Withdrawable Medium Voltage Switch KYN28A-12 Metal Clad Switchgear
KYN28A-12 Metalclad Enclosed Withdrawable IEC standard Medium
Voltage switchgear
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 humidity 95%; Daily average humidity
90% .
3. Altitude :≤ 2500m
4. Ambient air not apparently polluted by corrosive and flammable
gas, vapor etc.
5. No frequent violent shake
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 |
The customer should offer the following information for order:
1. Wiring diagram of Main circuit Loop and Special Technical
Requirement;
2. Installation Arrangement Plan of switch panel;
3. Specification of component inside switch panel and the schematic
diagram of auxiliary loop and control loop diagram.
4. Other written documents specially required.
5. SLD(Single Line Drawing)
Knkong Electric provide 11KV switchgear according to the customer's
requirements, please send us the SLD then We could implement it
100%.11KV switchgear is our best selling international products,
with China's independently developed vacuum circuit breaker VS1
that allows us to compete with European products in the
international market.
