1 Application range

This series of relays are used in automatic reclosing and backup power automatic switching devices of power supply lines at both ends to check the phase difference and amplitude difference between the voltage on the system side and the voltage on the parallel side.

2 Model definition

3 Working principle and main performance

3.1 Working principle

This relay performs synchronous detection on the phase angle and amplitude of the system side UX and the parallel side voltage UM. When |UX-UM|≤amplitude difference UB and the phase angle is also within the setting range, the relay outlet will act; |UX-UM|＞When the amplitude difference UB or the phase angle exceeds the setting value range, the relay will block the output action.

3.2 Main performance

3.2.1 This relay is mainly composed of integrated circuits. Stable performance, high reliability, high accuracy of action value, small discrete value, wide setting range, fast action and return speed, good return coefficient, small load on the transformer, vibration resistance, anti-interference and high insulation level.

3.2.2 The phase angle setting value is set by the dial switch on the relay panel, the setting is intuitive and convenient, the debugging is simple and convenient, and there is no need to adjust on site.

3.2.3 The relay has running and action indicator lights

3.2.4 The electrical and mechanical life of the relay is long.

3.2.5 High insulation withstand voltage level, large contact capacity and low contact resistance.

4 Technical conditions

4.1 Environmental reference conditions

Ambient temperature: 20±2℃ Relative humidity: 45%～75%

Atmospheric pressure: 86～106KPa 4.2 Normal operating conditions Ambient temperature: -10℃～+50℃ Environmental relative humidity: no more than 90% Atmospheric pressure: 86～110KPa Limit temperature during storage and transportation: -25℃～+70℃ The altitude of the place of use: no explosion hazard in the surrounding medium of the use environment not greater than 2500 meters; no corrosive gas; the concentration of the conductive dust contained should not reduce the insulation level below the allowable limit value.

Reliable power supply.

4.3 Characteristic parameters

4.4 Auxiliary power supply: 220VDC 110VDC 220VAC, allowable fluctuation range of power supply voltage: 0.8～1.15 times the rated voltage.

4.5 Action time and return time: test time under the condition of voltage difference UB of 0 and phase difference of ΔФZ/1.5, the action time is not more than 50mS, and the return time is not more than 20mS.

4.6 Maximum power consumption:

AC voltage circuit: each circuit of UM and UX is not more than 0.5VA in the case of 100V.

DC circuit: when the DC rated voltage is 220V, no more than 7W.

4.7 Maximum contact capacity:

Cut-off load capacity: DC 250V or less, τ=5ms, inductive load 50W, resistive load 150W;

AC below 250V, load 1200VA;

Allow long-term connection current: 5A.

4.8 AC voltage circuit overload capacity: continuous work under 1.2 times the rated voltage

4.9 Insulation resistance: Use an open-circuit voltage 500V megger to measure the insulation resistance between the exposed non-charged metal parts or shells of the relays connected to each conductive terminal and should not be less than 10MΩ.

4.10 Insulation withstand voltage: each lead-out terminal to the housing locking screw can withstand a power frequency voltage of 2000V, and the same group of contacts can withstand a power frequency voltage of 1000V, which lasts for one minute without breakdown.

4.11 Anti-interference performance: in line with the national GB6162-85 "Electrical Interference Test of Static Relays and Protection Devices" standard.

4.12 Electrical life: In the DC250V circuit, cut off the current τ=5ms, 50W, more than 104 times.

4.13 Mechanical life: The contact is 3 million times in no-load state.

5 Structure type (see the relay structure size diagram for details)

5.1 Embedded board rear wiring structure AK11, AP11 and protruding board front wiring AQ11 rear view wiring diagram (subject to company product samples)

5.2 JK-1/18 structure rear view wiring diagram (subject to company product samples)

6 Use

6.1 Before energizing the relay, confirm whether the voltage level and current value of the connected relay are consistent with the actual parameters, otherwise the relay may be damaged; check whether the relay is damaged during transportation and storage, and the relay screw fasteners should not be loose; There are damaged parts, please contact us to replace them. 6.2 Use the dial switch to set the action value according to the formula on the relay panel. The dial switch number should not exceed 900.

The phase angle setting range is 10°～178° Setting formula: Ф=180°-2[10□+□+0.1□]°

The voltage amplitude difference UB is proposed by the user when placing an order, and it is adjusted by the manufacturer before leaving the factory. It cannot be adjusted on site. By default, UB is 10V at 100V and 6V at 100/3 V.

7 Ordering instructions

When ordering, please specify the relay model, specification, quantity, structure, auxiliary power supply rated voltage, AC rated voltage, voltage amplitude difference UB and other requirements.