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intelligent
Auto Transfer Switch

Auto Transfer Switch

ƵƚŽ dƌĂŶƐĨĞƌ ^ǁŝƚĐŚ ; d^Ϳ ŝƚ͛Ɛ ƵƐĞĚ ƚŽ ŵĂŬĞ of them divided to:
ĂƵƚŽŵĂƟĐ ĐŽŶǀĞƌƟŶŐ ďĞƚǁĞĞŶ ƚŚĞ ŵĂŝŶ One for working the electrical generator.
electrical feeding to the feeding by elec- KƚŚĞƌ ĨŽƌ ĐŽŶŶĞĐƟŶŐ ƚŚĞ ŵĂŝŶ ƉŽǁĞƌ͘
trical generator , which used in the three The other two divided to:
phase generators and can used in single One for stopping the electrical generator.
phase generator . KƚŚĞƌ ĨŽƌ ĚŝƐĐŽŶŶĞĐƟŶŐ ŵĂŝŶ ƉŽǁĞƌ͘
The way of work: tĞ ĐĂŶ ƵƐĞ ƐĞůĞĐƚŽƌ ǁŝƚŚ ϯ ƉŽƐŝƟŽŶƐ ŝŶƐƚĞĂĚ

It’s considering selector which can choose ŽĨ ϰ ďƵƐŚ ďƵƩŽŶ͕ ƚŚĞ ĮƌƐƚ ƚŽ ĐŽŶŶĞĐƚ ƚŚĞ
the system by it if it will be manual or auto- ŐĞŶĞƌĂƚŽƌ ĂŶĚ ƐƚĂƌƟŶŐ ŝƚƐ ǁŽƌŬ ĂŶĚ ƚŚĞ ƐĞĐ-
ŵĂƟĐ ƐLJƐƚĞŵ͘ ond to connect the electrical generator, the
The manual system: least to disconnect the main power and the
ŽŶƐŝƐƚ ŽĨ ĨŽƵƌ ďƵƐŚ ďƵƩŽŶ ƚǁŽ electrical generator together.

The automaƟc sLJstem:

The conversion is done auto-
ŵĂƟĐ ͕ ŝŶ ŶŽƌŵĂů ĐĂƐĞ ƚŚĞ ůŽĂĚƐ
feeding by the main power and
in case of main power be outage
or irregular it , disconnect it and
connect the electrical generator
to do the feeding process for
loads , the electrical generator
ĐŽŶŶĞĐƚĞĚ ĂŌĞƌ ƐŽŵĞ ƉĞƌŝŽĚ
ƟŵĞ ĨƌŽŵ ĚŝƐĐŽŶŶĞĐƟŶŐ ƚŚĞ
main power .

The control circuit of ATS consists of:

2 contactor in the same type and current with ĐŚĂƌŐĞƌ ĂŶĚ ƐŚŽƵůĚ ŚĂƐ ƉƌŽƚĞĐƟŽŶ ĨƌŽŵ ƚŚĞ ŽǀĞƌ
mechanical safety in it. current
Ϯ D ƚŽ ƉƌŽƚĞĐƚ ƚŚĞ ůŽĂĚƐ͘ 2 relay.
ϯ ƟŵĞƌƐ ŽŶ ĚĞůĂLJ͘ 4 indicators lamp 2 green and other red.
Over and under voltage relay, phase sequence, ^ĞůĞĐƚŽƌ ǁŝƚŚ ϯ ƉŽƐŝƟŽŶƐ ;Žī͕ ŵĂŶƵĂů͕ ĂƵƚŽ-
failure relay. ŵĂƟĐͿ͘
ƵƚŽŵĂƟĐ ďĂƩĞƌLJ ĐŚĂƌŐĞƌ ƚŽ ĐŚĂƌŐĞ ƚŚĞ ďĂƩĞƌLJ Ϯ E ďƵƐŚ ďƵƩŽŶ ĂŶĚ ŽƚŚĞƌ EK͘
and must be its current charging suitable for the ĚĚŝƟŽŶ ƚŽ ƐŽŵĞ ŽƚŚĞƌ ĐŽŵƉŽŶĞŶƚ͘

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