3.
3
3.3-02
LOCKS
๑ᆩ! 304! ୟഗ้Ljෙ߲ୟഗዐᆶᅃ߲Բଷྔଇ߲
ਏᆶ߸ߛᆫံपLjᅺُᆫံୟഗتᇀ!
PODŽࢇቄDžጒༀ
้Ljഄ!3!߲ୟഗՂႷتᇀ!PGGDŽݴቄDžጒༀăᆫံ
ୟഗتᇀ!PGGDŽݴቄDžጒༀ้Ljഄ!3!߲ୟഗՂႷتᇀ!
PODŽࢇቄDžጒༀăኄཚᆩᇀዷۉୟ၎ࢻথڦದዃă
2 of 3 breaker interlock with priority (Type D)
With the 2 of 3 interlock in opera
Ɵ
on, one of the three breakers
has priority over both the others, hence when the priority
breaker is ON the other 2 MUST be OFF. Also entailing that
when the priority breaker is OFF the other 2 breaker can be
turned ON. This is typically used for a main
Ɵ
e- main
arrangement.
304!ୟഗDŽਏᆶᆫံपDžDŽE!႙Dž
G
B1
B2
G
B1
B3
B2
B1
B2
B3
B1
B2
B3
Priority
B1
B2
0
0
I
0
0
I
B1
B2
B3
0
0
0
I
0
0
0
I
0
0
0
I
B1
B2
B3
0
0
0
I
0
0
0
I
0
0
0
I
I
0
I
0
I
I
I
I
0
B1
B2
B3
0
0
0
I
0
0
0
I
0
0
0
I
I
0
I
Type A
A
႙
Type B
B
႙
Type C
C
႙
Type D
D
႙
203!ୟഗ
3!߲ୟഗዐኻీᆶ!2!߲ᅜԿࢇ
1 of 2 Breaker
Only 1 from 2 breaker can be closed.
204!ୟഗ
4!߲ۉᇸDŽ݀ۉऐईՎუഗDžྺཞᅃ߲జ၍ઍۉLjڍփీ
ႜೝႜሏႜă
4!߲ୟഗዐኻీᆶ!2!߲ᅜԿࢇă
2!pg!4!Csfblfs
4!qpxfs!tvqqmjft!)hfofsbups!ps!usbotgpsnfst!gffejoh!
uif!tbnf!cvtcbs-
cvu!qbsbmmfm!pqfsbujpo!jt!qsfwfoufe/
Pomz!2!gspn!4!csfblfs!dbo!cf!dmptfe/
304!ୟഗ
3!߲జ၍ݴᆯڇ߲ՎუഗໃۉDŽC4!ԿࢇDžLj
//!ईᆯଇ߲ՎუഗໃۉDŽC4!ਸDž
4!߲ୟഗዐඪᅪ!2!߲ۼԿࢇă
4!߲ୟഗዐඪᅪ!3!߲ۼԿࢇă
3!pg!4!Csfblfs
3!cvt!tfdujpot!dbo!cf!qpxfsfe!cz!b!tjohmf!
usbotgpsnfs!)C4!dmptfe*-
//ps!cz!cpui!usbotgpsnfst!)C4!pqfo*
Boz!2!gspn!4!csfblfst!dbo!cf!dmptfe/
Boz!3!gspn!4!csfblfst!dbo!cf!dmptfe/
304!ୟഗDŽਏᆶᆫံपDž
3!߲ኟۉᇸ࿄ೝႜยዃă
2!߲ۉᇸᅜྺᆫံۉୟ༵ࠃޤዺă
ୟഗ!C2!ࢅ0ई!C3!ኻీሞ!C4!ਸ้Կࢇă
ୟഗ!C4!ኻీሞ!C2!ࢅ!C3!ਸ้Կࢇă
3!pg!4!Csfblfs!xjui!Qsjpsjuz
3!opsnbm!qpxfs!tvqqmz!opu!tfu!jo!qbsbmmfm/
2!qpxfs!tvqqmz!nbz!bttjtu!uif!qsjpsjuz!djsdvju/
Csfblfs!C2!boe0ps!C3!dbo!cf!dmptfe!pomz!jg!C4!jt!pqfo/
Csfblfs!C4!dbo!pomz!cf!dmptfe!jg!C2!boe!C3!bsf!cpui!pqfo/
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