Product Introduction
General
KYN28 indoor metal-clad switchgear is a complete power distribution device for 3.6~24kV,3-phase AC50/60Hz,single-bus and single-bus sectionalized system.It is mainly 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 IEC,GB3906-91.In addition to be used with domestic VS1 vacuum circuit breaker,it can also be used with VD4 from ABB, 3AH5 from Siemens domestic ZN65A, and VB2 from GE,etc.,it is truly a power distribution device 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.
Service environment
1. Air temperature: -25℃~+40℃
2. Humidity: Monthly average 95%; Daily average 90% .
3. Altitude2500m
4. Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.
5. No frequent violent shake
Technical data
No. | Item | Unit | Parameter | ||
1 | Rated voltage | kV | 3.6~24 | ||
2 | Rated frequency | Hz | 50/60 | ||
3 | Rated current |
A | 630,1250,1600,2000,2500,3150,4000 | ||
4 | Branch busbar Rated current |
630,1250,1600,2000,2500,3150,4000 | |||
5 | Main busbar Rated current |
630,1250,1600,2000,2500,3150,4000 | |||
6 | 1min Power frequency withstand voltage | wet |
KV | 38 | 50/60 |
dry |
48 |
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) |
20/25/31.5/40 | |||
10 | Protection type | IP4X for housing |