High Voltage Fully Insulated and Fully Enclosed Ring Mv Hv Switchgear

High Voltage Fully Insulated and Fully Enclosed Ring Mv Hv Switchgear image

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Basic Info.

Model NO.

KYN28-12

Installation

Removable

Structure

Floorstanding

Current

Standard

IEC62271

Type

Air Insulated

Rated Current

630-4000A

Rated Frequency

50Hz

Custom

Customizable

Class of Protection

IP X4

Transport Package

Simple Packing

Specification

Fully Enclosed Ring

Trademark

L&R

Origin

China

Packaging & Delivery

Package Size

800.00cm * 1500.00cm * 2300.00cm

Package Gross Weight

500.000kg

Product Description

Standards

The switchgear and main apparatus contained in it comply with the latest IEC Standards:
• IEC 62271-1 for general purposes
• IEC 62271-200 for the switchgear
• IEC 62271-102 for the earthing switch
• IEC 62271-100 for the circuit-breakers
• IEC 60071-2 for the insulation coordination
• IEC 62271-106 for the contactors
• IEC 60265-1 for the switch-disconnectors
• IEC 60529 for degree of protections

Service environment:
a) Air temperature:Maximum temperature: +40ºC; Minimum temperature:-25ºC

b) Humidity:Monthly average humidity 95%; Daily average humidity 90% .

c) Altitude above sea level:Maximum installation altitude: 2500m

d) Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.

e) No frequent violent shake

Technical data

Rated voltage	kV	6
Rated insulation voltage	kV	12
Rated power frequency withstand voltage	kV 1min	28
Rated lightning impulse withstand voltage	kV	75
Rated frequency	Hz	50/60
Rated short time withstand current	kA 3 s	up to 50
Peak current	kA	up to 125
Internal arc withstand current	kA 1s	up to 50
Main busbar rated current	A	up to 4000
Circuit-breaker rated current	A	630 1250 1600 2000 2500 3150
Circuit-breaker rated current with forced ventilation	A	3600 4000

Vaccum Circuit Breaker

Description	Unit	Value
Rated voltage	kV	6
Rated short-time power frequency withstand voltage (1min)(1min)		42
Rated lightning impulse withstand voltage (peak)		75
Rated freq	Hz	50,60
Rated current	A	630	630	1250	1600	1250	1600	1600	2000
		1250	1250	2000	2500	2000	2500	2500	3150
				3150		3150	4000*	4000*
Rated short-circuit drop-out current	kA	20	25	31.5		40		50
Rated short time withstand current		20	25	31.5		40		50
Rated short time continual time	s	4
Rated peak withstand current	kA	50	63	80		100		125
Rated short-circuit closing current		50	63	80		100		125
Rated single/ back-to-back capacitor bank drop-out current	A	630/400(40kA is 800/400)
Rated capacitor bank closing inrush current	kA	12.5(frequency no more than 1000Hz)
Opening time (rated volt.)	ms	20~50
Closing time (rated volt.)		35~70
Mechanical life	Times	30,000
Rated break times for rated short drop out current		50
Rated operation voltage	V	AC110/220 DC110/220
Rated current of power storing motor	W	70
Average opening speed	m/s	0.9~1.3
Average closing speed		0.4~0.8
Rated operation procedure		opening-0.3s-closing opening-180s-closing opening

Fully type-tested

The switchgear has undergone all the tests required by the international (IEC) Standards. Each switchgear unit is subjected to routine tests in the factory before delivery. These tests are intended to provide a functional check of the switchgear based on the specific characteristics of each installation.

IEC type tests
• Short-time and peak withstand current
• Temperature rise
• Internal arc capability
• Dielectric test
• Making and breaking capacity of circuit-breaker
• Earthing switch making capacity (top application)
• Mechanical operations of circuit-breaker and line
disconnector
• IP degree and impact test

IEC routine factory tests
• Visual inspection and check
• Mechanical sequence operations
• Cabling check
• Electrical sequence operations
• Power frequency withstand voltage
• Measurement of the resistance of the main circuits
• Secondary insulation test

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