TOYOZUMI DENGENKIKI CD220-15S Power Transformer CD Series 1.5KVA

Frequently Asked Questions: TOYOZUMI DENGENKIKI CD220-15S 1.5KVA CD Series Transformer:

1/ What is the CD220-15S transformer?

It’s a single-phase isolation transformer in the CD series, rated at 1.5KVA. It converts 220V input to 100V output, ideal for powering Japanese electrical devices overseas.

2/ Who manufactures this model?

TOYOZUMI DENGENKIKI, a Japanese company renowned for robust, high-quality power transformers.

3/ Typical Applications

- Powering Japanese appliances (rice cookers, fans, audio equipment) in countries with 220V mains.

- Supplying stable, isolated power to sensitive electronics: computers, lab instruments, communication gear.

- Use in light-industrial machinery requiring 100V input.

4/  How should I wire the transformer?

- Connect the primary (220V) input wires to the designated L and N terminals.

- Connect the secondary (100V) output wires to the load.

- Secure the green/yellow earth wire firmly to the transformer’s metal case.

5/ Where is the best mounting location?

- A well-ventilated, dry area away from direct sunlight.

- Avoid corrosive chemicals and excessive dust buildup.

6/ Can I run continuous full-load?

Yes. It’s designed for continuous operation at its 1.5KVA rating. Avoid exceeding 110% of rated load for prolonged periods.

7/ What protection is recommended?

Install an appropriately sized circuit breaker or fuse on the primary side rated for slightly above 1.5KVA to guard against overloads and short circuits.

8/ How often should I inspect the transformer?

- Visual check every 6 months for dust, corrosion, or loose connections.

- Electrical test (winding resistance, insulation) annually.

9/ What cleaning method is safe?

Use dry compressed air or a soft brush. Never apply liquid cleaners or solvents.

10/ The transformer is running hot - what could be wrong?

- Verify the load; reduce if it exceeds rating.

- Ensure proper ventilation; clear any obstructions around the unit.

11/ No output voltage - what should I check?

- Confirm the primary supply is present (220V).

- Inspect fuses/breakers on both primary and secondary sides.

- Measure winding continuity to rule out an open circuit.

12/ How can I order the CD220-15S?

13/ What is the lead time for delivery?

Please contact QTE Technologies (qtetech.com/en)

14/ What warranty does it carry?

The warranty period is 12 months from the date QTE TECHNOLOGIES dispatches the goods: https://qtetech.com/en/warranty-policy

15/ How do I obtain technical support?

Please contact QTE Technologies (qtetech.com/en)