and control equipment

GB/T 5585  Copper, aluminum and their alloy busbars for electrical purposes

GB 6450     Dry-type power transformer

GB 11032   AC gapless metal oxide arrester

GB/T 12022   Industrial sulfur hexafluoride

GB 15166.2 High-voltage AC fuses Part 2: Current-limiting fuses

GB 50150   Electrical installation engineering, electrical equipment handover test standards

GB/T 4109  Insulating bushings with AC voltage higher than 1000V

SD 318        Technical conditions for high-voltage switchgear locking device

DL/T 402　    Technical conditions for ordering high-voltage AC circuit breakers

DL/T 404 3.6kV～40.5kV   AC metal-enclosed switchgear and control equipment

DL/T 486     High-voltage AC isolating switch and grounding switch

DL/T 593　    Common technical requirements for high-voltage switchgear and control equipment standards

JB/T 10305 3.6kV～40.5kV  Technical conditions for organic material pillar insulators in high-voltage equipment users

IEC 62271-100　High voltage AC circuit breaker

Technical parameters

Ordering Instructions

In order to provide products and solutions with high quality and efficiency, you need to provide the following information when ordering:

Main circuit wiring diagram, arrangement diagram, floor plan

Secondary schematic diagram

The model, specification and quantity of the main electrical components in the switch cabinet

Cabinet size

Electrical equipment summary table and quantity of accessories

Special requirements and instructions for technical parameters and other differences and product standard parameters