The device integrates high-speed protection, comprehensive monitoring and flexible configuration capabilities, equipped with advanced communication protocols and a user-friendly interface. It not only meets the core requirements of primary or backup feeder protection, but can also be extended to diverse applications including busbar blocking/interlocking, high-speed arc flash fault detection, and distributed generation (DG) interconnection protection.It provides stable and reliable operation support for power systems, while reducing operation and maintenance costs and fault handling time through its modular design and intelligent functions.
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Core Technical Specifications
Protection Function Parameters
Overcurrent Protection
- Phase instantaneous overcurrent pickup range: 0.05–160.00 A
- Sensitive ground instantaneous overcurrent pickup range: 0.005–16.00 A
- Accuracy: ±1.5%
Voltage Protection
- Pickup range: 3–300 V
- Accuracy: ±1% (within 10–208 V range)
- Supports definite-time or inverse-time curve operation.
Frequency Protection
- Frequency range: 20–65 Hz
- Accuracy: ±0.05 Hz
- Rate of change of frequency (df/dt) protection range: 0.10–10.00 Hz/s
- Supports load-shedding schemes to enhance grid stability.
Other Core Protections
Monitoring & Metering Parameters
Metering Range
- Current accuracy: ±0.5% (within 0.1–10 A range)
- Voltage accuracy: ±1% (within 10–208 V range)
- Power accuracy: ±2.5%
Event & Waveform Recording
- Stores up to 512 rolling events with 1 ms timestamp accuracy.
- Supports up to 20 waveform records.
- Sampling rate programmable at 4/8/16/32/64 samples per cycle.
- Data format complies with IEEE C37.111-1999 COMTRADE standard.
Fault Location
- Positive-sequence impedance range: 0.01–250.00 Ω
- Zero-sequence impedance range: 0.01–750.00 Ω
- Line length setting: 0.0–2000.0 miles / km
- Typical location accuracy: 5%
Communication & Interface Parameters
Communication Protocols
I/O Configuration
- Slot F: 8 digital inputs + 8 digital outputs + 2 trip / close circuit supervision circuits
- Slot G: 16 digital inputs + 8 digital outputs
- Supports virtual I/O and CAN BUS remote I/O expansion, allowing I/O capacity to be doubled.
Power & Physical Specifications
- Auxiliary voltage: 110–250 Vdc or 120–230 Vac (HI version)
- Typical voltage dip ride‑through duration: 200 ms
- Mounting: 1/2 19" rack mount
- Ingress protection: IP52
- Operating temperature: -10 to +60 °C (-20 to +60 °C for copper communication port models)
Operation & Software Parameters
HMI Interface:Equipped with a basic display (Type B), supporting English, French, Spanish, Russian, Turkish and Chinese. Features fluorescent backlight and multi‑color programmable LED indicators for user‑friendly operation.
Software Support:Compatible with the EnerVista suite, including Launchpad configuration tool and Viewpoint Monitoring software. Supports document archiving, event analysis, waveform retrieval and other functions to simplify device commissioning, operation and maintenance.
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