> Products > Load Switch > Indoor high voltage AC vacuum load switch fuse combination switch

Products

New Products

Indoor high voltage AC vacuum load switch fuse combination switch

Timetric Electric is a large manufacturer and supplier of 40.5kV indoor vacuum load switches and fuses in China. Over the years, we have been focusing on high voltage equipment and our products are competitively priced and favored by customers in South America, the Middle East, Africa and Southeast Asia. We are committed to providing quality services to customers in these regions.

Send Inquiry

Product Description

Product overview

FZRN21C-40.5D(solid seal) Indoor high voltage AC vacuum load switch + fuse combination, Suitable for AC 50H2, rated power 40.5kV power system, is based on GB3804 and GB16926 Designed and developed by itself, suitable for AC 50Hz, rated voltage 40.5kV network, specially designed for wind power generation and solar power generation 35kV system,can be used as an independent electrical unit in 40.5kV power system or box substation. The product has reasonable structure and simple and reliable action.

This product has the advantages of large breaking capacity, safety and reliability, long electrical life, frequent operation, less maintenance and so on. At the same time, it has an obvious isolation fracture and a ground knife with relevant closing ability. It is equipped with an electric spring operating mechanism and has remote control ability

Product definition

Environmental Conditions

◇ Altitude: No more than 2500m

◇ Ambient air temperature: upper limit +40℃, lower limit -25℃

◇ Relative humidity: the daily average is not more than 95%, the monthly average is not more than 90%

◇ There is no obvious pollution such as corrosion or flammable gas

◇ No frequent violent vibration

Main technical parameters

The rated parameters of load switch are shown in Table 1

Content		Unit	Vacuum load switch	Vacuum load switch- Fuse combination appliance
Rated voltage		kV	40.5	40.5
(1min)Rated short-time power frequency withstand voltage:Phase to phase,ground/vacuum fracture/isolation fracture			95/118	95/118
			185/215	185/215
Rated lightning impulse withstand voltage (peak):Phase to phase ground/vacuum fracture/isolation fracture
Rated frequency		Hz	50	50
Rated current		A	630～1250	最大Max:63:80:100
Rated active load breaking current		A	630～1250
Rated no-load transformer breaking current		kA	63～125	一
Rated closed-loop breaking current		A	630～1250	一
Rated cable charging current		A	21	21
Rated line charging breaking current		kA	2.1	2.1
Rated ground fault breaking current		kA	100	100
Rated short-circuit closing current		kA	50、63、80	一
Rated peak withstand current		kA	50、63、80	一
Rated peak withstand current	Load switch (including disconnecting switch)	kA/s	20/425/431.5/4	一
	Ground switch		20/225/231.5/2	一
Mechanical life (load switch/isolation switch/ground switch)		time	5000/2000/2000
weight		kg	245

Technical parameters of vacuum load switch are shown in Table 2

Content	Unit	Value
Contact opening distance	mm	18±1
overtravel		4±1
Allowable wear thickness of contact		3
Three phase division and closing are different	ms	≤2
Contact closing bounce time	ms	≤5
Average closing speed	m/s	0.7±0.2
Average opening speed	m/s	1.6±0.2
Closing time(rated operating voltage)	S	≤10
Opening time(rated operating voltage)	MS	≤45
Loop resistance (including isolation)	μΩ	≤180(except fuse)

Operating mechanism parameters are shown in Table 3

Content		Unit	Value
Rated voltage of energy storage motor (fluctuation range:85%~110%)		V	DC110,AC220,DC220
Rated output power of closed storage motor		W	≤70
Energy storage time		S	≤15
Rated operating voltage	Switching electromagnet (85%~110%)	V	AC220	DC220
Rated working current	Switching electromagnet	A	3.5	2.0
Rated maximum output power	Switching electromagnet	W	700	440