China Wholesale Earthing System Manufacturer – JN17-12/40 Indoor High Voltage AC Ground knife electronic earthing switch for MV switchgear – Timetric
China Wholesale Earthing System Manufacturer – 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
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Copper terminal block
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Hole location diagram
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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!
Product detail pictures:
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Assume full responsibility to meet all demands of our clients; achieve continuous advancements by promoting the growth of our clients; become the final permanent cooperative partner of clients and maximize the interests of clients for China Wholesale Earthing System Manufacturer – 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: Thailand, Latvia, Slovenia, After years of development, we have formed strong ability in new product development and strict quality control system to ensure excellent quality and service. With the support of many long term cooperated customers, our products are welcomed all over the world.
By Deborah from Sydney - 2018.08.12 12:27
This manufacturers not only respected our choice and requirements, but also gave us a lot of good suggestions, ultimately， we successfully completed the procurement tasks.
By Honorio from Singapore - 2017.08.15 12:36
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