24kV 4000 Air cabinet pole

Category：

Air insulation series

Retail price

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Yuan

Market price

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Yuan

Number of views:

1000

Product serial number:

EP 24/4000-31.5

Drawing No.:

RZP5.282i

Quantity

Stock:

Category

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Product description

Parameters

Description

Air insulation series is suitable for 12KV-40.5kV indoor switch cabinet(KYN28-12、KYN28-24、KYN61、VD4), including core insulating components such as shielded contact box, shielded wall bushing, sensor insulator, insulator cylinder, embedded pole, molded parts and so on.

Drawing No.	Specification	Match The Insulated Pull Rod	Match The Radiation Frame
RZP5.282i	EP 24/4000-31.5	ICRAP4.028c.05	ICRAP4.110a.05

Main technical data

Data	Value	Unit
Rated voltage	24	kV
Rated current	4000	A
Rated frequency	50	Hz
Rated short-circuit breaking current	31.5	kA
Operations of short-circuit breaking current interruption	30	time
Rated short-circuit making current	100	kA
Rated peak withstand current	100	kA
Rated short-time withstand current（4s）	31.5	kA
Rated single capacitor bank breaking current	630	A
Rated back-to-back capacitor breaking current	400	A
Short-time(1min) power-frequency withstand voltage	79	kV
Lighting impulse withstand voltage(peak)	145	kV
Circuit resistance at rated contact force	≤13	μΩ
Mechanical life	10,000	time
Contact closing force due to bellows and atmosphere	250±60	N
Counterforve at rated contact stroke	360±60	N
Contact limit erosion	3	mm
Shelf life	20	year
Partial discharge	≤1	pC
Rated operating sequence	0-0.3s-co-180s-co

Mechanical data of circuit equipped with interrupters

Data	Value	Unit
Rated contact stroke	12±1	mm
Contact connection stroke	3.5±1	mm
Average opening speed	1.1～1.5	m/s
Average closing speed	0.4～0.8	m/s
Rated operation pressure of contact	5300±300	N
Bounce duration of contact closing	≤2	ms
Out of simultaneity of contact closing and opening	≤1	ms
Max. overtravel	≤2	mm