MLJ1005B010H00C
GE Synchronism Check Relay MLJ1005B010H00C
GE
GE Synchronism Check Relay MLJ1005B010H00C
['Protection Relays', 'GE', 'MLJ Synchronism Check Relay'] Need GE MLJ1005B010H00C? Synchronism Check Relay for Generator and Net…
Specifications
| Brand | GE |
|---|---|
| Model Number | MLJ1005B010H00C |
| Official Product Name | MLJ1005 Digital Synchronism Check Relay |
| Applicable System | Generator and Network Synchronism / Substation Protection |
| Product Type | Synchronism Check Relay |
| Equivalent Standard | IEC 60255 (per distributor); design per GE MLJ manual |
| Product Status | Active / In Production (legacy MLJ series) |
| Auxiliary Power | 24 to 48 V DC, 3 W standby / 6 W tripped |
| Frequency Slip | 0.00 to 0.05 Hz in 0.01 Hz steps |
| Phase Angle | 0 to 360 deg in 1 deg steps |
| Closing Contacts | Max 440 V AC, 6 A, 4000 VA |
| Operating Temperature | -20 to +55 deg C |
| Dimensions | 18 rack, 4 units high (panel approx 82 x 122 x 60 mm) |
| Weight | 3 kg (6.6 lb) |
| Operating Frequency | 50 or 60 Hz |
Product Description
['Protection Relays', 'GE', 'MLJ Synchronism Check Relay']
It supports continuous and manual modes with undervoltage supervision and RS485/RS232 or fiber communication. The GE MLJ1005B010H00C is a digital synchronism check relay that measures bus and line voltage, frequency slip and phase angle to verify safe synchronism before connecting generators or network sections.
Basic Product Information
- Continuous and manual synchronism check modes
- Undervoltage supervision and DLDB/DLLB/LLDB functions
- RS485/RS232 or fiber optic communication
- Measures voltage difference, frequency slip and phase angle
Technical Specifications
Version & Model Difference
The MLJ1005 is the RS-485 communications model of the GE MLJ digital synchronism check relay family (MLJ1000 basic, MLJ1006/1007 with RS232/fiber). The suffix B010H00C denotes the H00C option set; the G00C variant (MLJ1005B010G00C) differs in option code within the same platform.
Application Scenarios
- Generator to network synchronism
- Reconnecting two parts of a network
- Manual or automatic breaker closing
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Frequently Asked Questions
What does the MLJ1005B010H00C do?
It checks synchronism by measuring voltage difference, frequency slip and phase angle between two AC sources and issues a close permit when all limits are met.
What communication does it support?
It supports RS485, RS232 and plastic or glass fiber optic communication for remote monitoring.
What are the operating modes?
It supports continuous mode for constant checking and manual mode triggered by an external digital input.
What auxiliary power is required?
It requires 24 to 48 V DC auxiliary power, consuming about 3 W standby and 6 W when tripped.
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