35kV Four position Loadbreak Switch

 

YZFN-10 (20) series load switch is suitable for integrated transformers with AC frequencies of 50Hz and 60HZ and a rated voltage of 20kV. Transformer oil is used as the insulation and arc extinguishing medium, and the actuator is a spring energy storage device. Due to the three-phase linkage, the load

current can be turned on or off accurately and quickly. It is used as a control and protection device for industrial and civil electric energy in ring network power supply and dual power supply system.

The load switch has four power supply and transformer connection modes: ring network power supply,bus 1 power supply, bus 2 power supply and disconnection. According to the switching need of power supply line, the load switch is rotated clockwise or counterclockwise through the special control lever.Each time the switch is operated, it rotates 90° to a position and can rotate 360° in a cycle. The switch is available in T, R, S, H, V and terminal types, from which users can choose according to their needs.

 

 

 

1. High-Performance Design

Rated for 20kV, 50/60Hz AC systems

Transformer oil insulation & arc extinguishing for reliable operation

Spring-stored energy actuator enables fast, precise switching

2. Flexible Power Control

4 operation modes: Ring network / Bus 1 / Bus 2 / Disconnect

90° per rotation (360° full cycle), manually operated via control lever

Three-phase linkage ensures stable load current switching

3. Versatile Configurations

Multiple types available (T/R/S/H/V/Terminal) for diverse grid needs

Ideal for ring-network & dual-power systems in industrial/civil applications

4. Robust & Safe

Oil-immersed design enhances insulation and protection

Manual mechanical operation ensures fail-safe control

 

 

	Parameter	Unit	FYN33-12/630	FYN33-24/630	FYN33-40.5/630
1	Rated voltage	kV	12	24	40.5
2	Power frequency withstand voltage
	- Ground, interphase	kV	42	65	95
	- Isolating distance	kV	48	79	118
3	Lightning impulse withstand voltage
	- Ground, interphase	kV	75	125	200
	- Isolating distance	kV	85	145	215
4	Rated current	A	630	630	630
5	Rated short-circuit withstand current	kA	20/2s	25/4s	31.5/4s
6	Rated peak withstand current	kA	50	63	80
7	Main circuit resistance	μΩ	<200	<200	<200
8	Mechanical life	Times	>3000	>3000	>3000

 

 

 

 

 

 

 

Q 1. Are you factory?
A.YES, Welcome to visit our company and factory.

Q 2. How's the delivery time?
A. Usually it will take about 7-30 days for MOQ

Q 3.Can you design customer's packing?
A.YES.We can customized the package for you.

Q 4.Do you have abilityfor OEM/ODM cooperation?
A.OEM/ODM cooperation is welcomed. And we have full experience about them.

Q 5.We wants to know month capacity.
A. lt depends on which model. Generally, month capacity can reach near 100,000pcs.