Catalogue / AVRs & excitation systems
Excitation transformer and rectifier set, Flex 3 seriesSample
by Vayumark Pumps & Motors (Sample) · verified by BARREL
Price for verified buyers
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Excitation transformer and rectifier set from Vayumark, Flex 3 series: 5 alternator rating options between 500 kVA and 30 MVA. Design: under-excitation and over-excitation limiters, direct replacement for common legacy AVRs and digital AVR with PID tuning. Typically used for captive thermal plants, small and large hydro and alternator R&M. Designed and tested to IEEE 421.5, IEC 60034-16 and IS 4722. Lead time 4-8 weeks; delivers to North India. Sample listing: illustrative data for testing BARREL Shop, not a real offer.
- Brand
- Vayumark
- Model
- VAY-BF1 series
- Listing type
- Product
- Unit
- nos
- Minimum order
- 1 nos
- Lead time
- 4-8 weeks
- Warranty
- 24 months
- Standards
- IEEE 421.5, IEC 60034-16, IS 4722
- Delivers to
- North India
- GST rate
- 18 %
- Country of origin
- India
- Packaging
- As per item, transit-safe
- Delivery terms
- FOR site, freight included
- 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 |
|---|---|---|---|
| Alternator rating500 kVAVAY-BF1-01 | Alternator rating: 500 kVA | 1 nos · 4-8 weeks | for verified buyers |
| Alternator rating1 MVAVAY-BF1-02 | Alternator rating: 1 MVA | 1 nos · 4-8 weeks | for verified buyers |
| Alternator rating3 MVAVAY-BF1-03 | Alternator rating: 3 MVA | 1 nos · 4-8 weeks | for verified buyers |
| Alternator rating10 MVAVAY-BF1-04 | Alternator rating: 10 MVA | 1 nos · 12-16 weeks | for verified buyers |
| Alternator rating30 MVAVAY-BF1-05 | Alternator rating: 30 MVA | 1 nos · 12-16 weeks | for verified buyers |
Specifications
| Alternator rating | 500 kVA to 30 MVA (see variants) |
|---|---|
| Type | Digital AVR |
| Field current | 300 A |
| Field voltage | 63 Vmade to order: 110 V / 250 V / 500 V |
| Voltage regulation | +/-1%made to order: +/-0.5% |
| Sensing | 1-phasemade to order: 3-phase |
| Limiters | UEL, OEL, V/Hz |
| Parallel mode | Cross-current compensationmade to order: Droop |
| Communication | Modbus RTU |
| Input supply | Aux winding |
| Mounting | DIN railmade to order: Panel |