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Mã sản phẩm: EKL-SPA

Thông tin sơ lược:

The short circuit indicator type SFA is particularly suitable for compact-switchgears. It is used in medium voltage radial networks with one input.
The fault is indicated via LEDs. The indication is reset in the following ways:
a) manually
b) after an adjusted reset time.

General Description
This short circuit indicator needs a lithium battery for power supply. After the short circuit has occured, the indication will stay active until:
a) it is reset manually.
b) it resets after the adjusted time.
The required reset time can be adjusted on site. There are four reset times available. (By request, 8 times can be programmed.) The short circuit indicator is equipped with a setting for minimum impulse duration. The times 40 / 60 / 80 / 160 ms can be chosen; they are adjustable on site.
Every instrument has specific trip currents which are preadjusted.
Standard adjustments: 200 / 400 / 600 / 800 / 1000 A
Each of these trip currents can be adjusted on site via DIP-switches. (Other values for trip current are available for extra charge.) The remote reset can be adjusted either as a permanent contact or as a self-wiping contact.
Technical Data
trip current: short circuit: 200 / 400 / 600 / 800 / 1000 A (adjustable via DIP-switch)
precision: +/- 10 %
temperature range: -20° bis +70°C
reading instrument power request: 6µA, lithium battery 3.6 V
remote indication contact:

max. 230 V AC/50...150 W

contact type: selectable - permanent contact / self-wiping contact
(please advice when ordering)

reading instrument: panel-mounted acc. to DIN 40700, (WxHxD) 96 x 48 x 63 mm
material: polycarbonate
sensor: 1) specific to switchgear type
              2) cable - sensor (WxHxD) 38 x 38 x 26 mm


protection class: panel-mounted instrument - IP 46
sensor - IP 67

 

Thông tin sơ lược: The short circuit indicator type SFA is particularly suitable for compact-switchgears. It is used in medium voltage radial networks with one input.
The fault is indicated via LEDs. The indication is reset in the following ways:

a) manually
b) after an adjusted reset time.

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