VTK-40.5 series indoor high-voltage vacuum circuit breakerDetailed product description：

The VTK-40.5 series indoor high-voltage vacuum circuit breaker is a brand new product independently developed by Taikai. It combines the highest quality vacuum arc extinguishing chamber with the most advanced permanent magnet operating mechanism, and has the advantages of high parameters, high performance, and long service life. It is particularly suitable for frequent operation and poor environmental conditions.

Key Features:
1. The Xi'an High Voltage Apparatus Research Institute has passed a complete set of type tests with complete parameter specifications;
2. For E2 level circuit breakers (with extended electrical life), the product has undergone 274 short-circuit current breaking tests and does not require maintenance;
3. For M2 level circuit breakers (with extended mechanical life), the permanent magnet mechanism has an ultra-high life of 100000 cycles, and the entire circuit breaker can withstand up to 60000 cycles without the need to replace the arc extinguishing chamber;
4. For the C2 level circuit breaker, the product has undergone a complete set of tests on the breaking capacitor bank at the Shaoxing test station, and has a very low breakdown rate;
5. The product fully meets domestic and international standards such as GB1984-2003, GB/T11022-2001, DL/T403-2001, IEC62271-100:2001, etc;
6. The product installation plan is flexible and can be assembled into fixed, handcart, or center mounted structures, suitable for various fixed switch devices such as XGN and KGN, as well as various movable switch devices such as KYN61, GBC, JYN1, etc., all of which can easily meet the five prevention requirements.

Main technical parameters of VTK-40.5 series indoor high-voltage vacuum circuit breaker:

serial number	project	unit	Parameters
one	rated voltage	kV	forty point five
two	Power frequency withstand voltage (1min)	kV	ninety-five
three	Lightning impulse withstand voltage (peak value)	kV	one hundred and eighty-five
four	rated frequency	Hz	fifty
five	rated current	A	1250, 1600, 2000, 2500
six	Rated short-circuit breaking current	kA	twenty-five	thirty-one point five
seven	4s rated short-time withstand current	kA	twenty-five	thirty-one point five
eight	Rated peak withstand current (peak)	kA	sixty-three	eighty
nine	Rated short-circuit closing current (peak)	kA	sixty-three	eighty
ten	Rated capacitor group breaking current	A	four hundred
eleven	mechanical life	time	sixty thousand
twelve	Rated short-circuit current breaking times	time	two hundred and seventy-four
thirteen	Rated operating sequence		Min-0.3 s - HeFen-180 s - HeFen

Ordering Instructions:
1. Name, model, specifications, quantity, and delivery time of the circuit breaker;
2. Voltage of energy storage motor and operating voltage of closing and opening coils;
3. Names and quantities of spare parts and components;
4. If the user has any other requirements, they can specify them when placing an order.