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Electronics => Repair => Topic started by: Mani556 on January 02, 2025, 08:39:36 am

Title: Replacement of a Chopper Transformer
Post by: Mani556 on January 02, 2025, 08:39:36 am

i am biomedical engineer in a hospital and i am repairing an EMG Machine, firstly it was not generation current for stimulation of muscles i opened the board and found that 1 chopper transforemer is faulty.
written on it is Cramer 1826 A2273.
i have checked online and also on the cramer website but i cannot find replacement for this chopper.
can anyone help me guide me in this regard please.
i shall be very thankful.

Title: Re: Replacement of a Chopper Transformer
Post by: squadchannel on January 02, 2025, 08:53:57 am

:wtf: Do not tamper with medical equipment. |O

Title: Re: Replacement of a Chopper Transformer
Post by: Xena E on January 02, 2025, 09:40:13 am

https://cramercoil.com/

Use the enquiry form, if they cant help, no one will.

Title: Re: Replacement of a Chopper Transformer
Post by: Mani556 on January 02, 2025, 09:43:24 am

i already did, but no reply

Title: Re: Replacement of a Chopper Transformer
Post by: Xena E on January 02, 2025, 11:07:22 am

If this item has value, consider getting it repaired/rewound.

Costly though.

Crammer will reply to most enquiries, eventually. In this instance though they will probably direct you to the manufacturer of the device if it was a bespoke design.

X

Title: Re: Replacement of a Chopper Transformer
Post by: inse on January 02, 2025, 11:20:00 am

How did you determine the transformer being at fault?
You may post a photo of the device as well.

Title: Re: Replacement of a Chopper Transformer
Post by: Mani556 on January 02, 2025, 11:40:10 am

it is not giving continuity on one side

Title: Re: Replacement of a Chopper Transformer
Post by: inse on January 02, 2025, 11:47:05 am

Probably the winding is broken at the pin, maybe it can be fixed if accessible