KYN2B-12 Armoured Remavable AC Metal Enclosed Switchgear

Product Overview

KNY28-12 armoured removable AC metal enclosed switchgear (hereinafter referred to as switchgear) is a three-phase AC 50Hz indoor distribution device, which is used to receive and distribute 3-12 kV network power and to control, protect and monitor the circuit. This product can install various types of computer-based integrated relay protection devices on the panel of relay chamber, and realize the intelligent control of the system, It has the functions of remote control, remote measurement, remote communication and remote adjustment, and controls the field network through CAN bus with communication interface. It also has the functions of preventing misoperation of circuit breakers, preventing loaded push-pull handcarts, preventing live switch from closing grounding switches, preventing grounding switches from feeding electricity at the grounding position and preventing incorrect entry of live intervals, which are referred to as "five preventive" for short. The cabinet can be equipped with VSI (ZN63) and ZN12V vacuum circuit breakers, as well as imported VD4 vacuum circuit breakers and VC series vacuum contactors.

Use of environmental conditions 
1. Ambient air temperature: upper limit + lower limit of 40 C in general area -10 C; 
2. Elevation: 1000m; 
3. Temperature: 
Relative humidity: daily average is not more than 95%, monthly average is not more than 90%;water vapor pressure: daily average is not more than 2.2 kpa, monthly average is not more than 1.8 kpa； 
When the temperature drops sharply, condensation may occur, accompanied by pollution. This product is suitable for the following two more severe environmental conditions: 
(1) The condensation is infrequent (no more than twice a month on average) and slightly polluted;(2) Generally no condensation occurs (no more than twice a year on average) and serious pollution occurs. 
4. No fire, explosion danger or serious pollution, such as gases that corrode metals and destroy insulation, etc. 
5. There is no place with violent vibration, turbulence and vertical inclination not exceeding 80. Note: (1) Storage and transportation are allowed at -30 degree C.

(2) When the altitude exceeds 1000 m, it should be treated according to JB/2102 "Technical Requirements for High Voltage Electrical Appliances in Elevation Areas". When the altitude does not exceed 2000 m, no measures need to be taken for low voltage auxiliary equipment.

Use of environmental conditions 

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