Description
Air-insulated KYN28-12(GZS1-12) is mid-set type metal-clad and metal-enclosed switchgear. It is an ideal upgrading product for replacing the old metal-enclosed switchgear such as KYN1-10, JYN2-10, GBC-10 and so on.
Its advantages as follows:
● The cabinet shell is made of al-zinc-coated steel sheet, through CNC processing and multiple bending technique, then assembled with bolts. It is featured with high mechanical strength, neat and elegant appearance, powder coating treated door, good shock and corrosion resistance. Ingress protection level of the shell reaches IP4X.
● No matter which circuit breaker selected, make sure that the air insulation distance of its bare conductor is larger than 125mm, and compound insulation is larger than 60mm. The breakers are featured with long service life, high parameters, less maintenance, small size, etc.
This switchgear complies with IEC298 Alternating-current metal-enclosed switchgear and control gear for rated voltage above 1kV and up to and including 52kV , IEC694 Common specifications for high-voltage switchgear and control gear, GB3906 Alternating-current metal-enclosed switchgear for rated voltage of 3~36kV, DL404 Indoor AC high voltage switchgear panel, DIN.VDE0670 Alternating-current switchgear for rated voltage above 1kV, etc. It enjoys perfect and reliable anti-disoperation function.
Operation conditions:
Normal operating conditions, according to the IEC International Standards listed below, for indoor switchgear.
Ambient air temperature
- Less than or equal to 40°C
- Less than or equal to 35°C on average over 24 hours
- Greater than or equal to -5°C (-25°C on request)
Altitude
- Less than or equal to 1000 m;
- Above 1000 m, a derating coefficient is applied (please consult us)
Atmosphere
- No dust, smoke, or corrosive or inflammable gas and vapor, or salt
- Earthquake intensity: Magnitude 8
Humidity
- Average relative humidity over a 24-hour period ≤ 95%
- Average relative humidity over a 1-month period ≤ 90%
- Average vapor pressure over a 24-hour period ≤ 2.2 kPa
- Average vapor pressure over a 1-month period ≤ 1.8 kPa
