Busbar protection relay, Smart seriesSample
by Dwaraka Power Controls (Sample) · verified by BARREL
Price for verified buyers
Ordered and invoiced through BARREL — one contract, one GST invoice.
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Dwaraka Smart busbar protection relay, offered in 3 function options from Transformer differential to Busbar differential. Highlights: breaker failure and trip circuit supervision, front USB and rear Ethernet ports and self-supervision with watchdog. Used by substation feeders, transformer bays and motor control centres. Designed and tested to IEC 60255, IEC 61850 and IS 3231. Lead time 3-6 weeks; delivers to All India and export (SAARC, Middle East, Africa). Sample listing: illustrative data for testing BARREL Shop, not a real offer.
- Brand
- Dwaraka
- Model
- DWA-9E4 series
- Listing type
- Product
- Unit
- nos
- Minimum order
- 5 nos
- Lead time
- 3-6 weeks
- Warranty
- 24 months
- Standards
- IEC 60255, IEC 61850, IS 3231
- Delivers to
- All India and export (SAARC, Middle East, Africa)
- GST rate
- 18 %
- Country of origin
- India
- Packaging
- Wooden crate, seaworthy
- Delivery terms
- FOR site, freight included
- Returns
- No returns on made-to-order items
- Other terms
- Sample data for testing; not a real offer.
Variants
| Variant | Specifications | Min. order · lead time | Price, ex GST |
|---|---|---|---|
| FunctionTransformer differentialDWA-9E4-01 | Function: Transformer differential | 5 nos · 3-6 weeks | for verified buyers |
| FunctionLine distanceDWA-9E4-02 | Function: Line distance | 5 nos · 3-6 weeks | for verified buyers |
| FunctionBusbar differentialDWA-9E4-03 | Function: Busbar differential | 5 nos · 3-6 weeks | for verified buyers |
Specifications
| Function | Transformer differential to Busbar differential (see variants) |
|---|---|
| Aux supply | 24-250 V DC |
| CT input | 1/5 A selectable |
| VT input | 63.5 V |
| Binary inputs | 16 |
| Output relays | 12 |
| Communication | IEC 61850 Ed 2 |
| Display | LCD with keypadmade to order: Graphic LCD |
| Disturbance recorder | Up to 20 records |
| Accuracy class | Class 0.5 metering |
| Case | Flush mountmade to order: Draw-out |
| Time sync | PTP |
| Cyber-security | Role-based access |