KYN61-40.5 Metal-Enclosed Armored Withdrawable High-Voltage Switchgear

Name: KYN61-40.5 Metal-Enclosed Armored Withdrawable High-Voltage Switchgear
SKU: N/A

Metal-Enclosed Armored Withdraw able High - Voltage Switchgear KYN 61-40.5 Model Installation and Operation Manual Contents 1. Main Features/ Overview 2 2. Main Technical Parameters 3 3. Switch Cabinet Structure Description 5 4. External Dimensions of Switch Cabinet 7 5. Structure Diagram of...

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Product Introduction

Metal-Enclosed Armored Withdrawable High-Voltage Switchgear

KYN61-40.5 Model

Installation and Operation Manual

Contents

1. Main Features/ Overview 2

2. Main Technical Parameters 3

3. Switch Cabinet Structure Description 5

4. External Dimensions of Switch Cabinet 7

5. Structure Diagram of Switch Cabinet 7

6. Switch Cabinet Installation 8

7. Primary Circuit Plans of Switch Cabinet 9

8. Ordering Instructions 12

KYN61-40.5 Metal-Enclosed Armored Withdrawable High-Voltage Switchgear

I. Main Features

1. The cabinet structure adopts assembled type and the circuit breaker adopts handcart floor type structure;

2. The new composite insulation vacuum circuit breaker is adopted with good interchangeability, simple replacement and other features;

3. The handcart frame is equipped with the feed screw nut feed mechanism and overrunning clutch, which can be used to easily move the handcart and prevent misoperation from damaging the feed mechanism;

4. All operations are carried out when the cabinet door is closed;

5. The interlocking among the main switch, handcart and switch cabinet doors adopts mandatory mechanical locking method and meets the "five-prevention" function;

6. The cable compartment has abundant space, in which multiple cables can be connected;

7. The high speed grounding switch is used for grounding and short circuit of loop;

8. The protection level of the enclosure is IP3X and when the handcart compartment door is opened, the protection level is IP2X;

9. The product complies with GB3906 and DL404 adopts international IEC-298 by reference.

II. Overview

As a complete set of indoor power distribution equipment with three-phase AV 50HZ and the rated voltage of 40.5KV, KYN61-40.5 (Z) armored withdrawable AC metal-enclosed switchgear (hereinafter referred to as the switch cabinet) is used in the power plants, substations and industrial and mining enterprises to receive and distribute the electric energy, to control, protect and detect the circuit and can also be used in the site with frequent operation. The switch cabinet meets international IEC-298, GB3906-91, DL404 and other standards.

Environmental conditions

Ambient temperature: upper limit +40℃, lower limit -40℃, the

average value measured in 24h of not higher than 35℃. Altitude: 1000~4000m.

Relative temperature: daily average value of not higher than 95% and monthly average value of not higher than 90%.

Seismic intensity: not higher than 8° .

Saturated vapour pressure: daily average value of not higher than 2.2kPa and monthly average value of not higher than 1.8kPa.

The sites with no fire, explosion hazards, serious pollution, chemical corrosion and violent vibration

II. Main Technical Parameters

Main Technical Parameters of Vacuum Switch Cabinet

Serial No.	Name	Unit	Numerical values
1	Rated voltage	kV	40.5
2	Rated current	kA	630, 1250, 2000, 2500
3	Rated frequency	Hz	50
4	Rated short-time withstand current	kA	20, 25, 31.5, 40
5	Rated peak withstand current	kA	50, 63, 80, 100
6	Rated power frequency withstand voltage	kV	95/lmin
7	Rated lightning impulse withstand voltage	kV	185
8	Rated short-circuit duration	S	4
9	Protection level		IP4X

Main Technical Parameters of Circuit Breaker

Serial No.	Name	Unit	Numerical values
1	Rated voltage	kV	40.5
2	Rated frequency	Hz	50
3	Rated power frequency withstand voltage	kV	95/lmin
4	Rated lightning impulse withstand voltage	kV	185
5	Rated current	A	630, 1250, 2000, 2500
6	Rated short-time withstand current	kA	20, 25, 31.5, 40
7	Rated short-circuit breaking current	kA	20, 25, 31.5, 40
8	Rated peak withstand current	kA	50, 63, 80, 100
9	Rated short-circuit duration	S	4
10	Opening time	S	30≤t ≤60
11	Closing time	S	50≤t ≤100
12	Times of rated short-circuit breaking current	Times	20
13	Mechanical life	Times	10000

Main Technical Parameters of Spring Operating Mechanism

Name		Unit	Numerical values
Rated operating voltage	Opening coil	V	DC220/110 AC220/110
	Closing coil
Rated operating current	Opening coil	A	0.96 (220V) 1.05 (220V)
	Closing coil
Power of charging motor		W	230
Rated voltage of charging motor		V	DC220, 110 AC220, 110
Charging time		s	≤12

Structure chart

II. Switch Cabinet Structure

Description

The switch cabinet is designed in accordance with the armored metal-enclosed switchgear standards in GB3906 and IEC298. The overall cabinet is composed of two main parts, a fixed cabinet and a withdrawable part (handcart). The cabinet structure is processed by CNC and combined and formed by using bolting. The internal switch cabinet is divided by metal partitions into the circuit breaker compartment, main bus compartment, cable compartment and relay instrument compartment. The protection level of the enclosure is up to IP4X and the protection level of all compartments is IP2X. All metal structural parts are reliably grounded and the compartments of the main loop system are equipped with separate pressure relief channels to discharge air.

1. Enclosure and partition

The enclosure and partitions of the switch cabinet are bolted by cold rolled steel sheets after processing and bending through the numerical control machine, so the assembled switch cabinet can ensure the unity of the structural dimensions. The switch cabinet is separated into the circuit breaker compartment, main bus compartment, cable compartment and relay instrument compartment, all of which are separated by the grounded mental partitions.

2. Handcart

According to the purpose, the handcart can be divided into circuit breaker handcart, voltage transformer handcart, measurement handcart and isolation handcart, etc. All kinds of the handcarts have the same external dimensions

and the same purposes of handcarts are interchangeable. There are test position/ isolated position and operating position for the handcart in the cabinet. Each position is equipped with an interlocking device to ensure that the handcart cannot be moved freely in the above two positions.

3. Circuit breaker compartment

The specific guide rail is installed in the circuit breaker compartment for the handcart to move. The isolation valve automatically opens or closes when the handcart is moved between the test position and the operating position, thus to ensure that the operating personnel do not touch the charged body. The handcart can be operated when the cabinet door is closed. The position of the handcart in the cabinet and any functional signs on the handcart can be seen through the observation window.

4. Bus compartment

The main bus is led from a switch cabinet to another switch cabinet, fixed with the fixed contact box through the branch small bus and fixed by the bus bushing when through the site plate of the adjacent cabinet. All buses adopt composite insulation method.

5. Cable compartment

In the cable compartment can be installed with PT, grounding switches, lightning arresters and multiple cables.

6. Relay compartment

On the internal plates and panels of the relay compartment can be installed with the control and protective elements, measuring and display instruments, charged monitoring indicators and other secondary components.

7. Interlocking device

The switch cabinet has a reliable interlocking device to effectively protect the safety of the operating personnel and equipment.

l The handcart can only be moved between the test position and the operating position when the grounding switch is in opening position.

l The circuit breaker handcart can only be operated when it is reliably positioned in the test or operating position.

l The secondary plug can not be pulled out when the handcart is in the operating position.

l The handcart cannot be moved from the test position to the operating position when the grounding switch is closed.

l The grounding switch can only be operated when the handcart is in the test position.

8. Grounding device

Inside the cable compartment is set with a 10×40mm2 grounding bus separately, which can run through the adjacent cabinets and is well contacted with the cabinets.

IV. External Dimensions of Switch Cabinet

External dimensions (width × depth × height): 1400 × 2800 × 2600

V. Structure Diagram of Switch Cabinet

A. Relay instrument compartment

B. Bus compartment

C. Circuit breaker compartment

D. Cable compartment

VI. Switch Cabinet Installation

Height of electric apparatus compartment: ≥4500mm;

Distance of the cabinet back to the wall: ≥1200mm;

Flatness of base frame: ≤1mm/m2

The part of the base embedded channel steel above the ground shall not exceed 3mm;

Fixed on the base by bolts or welding method;

The weight of the switch cabinet is about 1400kg;

Operating corridor width of the switch cabinet (single

row): ≥ 1500mm, double rows (face to face) ≥ 2500mm

VII. Primary Circuit Plans of Switch Cabinet

Plan No.		01	02	03	04
Primary circuit diagram
Main components	Rated current		1250~2000
	Circuit breaker ZN85-40.5	1	1	1	1
	Current transformer LZZB8-35A		1	2	3
	Grounding switch JN-40.5/31.5	0~1	0~1	0~1	0~1

Purpose		Overhead incoming and outgoing lines	Overhead incoming and outgoing lines	Overhead incoming and outgoing lines	Overhead incoming and outgoing lines

Plan No.		05	06	07	08
Primary circuit diagram
Main components	Rated current		1250~2000
	Circuit breaker ZN85-40.5	1	1	1	1
	Current transformer LZZB8-35A		1	2	3
	Grounding switch JN-40.5/31.5	0~1	0~1	0~1	0~1

Purpose		Cable incoming and outgoing lines	Cable incoming and outgoing lines	Cable incoming and outgoing lines	Cable incoming and outgoing lines

Plan No.		09	10	11		12
Primary circuit diagram
Main component s	Rated current		1250~2000
	Circuit breaker ZN85-40.5	1	1		1	1
	Current transformer LZZB8-35A		1		2	3
	Grounding switch JN-40.5/31. 5	0~1	0~1		0~1	0~1

Purpose		Left (right) communication	Left (right) communication		Left (right) communication	Left (right) communication

Plan No.		13	14	15	16
Primary circuit diagram
Main components	Rated current		1250~2000
	Circuit breaker ZN85-40.5	1	1	1	1
	Current transformer LZZB8-35A		1	2	3
	Grounding switch JN-40.5/31.5	0~1	0~1	0~1	0~1

Purpose		Left (right) communication	Left (right) communication	Left (right) communication	Left (right) communication

Plan No.		17	18	19	20
Primary circuit diagram
Main components	Rated current		1250~2000
	Circuit breaker ZN85-40.5	1	1	1	1
	Current transformer LZZB8-35A		1	2	3
	Grounding switch JN-40.5/31.5	0~1	0~1	0~1	0~1

Purpose		Overhead incoming and outgoing lines	Overhead incoming and outgoing lines	Overhead incoming and outgoing lines	Overhead incoming and outgoing lines

Plan No.		21	22	23	24
Primary circuit diagram
Main components	Rated current		1250~2000
	Circuit breaker ZN85-40.5	1	1	1	1
	Current transformer LZZB8-35A		1	2	3
	Grounding switch JN-40.5/31.5	0~1	0~1	0~1	0~1

Purpose		Cable incoming and outgoing lines	Cable incoming and outgoing lines	Cable incoming and outgoing lines	Cable incoming and outgoing lines

Plan No.		25	26	27	28
Primary circuit diagram
Main components	Rated current		1250~2000
	Voltage current	2	3		Dry type transformer
	Fuse RN2-35	3	3	3	RN1~35
	Lightning arrester			3
	Capacity				20~100KVA
Purpose		Voltage transformer	Voltage transformer	Lightning arrester

VIII. Ordering Instructions

Users shall provide the following data in ordering:

1. Main plan numbers of primary circuit, single bus system diagram, arrangement diagram and layout chart

2. Electrical schematic diagram of secondary loop and terminal arrangement diagram;

3. Models, specifications and quantities of electrical components in the switch cabinets;

4. Specifications and materials of main bus and branch buses;

5. Names and quantities of spare parts and components;

6. Special requirements shall be negotiated with the manufacturers.

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