Catalogue / SFRA, winding resistance & turns-ratio testers
Transformer turns ratio meter (TTR), Duo seriesSample
by Narmadaphase Test Instruments (Sample) · verified by BARREL
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Transformer turns ratio meter (TTR) from Narmadaphase, Duo series: 4 test current / range options between 10 A winding resistance and SFRA 20 Hz-2 MHz. Highlights: automatic tap changer sequence, temperature correction of resistance and measurement of three phases in one connection. Used by transformer acceptance testing, fault diagnosis after through-fault and post-transport check. Designed and tested to IEC 60076-18, IEEE C57.149 and IEC 60076-1. Lead time 3-4 weeks; delivers to East & North-East India. Sample listing: illustrative data for testing BARREL Shop, not a real offer.
- Brand
- Narmadaphase
- Model
- NAR-9D1 series
- Listing type
- Product
- Unit
- nos
- Minimum order
- 1 nos
- Lead time
- 3-4 weeks
- Warranty
- 24 months with calibration
- Standards
- IEC 60076-18, IEEE C57.149, IEC 60076-1
- Delivers to
- East & North-East India
- GST rate
- 18 %
- Country of origin
- India
- Packaging
- Wooden crate, seaworthy
- Delivery terms
- Door delivery in metro cities
- Returns
- Returns within 15 days if unused, in original packing
- Other terms
- Sample data for testing; not a real offer.
Variants
| Variant | Specifications | Min. order · lead time | Price, ex GST |
|---|---|---|---|
| Test current / range10 A winding resistanceNAR-9D1-01 | Test current / range: 10 A winding resistance | 1 nos · 3-4 weeks | for verified buyers |
| Test current / range40 A winding resistanceNAR-9D1-02 | Test current / range: 40 A winding resistance | 1 nos · 3-4 weeks | for verified buyers |
| Test current / rangeTTR 0.8-10000NAR-9D1-03 | Test current / range: TTR 0.8-10000 | 1 nos · 6-10 weeks | for verified buyers |
| Test current / rangeSFRA 20 Hz-2 MHzNAR-9D1-04 | Test current / range: SFRA 20 Hz-2 MHz | 1 nos · 6-10 weeks | for verified buyers |
Specifications
| Test current / range | 10 A winding resistance to SFRA 20 Hz-2 MHz (see variants) |
|---|---|
| Instrument | Turns ratio |
| Accuracy | 0.1%made to order: 0.5% |
| Frequency range | 20 Hz to 2 MHzmade to order: 10 Hz to 25 MHz |
| Dynamic range | Over 100 dB |
| Display | Colour TFT |
| Phase measurement | Included |
| Test voltage | Up to 100 Vmade to order: Up to 250 V |
| Interface | Ethernetmade to order: USB |
| Tap changer test | Dynamic current trace |
| Weight | 15 kgmade to order: 7 kg |