The HJTQ series static synchronous relay is used in the automatic reclosing circuit of the two-end power supply line to check the existence of the voltage on the line and the phase angle difference between the line and the voltage vector on the substation bus.
HJTQ series static synchronous relay
HJTQ static synchronous relay
HJTQ-903 static synchronous relay
Use
The HJTQ series synchronous check relay is used in the automatic reclosing circuit of the power supply lines at both ends to check the existence of the voltage on the line and the phase angle difference between the line and the voltage vector on the busbar of the substation.
2. Mounting structure rails and mounting 9 shells, please refer to the external dimensions for specific dimensions (can be used as front mounting method)
3. Product number
4. Main technical parameters
(1). Rated voltage: 220VAC, 110VAC, 100VAC
(2). Operation mode: only the input voltage amplitudes are greater than 80% of the rated voltage value + the two voltage amplitudes are less than 5% of the rated voltage + the two channels of voltage difference is less than the second group dial setting + The phase difference between the two voltages is less than the set value of the first group dial, the relay will only operate, and the synchronization indicator LED on the panel will light up, the amplitude LED will light, and the phase LED will light.
The relay will not operate if any one of the conditions is not met.
If only the input voltage amplitude is greater than 80% of the rated voltage + the voltage difference between the two voltages is less than 5% of the rated voltage, only the amplitude LED is illuminated;
If only the frequency difference between the two voltages is less than the set value of the second group dial + the phase difference between the two voltages is less than the set value of the first group dial, only the phase LED is illuminated.
(3). Contact capacity: It can connect 5A current for a long time. In the DC circuit with voltage less than 250VDC, it can disconnect the DC sense load of τ=5ms. In the AC circuit with voltage less than 250VAC, it can be disconnected. COS Ф = 0.4 250VA AC load.
(4). Contact life: The electrical life is not less than 100,000 times, and the mechanical life is not less than 1 million times.
(5). Power consumption: 9 shell is not more than 5W, E shell is not more than 4W
(6). Insulation resistance: Insulation resistance: Measure the insulation resistance between each exposed live terminal and the casing with a megohmmeter with an open circuit voltage of 500V. The insulation resistance is not less than 300MΩ.
(7). Medium strength: The power supply terminal and the outer casing can withstand the power frequency 2KV (effective value) 50Hz test voltage, and it will not break down for 1 minute without flashover.
5. Conditions of use
(1). Ambient temperature: -10 ° C -50 ° C;
(2). No conductive gas, no corrosive gas, no strong vibration;
(3). Working voltage: no more than 120% of rated voltage;
(4). Working position: Any
(5). Magnetic field strength: less than 0.5mT
(6). No rain or snow, anti-fog, dust-proof, sand-proof facilities
6. Wiring diagram
HJTQ series static synchronous relay
HJTQ static synchronous relay
HJTQ-903 static synchronous relay
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