KYN28-24 (High Voltage Switchgear)

1. Scope of application and main uses

KYN28-24 switchgear has various functions to prevent misoperation, including preventing the trolley from moving with load, preventing the grounding switch from closing the circuit breaker when it is closed,preventing the grounding switch from being closed with electricity, and preventing mistakenly entering the live compartment.

KYN28-24 switchgear is equipped with ZN73 series mid-mounted high-voltage AC vacuum circuit breaker and solid-sealed vacuum switch with excellent performance. The secondary circuit of the switchgear is equipped with advanced and reliable control and protection components; The bus is insulated by heat shrinkable insulation material or epoxy coating, the electrode shape is optimized,and the cabinet structure is compact. KYN28-24 switchgear is a power distribution equipment with advanced technology, stable performance, reasonable structure, easy use, safety and reliability.

2.Product reference standards
  a.GB1984 High Voltage AC Circuit Breaker
  b.GB3906 3~35KV AC metal enclosed switchgear
  c.Common technical reguirements of GB/T11022 standards for high-voltage switchgear and control equipment.
  d.DL/T404 Indoor AC high voltage switchgear ordering technical conditions
  e.DL/T593 Technical guidelines for common ordering of high voltage switchgear

3.Use environmental conditions

● Normal use conditions

 a.Ambient temperature: maximum temperature: + 40°C, minimum temperature:-15 °C, and the average value measured within 24 hours does not exceed 35 °C.

 b.Humidity conditions are as follows:
    -the average daily relative humidity does not exceed 95%;

    -the average daily water vapor pressure does not exceed 2.2 kpa: the average monthly water vapor pressure does not exceed 1.8 kpa;

    Condensation occasionally occurs under such conditions;

 c.The altitude does not exceed 1000m;

 d.the ambient air is not significantly contaminated by dust, smoke, corrosive and/or combustible gases,vapors or salt spray;

 e.Vibration or ground motion from outside the switchgear and control equipment is negligible;

 f.The magnitude of electromagnetic interference induced in the secondary system does not exceed 1.6KV.

● Special conditions of use

When used under normal environmental conditions exceeding the specifications of GB/T11022, the company and users can negotiate and reach an agreement on special operating conditions exceeding the normal operating conditions.In order to prevent condensation, the switchgear is equipped with a heater. When the switchgear is in standby state, it should be put into use. When the switchgear is operating normally, attention should also be paid to putting the heater into operation.