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Voltage relay DY-20 series

Voltage relay DY-20 series



Use

Dy - 20C, 20d series voltage relay (hereinafter referred to as the relay) for generator, transformer and transmission line voltage rise (overvoltage protection) or the voltage reduced (low voltage blocking) relay protection circuit.


The main technical parameters
Value: Over voltage relay at 1.2 times the setting value, the action time is not more than 0.15s;
Low voltage relay at 0.5 times the setting value, the action time is not more than 0.15s;
Contact form: 1, 1, 1 and 1 break break, 2, break 2.
Contact capacity: No more than 250V voltage, the electric current does not exceed 5a, the time constant for 5 + 0.75ms DC sense circuit load, product output contact breaking capacity is 50W. The output contacts in the above specified load conditions, the product can act reliably and return 5 * 104 times. The output current is 5A connected to allow long-term contact.
Medium strength: Products of each conductive terminal even together, on the exposed uncharged metal part or between the shell, bear 2000V (RMS) 50Hz AC voltage which lasted 1 minute test without dielectric breakdown or flashover phenomenon.
Name
Type No.

Tuning

voltage

Rated voltage
The long-term permissible voltage

Voltage regulation

Fixed range

Operating voltage
The minimum power consumption of the setting value

Return

Coefficient

Coil

Parallel connection

Coil

Series connection

Coil

Parallel connection

Coil

Series connection

Coil

Parallel connection

Coil

Series connection

Over voltage
DY-21C、D
DY-22C、D
DY-23C、D
DY-24C、D
DY-25C、D
60
30
60
35
70
15~60
15~30
30~60
1
0.8
200
100
200
110
220
50~200
50~100
100~200
400
200
400
220
440
100~400
100~200
200~400
Low voltage
DY-26C、D
DY-27C、D
DY-28C、D
DY-29C、D
48
30
60
35
70
12~48
12~24
24~48
1.25
160
100
200
110
220
40~160
40~80
80~160
320
200
400
220
440
80~320
80~160
160~320
Over voltage
DY-21C~25C/60C
DY-21D~25D/60C
60
100
200
110
220
15~60
15~30
30~60
2.5
0.8


Internal wiring


Note:: (low voltage relay) of various specifications of non rectifier type (DY - 20C) and rectification type (DY - 20D),as the user selected.

The shape and size of holes



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