KYN28 6.6KV switchgear metal clad power switchgear MV
switchgearKYN28-12 3.6-24kv IEC standerd
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.
Service environment
Ambient temperature:
Upper limit: 40°C and the average value measured within the day is
less than 35°C;
Lower limit: -25°C (storage and transportation allowed at -35°C);
Altitude: not more than 1000m;
environment humidity:
The average value of the relative humidity measured daily ≤95%;
The average value of water vapor pressure measured daily ≤2.2kPa;
Average monthly relative humidity≤90%;
The average monthly water vapor pressure is less than or equal to
1.8kPa.
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.
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 |
