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KYN61-40.5 armored removable AC metal enclosed switchgear

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KYN61-40.5 mouth type armored removable AC metal enclosed switchgear (hereinafter referred to as "switchgear") Its main feature is that the cabinet is equipped with ZN85-40.5 type fully insulated vacuum circuit breaker and spring operating mechanism, and can also be equipped with ABB VD4-40.5 and HD4-40.5 cabinets, which are assembled with aluminum coated zinc plate and cold rolled steel plate by spraying plastic, improving the matching accuracy of handcart and cabinet. The handcart is very portable to push and pull, and has strong interchangeability. Beautiful appearance, complete scheme, safe and reliable use.

key word:

AC metal enclosed switchgear

Hotline:

400-0571-505

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Detailed introduction

Graphic details

Product Overview

This product is used in 35kV three-phase AC 50HZ power system as the power plant, substation and distribution room of industrial and mining enterprises to receive and distribute electric energy. It has the functions of control, protection and monitoring. This product complies with GB3906 "3~35kV AC Metal Enclosed Switchgear", GB/T11022 "Common Technical Requirements for High Voltage Switchgear and Control Equipment Standards", DL/T404 "Technical Conditions for Ordering AC High Voltage Switchgear", and IEC60298 "AC Metal Enclosed Switchgear and Control Equipment with Rated Voltages above 1kV and below 52kV".

Product model

Structure overview

This product is divided into two parts: cabinet and handcart. The cabinet body is bent by steel plate and assembled with bolts after plastic spraying. According to the functional characteristics, it can be divided into four parts: small wire room, relay instrument room, handcart room, cable room and bus room. Each part is separated by grounded metal partition. The protection grade of cabinet shell is IP4X; The door of the handcart room is open, and the protection grade is IP2X

The switchgear has main circuit schemes such as cable incoming and outgoing lines, overhead incoming and outgoing lines, bus connection, isolation, voltage transformer, lightning arrester, etc. The bus adopts composite insulation, and the interphase and connector are equipped with insulation sleeves made of flame-retardant materials. The adjacent cabinets of the main bus are separated by bus sleeves, which can effectively prevent the spread of accidents and play an auxiliary role in supporting the main bus. The cable chamber is equipped with grounding switch, overvoltage protection device, etc.

A metal valve is installed in front of the contact box. The upper and lower valves open automatically when the handcart moves from the disconnection/test position to the working position, and close automatically when the handcart moves in the opposite direction, effectively isolating from the high voltage. The interlocking between the main switch, handcart, grounding switch and cabinet door shall adopt the mandatory mechanical locking mode to meet the functional requirements of "five prevention".

The circuit breaker handcart adopts a screw drive propulsion mechanism to override the clutch. The screw nut pushing mechanism can be easily operated to make the handcart move between the test position and the working position. With the self-locking property of the screw nut, the handcart can be reliably locked in the working position to prevent accidents caused by the handcart moving due to the action of electric power. The overrunning clutch plays a role when the handcart moves back to the test position and reaches the working position, so that the operating shaft and the screw rod shaft automatically disengage and idle, which can prevent damage to the propulsion mechanism due to misoperation. Lever propulsion mechanism is adopted for other handcarts. The test working position is locked by a locating pin.

The general dimensions of the cabinet body are: width x depth x height (mm) 1400x2800x2600.

Overall dimensions of products

Conditions of Use

Normal service conditions

·Maximum ambient temperature:+40 ° C, minimum temperature: - 15 ° C

·The ambient humidity conditions are as follows: the average daily relative temperature does not exceed 95%

The average monthly relative humidity shall not exceed 90%

The average daily water vapor pressure shall not exceed 22kPa

The average monthly water vapor pressure shall not exceed 1.8kPa

·Condensation occasionally occurs under such conditions;

·The altitude shall not exceed 1000mm;

·The surrounding air is not obviously polluted by dust, smoke, corrosive and/or olefinic gases, steam or salt mist;

·The external vibration or ground motion from the control equipment of the high voltage standby switch can be ignored;

·The amplitude of electromagnetic interference induced in the secondary system shall not exceed 16kV.

Special service conditions

·In case of use under normal environmental conditions beyond the provisions of GB/T11022, the user shall negotiate with the company.

·To prevent condensation, the switch is equipped with a heater, which shall be put into use when the switchgear is in standby state.

·The heater shall also be put into operation during normal operation of the switchgear.

Main technical data

Serial No	project	Company	parameter
1	Rated voltage	KV	40.5
2	Rated frequency	Hz	50/60
3	1min power frequency withstand voltage (effective value)	KV		Isolating fracture
			95	118
	Lightning impulse withstand voltage (peak value)		185	215

	1 min power frequency withstand voltage of auxiliary control circuit	V	2000
4	Rated current	A	1250,1600,2000,2500
5	Rated short-circuit breaking current	kA	25,31.5
6	Rated short-circuit making current (peak value)		63,80
7	Rated short-time withstand current (4s)		25,31.5
8	Rated peak withstand current		63,80
9	Rated voltage of auxiliary control circuit	V	-110,-220,-220
10	Degree of protection		IP2X when enclosure IP4X compartment and circuit breaker compartment door are open
11	Overall dimensions (W * D * H)	mm	1400 x2800(3000)x2800(2600)(SF)
12	total	kg	2300

Ordering Instructions

Users shall provide the following information when ordering products:

·Full model of the product (including main circuit scheme number and auxiliary circuit scheme number);

·Combination sequence diagram of main circuit system;

·Electrical schematic diagram of auxiliary circuit;

·List of components in the cabinet;

·Other special requirements of the product shall be mentioned separately.

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