Me kana Polarity Test of Transformer?

Mai suna aiki na Polarity Test na Transformer?

Takardunin Polarity Test

Aikin polarity test na transformer shine haddadin tsarin alama cikin bayan gano masu sauran transformers daidai.

Dot Convention

Dot convention yana nuna alamar windings a cikin transformer, tana nuna yadda voltage ta shafi.

• Idan karamin yanayi ya zama a terminali da dot, akwai voltage mai kyau a terminali da dot a winding na biyu.

• Idan karamin yanayi ya fito daga terminali da dot, akwai voltage mai hasu a terminali da dot a winding na biyu.

Additive Polarity

A additive polarity, voltage a bayan primary da secondary windings ta add up, amma ake yi a small transformers.

Subtractive Polarity

A subtractive polarity, voltage a bayan primary da secondary windings ta difference, amma ake yi a large transformers.

Tsarin Aiki

• Sambuta circuit kamar yadda aka nuna a wani voltmeter (Va) across primary winding da wani voltmeter (Vb) across the secondary winding.

• Idan an samu, rubuta ratings na transformer da turn ratio.

• Sambuta voltmeter (Vc) bayan primary da secondary windings.

• Saka wani voltage zuwa primary side.

• Daga value a voltmeter (Vc), za a iya neman cewa ita ce additive ko subtractive polarity.

Idan additive polarity – Vc yana nuna sum of Va and Vb.

Idan subtractive polarity – Vc yana nuna difference between Va and Vb.

Koyarwa

Yara da max. measuring the voltage of voltmeter Vc yana da yiwuwar sum of Va (Primary winding) and Vb (Secondary winding) idan during the additive polarity, sum of Va and Vb comes across it.

Bayani

Idan additive polarity yana bukata amma muna subtractive, za a iya gyara tare da keeping one winding as is and reversing the other winding’s connections. Wannan same applies if we need subtractive polarity but have additive.