Product Overview
The ABB RET670 1MRK004816-AB is a comprehensive transformer protection intelligent electronic device (IED) designed for high-end power system applications. It provides fast and accurate protection, control, and monitoring for power transformers, including autotransformers, phase-shifting transformers, generator-transformer 件s, and shunt reactors.
Product Applications
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Two- and three-winding power transformers
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Autotransformers with complex breaker arrangements
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Generator-transformer blocks and phase-shifting transformers
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Special railway transformers and shunt reactors
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Transformer bays in HV substations and small busbar systems
Key Advantages
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Differential protection with high sensitivity and fast response
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Built-in CT ratio matching and vector group compensation
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支持s restricted earth fault (REF), high impedance REF, and overexcitation protection
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Integrated synchrocheck, synchronizing, and auto-reclose functions
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Full distance protection for backup applications
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Extensive communication support (IEC 61850, SPA, LON, DNP3, etc.)
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Advanced logic and automation with graphical configuration tool
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Disturbance and event recording for post-fault analysis
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Suitable for both greenfield installations and retr/its
Technical Specifications
| Parameter | Value |
|---|---|
| 型号 | RET670 1MRK004816-AB |
| Rated Current (Ir) | 1 A or 5 A |
| Rated Voltage (Ur) | 110 V AC |
| Frequency | 50/60 Hz ±5% |
| CT Inputs | Up to 6 three-phase current inputs |
| Communication Protocols | IEC 61850, LON, SPA, DNP3, IEC 60870-5-103 |
| Operating Temperature Range | -25°C to +55°C |
| Synchronization 支持 | GPS, IRIG-B, Binary input |
| HMI Display | LCD graphical interface |
| Dimensions (W x H x D) | 265.9 × 223.7 × 242.1 mm |
| 重量 | 10 kg |
常见问题 (FAQ)
Q1: What type / transformers can RET670 protect?
A1: RET670 is suitable for two- and three-winding transformers, autotransformers, phase-shifting transformers, shunt reactors, and generator-transformer 件s.
Q2: Does RET670 support high-speed tripping for internal faults?
A2: Yes, it includes fast differential protection and unrestrained high-set differential protection for high-speed fault clearing.
Q3: Can RET670 be used in a multi-breaker arrangement?
A3: Yes, it supports complex configurations with up to six CT inputs, suitable for multi-breaker and multi-terminal setups.
Q4: Is REF protection included in RET670?
A4: Yes, both low impedance and high impedance restricted earth fault (REF) protection are available.
Q5: Does RET670 support remote communication?
A5: Yes, it supports several communication protocols including IEC 61850, SPA, LON, DNP3, and IEC 60870-5-103.
Q6: Can it be used for backup distance protection?
A6: Yes, RET670 /fers distance protection functions with mho or quadrilateral characteristics for backup purposes.
Q7: What are the synchronization capabilities?
A7: RET670 includes synchrocheck, synchronizing, and dead-line check functions with support for asynchronous network synchronization.
Q8: What monitoring features are available?
A8: It has built-in disturbance and event recorders for up to 40 analog and 96 binary signals, as well as metering and supervision functions.
Q9: Is RET670 suitable for retr/itting existing substations?
A9: Yes, its modular design and communication flexibility make it ideal for both new installations and retr/it projects.
Q10: How is local operation managed?
A10: A graphical local human-machine interface (HMI) with LED indicators, function keys, and LCD is provided for on-site control and monitoring.
Related 型号s in the Same Series
| 型号 | 描述 | Dimensions (mm) | 重量 |
|---|---|---|---|
| RET670 1MRK005242 | Transformer protection IED (enhanced) | 265.9 × 336 × 242.1 | 11 kg |
| RET670 1MRK005204 | Three-winding transformer protection | 265.9 × 448.1 × 242.1 | 12 kg |
| RET650 | Compact transformer protection IED | 230 × 220 × 240 | 8.5 kg |
| REG670 | Generator protection variant | 265.9 × 223.7 × 242.1 | 10 kg |
| REM670 | Motor protection IED | 265.9 × 223.7 × 242.1 | 10 kg |
| REL670 | Line differential protection | 265.9 × 223.7 × 242.1 | 10 kg |
Popular ABB Protection Relay 型号s
| 型号 | Application | Dimensions (mm) | 重量 |
|---|---|---|---|
| REF615 | Feeder protection and control | 250 × 220 × 170 | 6.5 kg |
| RET615 | Transformer protection and control | 250 × 220 × 170 | 6.5 kg |
| REL650 | Line distance and differential protection | 265 × 220 × 240 | 9 kg |
| REG650 | Generator protection and control | 265 × 220 × 240 | 9 kg |
| REM615 | Motor protection and control | 250 × 220 × 170 | 6.5 kg |
| REX640 | Universal protection and control | 266 × 223 × 242 | 10 kg |
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