DY-26C, DY-26D Electromagnetic Voltage Relays - Yongshang

1、 DY-20C and D series relays are used for:

DY-20C and DY-20D series voltage relays (hereinafter referred to as relays) are used as starting elements in relay protection circuits for voltage rise (overvoltage protection) or voltage drop (low-voltage lockout) of generators, transformers, and transmission lines.

2、 DY-20C, D seriesMain technical parameters of relays:

(1) The combination forms of the contact system are shown in Table 1.

(2) Action time: When the overvoltage relay is at 1.2 times the set value, the action time shall not exceed 0.12s; When the low voltage relay is at 0.5 times the set value, the action time shall not exceed 0.15s;

(3) Contact capacity: In a DC inductive load circuit with a voltage not exceeding 250V, a current not exceeding 5A, and a time constant of 5 ± 0.75ms, the output contact of the product has a breaking capacity of 50W. The output contact can reliably operate and return 5 × 104 times under the specified load conditions. The long-term allowable current for the output contact is 5A.

(4) Dielectric strength: The conductive terminals of the product are connected together and can withstand an AC voltage of 2000V (effective value) 50Hz for 1 minute between exposed non charged metal parts or shells without insulation breakdown or flashover phenomenon.

(5) Contact form: 1 dynamic closing, 1 dynamic breaking, 1 dynamic closing and 1 dynamic breaking, 2 dynamic closing, 2 dynamic breaking.

DY-26C, DY-26D Electromagnetic Voltage Relays - Yongshang