General:
KYN28 indoor metal-clad withdrawable switchgear(hereafter short as switchgear) is a complete power distribution device for 3.6~24kV, 3 phase AC 50Hz, single bus sectionalized system. It is main used for power transmission of middle/small generators in power plants, power receiving, transmission for substations in power distribution and power system of factories, mines and enterprises, and starting of large high-voltage motor, etc, so as to control, protect and monitor the system. The switchgear meets IEC298, GB3906-91. In addition to be used with domestic VS1 vacuum circuit breaker, it can be used with VD4 from ABB, 3AH5 from Siemens domestic ZN65A, and VB2 from GE, etc. It is truly a power distribution deviece with good performance. In order to meet the requirement for wall mounting and front-end maintenance, the switchgear is equipped with a special current transformer, so that the operator can maintain and inspect it in front of the cubicle.
KYN61-40.5( same as unigear Z3 .2) ai-insulated metal-clad withdrawable switchgear( hereinafter as "switchgear") is a kind ofMV switchgear. It is designed as withdrawable module type panel, and the withdrawable part is fitted with VD4-3 6E. VD4-40.5withdrawable vacuum circuit breaker manufactured by Cooper Nature company. It can also be fitted with isolation truck, PTtruck, fuses truck and so on. It is applicable to three phase AC 50/60 Hz power system, and mainly used for the transmission anddistribution of electrical power and control. protection, monitoring ofthe circuit.
Standards and specifications
IEC60694 The common technical requirements ofhigh voltage switchgear and controlgea
IEC62271-200 A.C.metal enclosed switchgear and controlgear at the rated voltage of 1kV~52kV
IEC62271-100 High voltage switchgear and controlgear-Part 100:Hi gh voltage A.C. circuit breaker
GB3906 3.6~ 40.5kV alternating current metal enclosed switchgea r and controlgear
GB1984 High voltage alternating current circuit breaker
GB/T11022 The common technical requirements of high voltage switchgear and controlgear
DL/T404 3.6~ 40.5kV alternating current metal enclosed switchgear and controlgear
12kV & 24kV KYN28 Metal Clad Air Insulated Switchgear
No | Item | Unit | Parameter |
1 | Rated voltage | kV | 7.2kV,12kV,17.5kV,24kV |
2 | Ratec frequency | Hz | 50/60 |
3 | Rated current | A | 630,1250,1600,2000,2500,3150.4000 |
4 | Branch busbar rated current | A | 630,1250,1600,2000,2500,3150,4000 |
5 | Main busbar rated current | A | 630,1250,1600,2000,2500,3150,4000 |
6 | 1 min power frequency withstand voltage(wet dry) | kV | 38/48,50/60/60/65 |
7 | Lightning impulse withstand voltage | kV | 75,95/125 |
8 | Rated short circuit breaking current(peak) | kA | 40/50/63/80/100 |
9 | Short time withstand current(4s) | kA | 20/25/31.5/40 |
10 | Protectiontype | | IP4X for housing |
KYN61-40.5 Medium Voltage Air InsulatedMetal Clad Switchgear
No. | Item | Unit | Parameters |
1 | Rated Voltage | kV | 36 | 40.5 |
2 | Rated Frequency | Hz | 50/60 |
3 | Rated Current | A | 630 3150 |
4 | Branch busbar rated current | A | 630 3150 |
5 | Maim busbar rated current | A | 630 3150 |
6 | imin power frequency withstand woltage | kV | 70 | 95 |
7 | Lightening impulse withstd voltage | kV | 170 | 185 |
8 | Rated Shorttime Withstand Current (4s) | kA | 20/25/31.5/40 |
9 | Rated Short Circuit Breaking Current(Peak) | kA | 40/50/63/80/100 |
10 | Protection type | | IP4X for housing |
11 | Rated voltage for control Circuit | V | DC110,DC220,AC220 |