12 4000-40 air cabinet pole 4000

Category：

Air insulation series

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Yuan

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Yuan

Number of views:

1000

Product serial number:

EP 12/4000-40

Drawing No.:

RZP5.282

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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
RZP5.282a	EP 12/4000-40	RAP4.076b.15	RAP4.110b.11
RZP5.282b	EP 12/3150-40	RAP4.076b.15	RAP4.110b.11

Main technical data

Data	Value		Unit
Rated voltage	12		kV
Rated current	3150	4000	A
Rated frequency	50		Hz
Rated short-circuit breaking current	40	40	kA
Operations of short-circuit breaking current interruption	30		time
Rated short-circuit making current	100	100	kA
Rated peak withstand current	100	100	kA
Rated short-time withstand current（4s）	40	40	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	48		kV
Lighting impulse withstand voltage(peak)	75		kV
Circuit resistance at rated contact force	≤13	≤12	μΩ
Mechanical life	10,000		time
Contact closing force due to bellows and atmosphere	250±60		N
Counterforve at rated contact stroke	340±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	9±1	9±1	mm
Contact connection stroke	3±1	3±1	mm
Average opening speed	1.3±0.2	1.3±0.2	m/s
Average closing speed	0.6±0.2	0.6±0.2	m/s
Rated operation pressure of contact	5000±300	5000±300	N
Bounce duration of contact closing	≤2	≤2	ms
Out of simultaneity of contact closing and opening	≤1	≤1	ms
Max. overtravel	≤2	≤2	mm