Home » Switching Devices »Earthing Switch » JN15-24/31.5 24kV Medium Voltage ES Earthing Switch In Switchgear
  • JN15-24-275 ES
JN15-24-275 ES

JN15-24/31.5 24kV Medium Voltage ES Earthing Switch In Switchgear

Model: JN15-24/31.5-275

Description

JN15-24/31.5 indoor AC high voltage earthing switch is an advanced level product with high-tech parameters performance. After comprehensive evaluation, it conforms to GB1985 and IEC62271 standard, applies to power system of 24kV 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.
  • General
  • Technical Parameter

JN15-24/31.5 indoor AC high voltage earthing switch is an advanced level product with high-tech parameters performance. After comprehensive evaluation, it conforms to GB1985 and IEC62271 standard, applies to power system of 24kV 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.

Earthing 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.

JN15-24/31.5 Indoor AC high voltage earthing switch Product features

1. Indoor AC high voltage earthing switch is Advanced design and steady performance.

2. Simple structures, installation and adjustment.

3. Fast breaking and making capability.

4. Handsome appearance and delicate manufacture craft.

5. Usable and scientific apparatus, be operated on both sides(right and left).

Ambient condition

1. Altitude: ≤1000m;

2. Ambient temperature: -25°C~+40°C;

3. Earthquake intensity: ≤8 degree;

4. Relative humidity: daily average ≤ 95%, monthly average ≤ 90%

5. Pollution degree: II

LYE104 (JN15-24/31.5)

Item Unit Data
Rated voltage kV 24
Rated short-time withstand current kA 31.5
Rated short-circuit duration s 4
Rated short-circuit making current kA 80
Rated peak withstand current kA 80
Rated insulation level PF withstand voltage (1 min) kV Phase to earth

Phase to phase

65
Lightning impulse withstand voltage 125
Mechanical endurance Time 2000

Outline Dimension Drawing

earthing switch

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