DSSR122 48990001-NK

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DSSR122 48990001-NK Double Busbar Protection Relay-KIMI

Part number：DSSR122 48990001-NK
Product Origin：Sweden
HS CODE：8537109021
Warehouse: Spot
Warranty： 365 days
Quality: Original module
Condition： New
Shipping method: Courier delivery

Contact person: LI MING
Contact number: +86 18059884790
WeChat：18059884790
E-mail: plc66@qq.com

Product Description

ABB DSSR122 48990001-NK | Double Busbar Protection Relay

Numerical protection relay for medium-voltage double busbar systems - fault detection, selective tripping, and SCADA integration for power distribution networks

1. Product Overview

The ABB DSSR122 48990001-NK is a dedicated numerical double busbar protection relay engineered for medium-voltage (MV) power distribution systems, providing fast, selective fault detection and isolation for double busbar configurations with bus couplers and circuit breakers. It integrates multiple protection functions including busbar differential protection, breaker failure protection, and intertrip logic, with a high-speed sampling rate of 1 kHz for real-time fault analysis and tripping within milliseconds. The relay supports flexible configuration via local HMI or PC-based **Control Builder** software, features extensive communication interfaces (Modbus RTU, IEC 61850 GOOSE/MMS for SCADA integration), and offers comprehensive event logging (up to 1000 events) for post-fault analysis. With an operating temperature range of -25°C to +70°C, IP54 front-panel protection, and compliance with IEC 61850, IEC 60255, and IEEE C37.90 standards, it is ideal for power substations, industrial plants, and renewable energy facilities requiring reliable busbar protection and grid stability.

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Key Specifications

• Model: DSSR122 (48990001-NK) | ABB Double Busbar Numerical Protection Relay

• Application: Medium-voltage double busbar systems (6–36 kV) with bus couplers/circuit breakers

• Protection Functions: Busbar differential protection; breaker failure protection; intertrip logic; CT supervision

• Sampling Rate: 1 kHz (1 ms per sample) for high-speed fault detection

• Inputs: 8×current inputs (CT ratio configurable 5–6000 A); 16×digital inputs; 8×relay outputs

• Communication: Modbus RTU (RS-485); IEC 61850 GOOSE/MMS; Ethernet for SCADA integration

• Configuration: Local HMI (240×160 LCD) + PC-based Control Builder software

• Power Supply: 100–240 V AC/DC or 24–48 V DC; Power Consumption: ≤20 W

• Environmental: -25°C to +70°C (-13°F to +158°F); Storage: -40°C to +85°C; IP54 front/IP20 rear

• Certifications: IEC 61850, IEC 60255, IEEE C37.90, CE, RoHS compliant

ABB DSSR122 48990001-NK(4).png

2. Core Features

• Comprehensive Busbar Protection: Integrates differential, breaker failure, and intertrip functions for full double busbar coverage

• High-Speed Tripping: 1 kHz sampling rate enables fault isolation within milliseconds to minimize system downtime

• IEC 61850 Compliance: Supports GOOSE messaging for fast peer-to-peer communication and MMS for SCADA data exchange

• Flexible Configuration: Local HMI for on-site adjustments or PC software for advanced function setup

• Extensive Event Logging: Stores up to 1000 events (fault waveforms, status changes) for post-fault analysis and troubleshooting

• CT Supervision: Built-in current transformer supervision detects CT saturation or open-circuit faults

• Rugged Design: IP54 front-panel protection against dust/water spray; wide temperature range for harsh industrial environments

• Plug-and-Play Expansion: Supports optional communication modules for protocol extension (e.g., DNP3.0)

ABB DSSR122 48990001-NK(5).png

YMGK Purchase Information

This section covers key details customers care about regarding purchasing, to support your global industrial product procurement needs.

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Sales Manager: KI MI

WeChat: 18059884790

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Email: plc66@qq.com

3. Typical Applications

• Power Substations: MV distribution substations with double busbar configurations for grid stability and reliability

• Industrial Plants: Steel mills, chemical factories, and manufacturing facilities with critical power supply requirements

• Renewable Energy: Solar/wind farm collection systems and battery energy storage (BESS) power distribution buses

• Commercial Buildings: Data centers and high-rise buildings with redundant busbar systems for uninterrupted power

• Railway Systems: Traction power substations for reliable railway electrification network protection

4. Installation & Maintenance

Installation: Rack-mount in MV switchgear cabinets; connect CT inputs and circuit breaker trip signals; wire communication ports (Ethernet/RS-485); apply power and configure via HMI/Control Builder software.

Maintenance: Weekly: Check HMI status and LED indicators; Monthly: Verify communication link with SCADA; Annual: Test protection functions via secondary injection; review event logs and update firmware.

Safety Notes: Perform maintenance only on de-energized equipment; ensure CT secondary circuits are short-circuited before disconnection; validate protection settings after configuration changes.

Technical Document | ABB DSSR122 48990001-NK | Double Busbar Protection Relay for Medium-Voltage Power Systems

Global Inventory: 121 shared inventories worldwide, enabling direct procurement from overseas warehouses for faster delivery.
Pricing & After-Sales: Competitive prices plus reliable after-sales warranty services.
Customer Coverage: Serving clients across United States, Germany, Japan, South Korea, United Kingdom, France, Italy, Canada, Brazil, India, Australia, Russia, Spain, Netherlands, Switzerland, Sweden, Belgium, Austria, and Turkey.
Product Quality: All items are brand new and original. Spare parts include a 1-year warranty, and all products are tested and certified.
Discounts: Contact us for bulk-order discounts. We also offer further price adjustments if you receive lower quotes for identical products from other suppliers.

For additional inquiries, reach out to us at any time.

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