HJY series digital AC voltage relay
HJY series digital AC voltage relay This series of voltage relays is a transient action characteristic, used for relay protection of generators, transformers and transmission lines.
HJY series digital AC voltage relay
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Use
This series of voltage relays is a transient action characteristic and is used for relay protection of generators, transformers and transmission lines.
Centering as a blocking actuating element for over or under pressure.
2. Installation structure
Rail mounting 9 and rail mounting E are two structural methods. Please refer to the external dimensions for specific dimensions.
3. Features
(1). Use the dial setting;
(2). The setting range is 10~450V, and the step is 1V.
(3).50Hz, 60Hz universal
4. Product model
5. Technical parameters
(1). Rated voltage, setting range, return factor, auxiliary power supply
name | model | Rated voltage (VAC) | Long-term allowable voltage (VAC) | Setting range (VAC) | Level difference (V) | Return coefficient | Auxiliary power |
Overvoltage Relay | HJY-â–¡2A/â–¡ HJ-â–¡2B/â–¡ | 200 | 242 | 10-242 | 1 | 0.9~0.95 | 85-265V AC and DC universal |
400 | 450 | 50-450 | 1 | ||||
Undervoltage Relay | HJY-â–¡1A/â–¡â–¡ HJY-â–¡1B/â–¡â–¡ | 200 | 242 | 10-242 | 1 | 1.05~1.1 | |
400 | 450 | 50-450 | 1 |
(2). Operating frequency: 50Hz sine wave.
(3). Action time: When the overvoltage relay applies more than 1.1 times the setting value, the action time is no more than 35ms; when the application is greater than 2 times, the action time is not more than 30ms; when the undervoltage relay voltage drops to 0.5 times the set value, The action time is not more than 35ms; the action time is not more than 30ms when the voltage suddenly drops to 0V.
(4). Return time: The overvoltage relay suddenly drops from the input 1.1 times the set voltage to 0.5 times the set voltage, and the return time is no more than 35ms; the undervoltage relay suddenly rises from the input 0.9 times the set voltage to 1.5 times the set voltage, and the return time is not More than 30ms.
(5). Setting error: no more than 2% (or 1V), the same relay is at the same full voltage, the action consistency is not more than 1%.
(6). Power consumption: The overall power consumption is less than 5W; auxiliary power supply: 85~260V, AC and DC universal.
(7). Contact capacity: 5A can be switched on for a long time, 250VDC can be disconnected τ=5ms 50W DC sense load; 250VA COSΦ=0.4 250VA AC load can be disconnected.
(8). Insulation resistance: Between the relay case and the exposed live terminal, measured with a megohmmeter with an open circuit voltage of 500V, the insulation resistance is greater than 300MΩ.
(9). Medium strength: between the relay case and the exposed live terminal, it can withstand 2KV (effective value) 50Hz test voltage, no breakdown or flashover phenomenon for 1 minute.
6. Conditions of use
(1). Ambient temperature: -15 ° C ~ 55 ° C;
(2). No conductive gas, no corrosive gas, no strong vibration;
(3). Working position: arbitrary;
(4). Magnetic field strength: less than 0.5mT;
(5). There must be no rain or snow, and there are anti-fog, dust-proof and sand-proof facilities.
7. Wiring diagram
8. Description of the operating characteristics of the undervoltage relay:
(1). For an undervoltage relay whose operating characteristics are electromagnetic, if the voltage U~ of the relay is less than the setting value of the dial, the outlet intermediate relay does not operate, and the contact state is consistent with the above figure; ~ If the dial setting value is greater than 1.05~1.1 times, the outlet intermediate relay will be activated and the contact state will change. This action characteristic is the same as that of Xuji's electromagnetic undervoltage relay.
(2). For an undervoltage relay whose operating characteristic is static, if the voltage U~ of the relay is less than the setting value of the dial, the outlet intermediate relay will immediately act. If the voltage U~ of the accessor is greater than 1.05~1.1 times the setting value of the dial, the outlet intermediate relay does not operate, and the contact state is consistent with the upper wiring diagram. The operating characteristics are different from those of Xu Ji's electromagnetic undervoltage relay.
HJY digital AC voltage relay
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