KYN61-40.5 Series Cover


KYN61-40.5 Series Metal-clad Ring Main Unit Switchgear is often used in indoor power distribution systems with a rated voltage of 40.5kV (50Hz). KYN61-40.5 series is suitable for receiving and distributing electric energy in power plants, substations and industrial and mining enterprises, and has functions such as control, protection and monitoring of circuits, and can also be used in places with frequent operations.

How to order

KYN61-40.5 Series How to order


● The switchgear adopts an assembled structure, and the circuit breaker adopts a floor-standing trolley (handcart) structure;

● Equipped with a brand-new composite insulated vacuum circuit breaker, which has the advantages of good interchangeability and easy replacement;

● The frame of the trolley is equipped with a screw nut pushing mechanism, which can easily move the handcart and prevent damage to the pushing structure due to misoperation;

● All operations can be performed with the switchgear door closed;

● The interlocking between the main switch, the trolley and the switchgear door adopts the mandatory mechanical locking method to meet the requirements of "five levels of protection";

● There is ample space in the cable room, which can connect multiple cables;

● Fast grounding switch is used for grounding and closing short circuit;

● The enclosure ingress protection rating is IP3X, when the trolley room door is open, the ingress protection rating is IP2X.

Application environment

● Ambient temperature: -10℃~+40℃, the average value of 24h does not exceed +35℃.

● Altitude: ≤1000m;

● Relative humidity: daily average ≤95%, monthly average ≤90%;

● Water vapor pressure: daily average ≤2.2kPa, monthly average ≤1.8kPa;

● Seismic fortification intensity: Ⅷ;

● Installation site: no severe vibration and impact, and no fire, chemical corrosion, explosion and other dangers.

Technical data-sheet

Table1: Main parameters of vacuum switchgear

KYN61-40.5 Main parameters of vacuum switchgear Technical data-sheet

Table2: Main parameters of vacuum circuit breaker

KYN61-40.5 Main parameters of vacuum circuit breaker Technical data-sheet

Table3: Main parameters of spring operating mechanism

KYN61-40.5 Main parameters of spring operating mechanism Technical data-sheet

Appearance and mounting dimensions

KYN61-40.5 Series Appearance and mounting dimensions

Installation requirements:

● The height of the electrical room: ≥4500mm;

● The distance from the back of the switchgear to the wall: ≥1500mm;

● The flatness of the basic frame: ≤1mm/m2;

● The part of the foundation embedded channel steel above the ground shall not exceed 3mm;

● It can be fixed on the foundation with bolts or welding;

● The weight of the switchgear is about 1800kg;

● The width of the switchgear operation corridor: ≥3000mm (single row); ≥4000mm (double row, face to face).