China Wholesale Electric Earth Switch Suppliers – JN17-12/40 Indoor High Voltage AC Ground knife electronic earthing switch for MV switchgear – Timetric

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China Wholesale Electric Earth Switch Suppliers – JN17-12/40 Indoor High Voltage AC Ground knife electronic earthing switch for MV switchgear – Timetric Detail:

LYE103 JN17-12/40 Indoor high voltage AC electrical earth switch

Summary

JN17-12/40 indoor AC high voltage earthing switch is an advanced level product with high-tech parameters performance.After comprehensive evaluation,it conforms to GB1985 and IEC129 standard ,applies to power system of 3-12kV and three-phase AC 50Hz.It owns short-circuit making capacity to protect other electric equipment not being damaged.Can be used with various high voltage switchgear,also play a protective role in the high-voltage electrical equipment overhaul.

Ambient condition:

Ambient temperature scope:form 12°C to40°C

Heavy cold zone:25°C allowed

Altitude not more than 1000m

Relative humidity:average everday not exceeding 95%

Monthly average not more than 80%

There shall have no conductive dust,no corrosive gasess,no severe vobaration and impact.no combustion and explosion on the site for switch operating.

feature

Indoor high voltage AC electrical earth switch use resin insulators, on which live parts, made of silver-plated electrolytic copper (99.9%), are placed. The blades are directly connected to the drive shaft. Contact elements are overdimensioned according to the requirements in order to guarantee, together with a high contact pressure between blades and contacts, a reduced ohmic resistance at the contact surface and a minimum metal wear-off during the life of the grounding switch, with the necessary robustness to withstand thermal and mechanical stresses under short-circuit conditions.

Item		Unit	Data
Rated voltage		kV	12
Rated short-time withstand current		kA	40
Rated short-circuit duration		s	4
Rated short-circuit making current		kA	100
Rated peak withstand current		kA	100
Rated insulation level	PF withstand voltage (1 min)	kV	Phase to earthPhase to phase	42
	Lightning impulse withstand voltage			75
Mechanical endurance		Time	2000

JN17-12/40 earthing switch (ES-10/31.5) Outline and installation dimension

Copper terminal block

Copper terminal block

Hole location diagram

JN17-12/40 Indoor high voltage AC electrical earth switch

Specification	E	F	G	H	D
JN17-12/40-210	210	50	185	655	516
JN17-12/40-220	220	50	185	675	536
JN17-12/40-230	230	50	185	695	556
JN17-12/40-250	250	50	185	735	596
JN17-12/40-275	275	50	210	810	646

About us:

We are specialty on epoxy resin medium voltage and high voltage components, such as 12KV, 24 KV, 36KV and 40.5KV switchgear bushing, contactor box, Indoor high voltage AC electrical earth switch ,insulators, transducers. 630A, 1250A, 2500A, 3150A and 4000A contactor box, club contact, fix contact, arm contact and jaw contact. 630A and 1250A VS1 circuit breaker. 630A and 1250A ZN85-40.5 circuit breaker. 12KV and 24KV earth switch. KYN28A-12 and KYN61 high voltage switchgear components!

We will give you best quality and price!

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Attaining consumer satisfaction is our firm's purpose for good. We'll make wonderful efforts to produce new and top-quality merchandise, meet up with your special necessities and supply you with pre-sale, on-sale and after-sale products and services for China Wholesale Electric Earth Switch Suppliers – JN17-12/40 Indoor High Voltage AC Ground knife electronic earthing switch for MV switchgear – Timetric , The product will supply to all over the world, such as: azerbaijan, Provence, Uzbekistan, What is good price? We provide customers with factory price. In the premise of good quality, efficiency will have to be paid attention to and maintain appropriate low and healthy profits. What is a fast delivery? We make the delivery according to customers' requirements. Although delivery time depends on the order quantity and the complexity of it, we still try to supply products and solutions in time. Sincerely hope we could have long term business relationship.

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