· Overview

JN2-40.5 type indoor HV earthing switch is equivalent with IEC129-84 "disconnectors and earthing switches" and IEC694-84 "high-voltage switchgear and control equipment of the common terms", according to GB1985-89 "high voltage isolation and earthing switches "in the section on grounding switch designed for indoor high-voltage electrical appliances.
JN2-40.5-type earthing switch for 35KV and below the three-phase AC 50Hz power system, and a voltage monitoring device, and its structure simple and reliable operation of small, easy installation, usually for JYN1-40.5 and GFC-40.5 Switch cabinet can also be put into use alone.

· Model:

· Structure and working principle

The grounding switch operating system designed to spring energy storage form, with a fast closing capability, but the operating rod when the actuator rod driven closing ground switch on the gear shift in the direction the spindle to the closing, the spring is compressed energy storage, to a certain position (spindle began to move from the lower middle after more than 30o) spring energy release, fast closing. When this, the closing speed and the operator’s actions no dependencies, this structure ensures that the grounding switch closing with the required capacity.
Similarly, in the sub-gate, the operating rod driven grounding switch gear, sub-gates along the direction of rotation, a spring energy storage device, when the spindle rotation angle more than 45o, the spring energy storage device to release energy, so that earthing switch closing.
The grounding switch according to the requirements of users can be charged with different types of high-voltage display device, the supporting pillar insulator, optional epoxy resin insulators, or DXN-type passive live shows device. about the contents of the display device can be found in high-voltage electric display device manual.

· Environmental conditions

· Ambient air temperature: up to +40 ℃; limit the general area of -10 ℃. Note: Allow at -30 ℃ during storage and transportation.
· Altitude not exceeding 1000m
· Relative humidity: daily average of less more than 95%, the monthly average of less than 90%.
· earthquake intensity does not exceed 8 degrees
· no fire, explosion, heavy pollution, chemical corrosion and severe vibration. Note: If the product use conditions beyond the above requirements, in consultation with the manufacturer by the user.

· Technical parameters <% @ LANGUAGE = "VBSCRIPT" CODEPAGE = "936 "%>

· Outline and installation size