JLY-14 type zero sequence voltage relayDetailed product description：

The JLY-14 zero sequence voltage relay is a static, transient, and AC voltage relay with a fast action time but a small contact capacity. It is generally used in conjunction with fast intermediate relays and is used for bus differential protection.
This relay is composed of an integrated circuit to form an execution circuit, which has the characteristics of high sensitivity, fast speed, and low power consumption. A small reed relay is used as an outlet relay; There are light-emitting diodes on the panel to display the operation status of the relay, and there is a normally open contact. The relay is set using a dial switch on the panel, which is intuitive and convenient.

Working Principle:
Under normal circumstances, the voltage level formed by the square wave is lower than the reference voltage level, which prevents the transistor from conducting. Therefore, the outlet relay does not operate. When the system malfunctions and its value exceeds the relay setting value, the voltage level formed by the square wave is higher than the reference voltage level, and the outlet relay operates.



Main technical parameters of JLY-14 zero sequence voltage relay:
4.1 Rated voltage: 110V, rated frequency 50Hz.
4.2 Setting range: 2-51.5V, with a step difference of 0.5V.
4.3 Action time: When the voltage transient changes from 0 to 2 times the set value, the action time of the relay shall not exceed 10ms.
4.4 Consistency of actions ≤ 3%.
4.5 Fixed value error ≤ 3%.
4.6 Temperature variation (every 1 ℃) ≤ 0.2%.
4.7 Environmental temperature: -10 ℃ to 50 ℃.
4.8 Power consumption: less than 2VA at rated voltage of 100V.
4.9 Return coefficient: not less than 0.9.
4.10 Auxiliary DC voltage: 220V or 110V.
4.11 DC power consumption: 220V<4W, 110V<2W.
4.12 Contact performance: In DC inductive circuits with a time constant of less than 40 ± 6ms, the contact breaking capacity is less than 0.1A at 220V.
4.13 Dielectric Strength Relay: All lead out terminals of the relay can withstand 2kV, 50Hz for 1 minute without breakdown or flashover.

Wiring diagram behind the relay:



Relay external dimensions and opening dimensions:
Refer to Figures 2 and 6 in the protruding modular insertion structure.

Ordering instructions:
6.1 Product model, name, structural form, etc.
6.2 Order Quantity.
6.3 Relay matching: such as base, socket, etc. (must be ordered separately).

JLY-14 type zero sequence voltage relay（No image available）