GE UR6UH High voltage dedicated microcomputer relay protection measurement and control device

GE UR6UH High voltage dedicated microcomputer relay protection measurement and control device

Specific Parameters​

Electrical Parameters​

Operating Power Supply Wide voltage input range 85VAC-265VAC or 110VDC-220VDC, rated operating voltage 220VAC/DC, supporting dual-channel redundant power supply​

Operating Current Typical operating current ≤6A (AC), ≤1.0A (DC); maximum operating current ≤10A (AC), ≤1.5A (DC)​

AC Sampling 16 high-precision analog input channels, supporting CT input (5A/1A) and VT input (100V/√3), sampling accuracy ±0.1%FS​

Synchronous Sampling Supporting IEC 61850-9-2 LE sampling, sampling rate 4000Hz, inter-channel synchronization error ≤1μs​

Protection Operation Time Differential protection operation time ≤10ms, distance protection Stage Ⅰ operation time ≤15ms, zero-sequence protection operation time ≤20ms​

Digital Input 48 passive digital input channels, supporting dry contact/wet contact signals, operating voltage 24VDC±10%​

Digital Output 24 high-power relay outputs, contact rating 250VAC/10A, 30VDC/10A, supporting multiple outputs of trip, close and signal alarm​

Communication Interfaces 4 Gigabit Ethernet ports (supporting IEC 61850 MMS/GOOSE/SV), 2 RS-485 serial ports, 1 USB 3.0 configuration port​

Fault Recording Built-in high-precision fault recording function, recording length ≥2000 cycles, sampling rate 4000Hz, supporting COMTRADE 1999 format export​

Certification Standards Compliant with GB/T 14598.3, GB/T 14598.10, IEC 60255-22-1, IEC 60255-22-2, IEC 61850-1/2/3/4/5/6/7/8/9 standards​

Mechanical Parameters​

Overall Dimensions 482.6mm×300mm×260mm (W×D×H), standard 19-inch rack-mounted dimensions, occupying 5U height​

Weight Approximately 12kg, all-metal modular structure with high mechanical strength, facilitating installation and maintenance​

Mounting Method 19-inch standard cabinet rack-mounted installation, front and rear double fixation, adapting to installation requirements of high-voltage substation control rooms​

Housing Material Industrial-grade high-strength cold-rolled steel plate housing with electrostatic spraying surface treatment, featuring Class Ⅰ electromagnetic shielding performance​

Connection Method Back plug-in terminal block connection (power supply, analog quantity, digital quantity) with screw-fastened wiring; front Ethernet/USB interfaces​

Protection Rating IP54, suitable for indoor environments of high-voltage substations, dustproof, splashproof and protection against foreign object intrusion​

Status Indication Equipped with 10-inch color touch screen, Power (green), Run (yellow), Protection Action (red), Alarm (orange), Communication (blue) LED indicators​

Environmental Parameters​

Operating Temperature -25℃ to 75℃, no performance derating over the entire temperature range​

Storage Temperature -40℃ to 85℃, meeting extreme storage and transportation requirements​

Relative Humidity 5% to 95% (short-term condensation allowed), adapting to high-humidity and high-altitude industrial scenarios​

Vibration Resistance Complies with IEC 60068-2-6 standard, 3g acceleration at 5Hz-150Hz frequency range​

Shock Resistance Complies with IEC 60068-2-27 standard, 20g acceleration (duration 11ms)​

EMC Compliance Complies with IEC 61000-4-2 (±15kV contact discharge), IEC 61000-4-3 (±20kV radiated immunity), IEC 61000-4-6 (20V/m common mode interference) standards​

Product Performance​

Extremely high protection accuracy, ±0.1%FS sampling accuracy + microsecond-level synchronization capability ensuring accuracy of protection actions in high-voltage scenarios​

High-voltage dedicated logic, integrating distance, differential, zero-sequence and other dedicated protection functions for high-voltage equipment, adapting to 220kV and above grade requirements​

Ultra-fast action response, millisecond-level protection operation time quickly isolating high-voltage faults and reducing power grid impact and equipment damage​

Excellent communication capability, multi-port Gigabit Ethernet + complete IEC 61850 support adapting to networking requirements of smart high-voltage substations​

Comprehensive redundant design, dual-channel power redundancy + hot backup of key components, system availability ≥99.99%​

Flexible and powerful configuration, large-size touch screen + professional configuration software supporting complex protection logic programming and setting management​

Accurate fault analysis, high sampling rate long-time recording + waveform analysis function providing complete data for high-voltage fault tracing​

Strong environmental adaptability, wide temperature and voltage range + high protection grade + strong EMC tolerating complex environments of high-voltage substations​