VPD-04R รีเลย์ตรวจจับความผิดปกติ

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VPD-04R
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VPD-04R รีเลย์ตรวจจับความผิดปกติ
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22/03/2020 01:17
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VPD-04R 230 volt ac under and overvoltage protection relay

Over and Under voltage % Adjustment

Delay time adjustment

1. Applications: Three- phase undervoltage and Overvlotage Protection

2. Gerenal:

Microprocessor controlled. Three or single phase relay is used in systems exposed to over or under voltage, such as command, control or compensation systems and protects devices such as condensers, motors, air conditioners and compressors. It is divided into sub- categories dependingon the voltage adjustment range, on or off start modes.

Un: 200V 50HZ Neutral

4 wires Star Connection Single Phase

Under Volt. 0.7x Un - 0.95x Un Connection Diagram

Over Volt. 1.05xUn - 1.3x Un

1C/O, 2000VA/8A (Cos=1)

Delay: 0.1s - 20s

3. Function Features:

-When three- phase voltage is normal, the 'Out' LED flash seconds. After the fault recovery time,

setting by potentiometer ' Ton', 'Out' LED turns on, and relay is closed.

When any line voltage is overvoltage, overvoltage failure indicator ' › Un' LED flash seconds

Reaching the fault delay time which setting by 'Toff ', relay disconnect; 'Out' LED turn off

and overvoltage failure indicator ' › Un' LED is turn on. If power recover to normal before the

fault delay time, then relay and 'Out' LED are not act, still closed; When voltage value is 1.3

times higher, without delay, relay immediately disconnect, overvoltage failure 'Un' LED turns on.

When any line voltage is undervoltage, undervoltage failure indicator ' › Un' LED flash seconds

Reaching the fault delay time which setting by 'Toff ', relay disconnect; 'Out' LED turn off and

undervoltage failure indicator ' › Un' LED is turn on. If power recover to normal before the fault

delay time, then relay and 'Out' LED are not act, still closed; When undervoltage value is 0.7 times

lower, without delay, relay immediately disconnect, undervoltage failure 'Un' LED turns on.

When the voltage recover from the fault status to normal, the 'Out' LED flash seconds, fault

recover time which is setting by 'Ton' has reached, then the relay close and output, 'Out' LED

turns on; If the overvoltage and undervoltage happen before the reaching of fault recovery time,

'Out' LED are not act, still disconnected; over voltage and under voltage indicator light on.

4. Technical Data:

Measurement and Supply Circuit
Supply Voltage (Un)	220, 230VAC 400 VAC
Supply Frequency	50HZ
Power Consumption (max.)	30VA/2W (50HZ.)
Measurement Method	True RMS
Settings
Over Voltage Setup (Umax.)	1,05...1,30x Un (% Scale) 231 ... 286 VAC 420... 520 VAC
Under Voltage Setup (Umin..)	0,7...0,95 x Un (% Scale) 154... 209 VAC 280... 380 VAC
Hysteresis (for Umax. and Umin.)	1%x Un
Delay-Off (Delay) Toff	0.1 ... 20 sec. (›1.3* Un or 0.7*Un, 0.1Sec)
Delay-On (Delay) Ton	0.1 ... 20 sec.
Voltage Adjustment Accuracy	±3%
Repetition Accuracy (Voltage)	±5%
Accuracy of the Set Times	±5%+100 msec.
Repetition Accuracy (Time)	±3%
Output
Output type	1 inverter, 8A, 250V, 2000VA (Cos= 1)
Electrical life	10^5
Mechanical life	10^7
Ambient Condition
Operation Temperature	-5℃...+55℃
Relative Humidity	<%90 ( without condensation)
Connection
Cable cross- section for terminal Screw-on force	4mm2 (12 AWG) standard rigid cable 6mm2 (10 AWG) solid conductor cable 2x2.5mm2 (14 AWG) solid conductor cable 0.5Nm (4.5 in.lbs)
Body
Installation	Inside the panel vertically or on the rail
Material type	Plastic consistent with UL94 VO
Protection class	IP 20 (for terminal), IP40 (front panel)
Dimensions	Type PK 28
Weight	100 gr.
Standard
EN-60255-6	Product standard
EN-61000-6-2	Immunity
EN-61000-6-3, EN-61000-6-4	Emission
Directives / Regulations to be followed
73/23/ECC	LVD
89/336 / ECC	EMC
Isolation
Isolation voltage (EN 60255-5)	400V
Isolation Coordination (EN 60255-5)	Exceeding Voltage category III Pollution degree 3
Instant Burst Voltage (EN 60255-5)	4kV 1.2 / 50 uS
Dielectric Resistance (EN 60255-5)	2kV AC 50 Hz. 1 minute.
Isolation Resistance (EN 60255-5)	›500 MOHM / 500 V DC