ARB5 Arc Flash Protection Relay
1 Application
The device is applicable to arc protection of middle-lower voltage bus.
2 Major function
2.1 Function of device protection
1) Arc protection (8 groups)
2) Failure protection (4 groups)
3) TA disconnection monitoring (4 groups)
4) Non-electricity protection
5) Device fault alarm
2.2 Main Measurements and Controlling Control Function
1)24-channel input Semaphore collection (adding input board can expand input quantity), except for some having special definition, other Semaphore can be defined by users. The input signals in this unit have two connection methods for option: one is active contact with external power supply; the other is electrical independent contact with the power supply provided by the device. Specific information shall see the schematic diagram behind. When ordering, usr shall provide description.
2)Measurement data
✓Basic data - current 1: IA1, IB1, IC1; current 2: IA2, IB2, IC2; current 3: IA3, IB3, IC3; current 4: IA4, IB4, IC4.
✓Harmonic data: current 1: IA1, IB1, IC1; current 2: IA2, IB2, IC2; current 3: IA3, IB3, IC3; current 4: 2-time harmonic wave, 3-time harmonic wave, 5-time harmonic wave respectively for IA4, IB4, IC4.
✓Symmetrical components - symmetrical component for current 1: I1_1, I2_1, 3I0_1; symmetrical component for current 2: I1_2, I2_2, 3I0_2; symmetrical component for current 3: I1_3, I2_3, 3I0_3; symmetrical component for current 4: I1_4, I2_4, 3I0_4.
3)Arc protection system is composed by main control unit ARB5-M and extension unit ARB5-E, and one main control unit can be configured with multiple extension units. Each extension unit can plug in multiple extensive plugins, each of which can collect 5-channel arc signal. One extension unit can plug in 6 extensive plugins. Those extension units mainly provide working power supply to the extensive plugins for arc signal analogue simulation etc.; four groups of three-phase current collection circuit on the main control unit can collect 12-channel simulation current signal; in addition, for arc collection plugins, each plugin can receive 30-channel arc signal. One main control unit can plug in 4-channel arc collection plugins, and 120-channel arc signals. An example of the scheme:
3 Technical parameters
3.1 Chassis structure size
Refer to Device Outline and Opening Size
3.2 Working environment
| Index name |
Unit |
Index |
Remark |
| Altitude |
m |
<2000 |
GB6162 |
| Ambient temperature |
ºC |
-10~55 |
GB6162 |
| Relative humidity |
% |
5~95 |
GB6162 |
| Atmospheric pressure |
kPa |
80~106 |
GB6162 |
3.3 Extreme ambient temperature for storage and transportation
Allowable ambient temperature for device storage, transportation and installation is within the range of -40~+70ºC.
3.4 Mechanical properties
Vibration response, vibration durability, shock response, shock durability, collision; severity is grade 1.
3.5 Rated electrical data
| Power (AC, DC) |
AC voltage |
DC voltage |
Frequency |
| 220V, 110V |
220V (phase voltage), 380V (line voltage) |
5A |
50/60Hz |
3.6 Rated power consumption
| Circuit |
AC Current Circuit |
AC Voltage Circuit |
Power Circuit |
| Power consumption |
<0.5VA/phase (rated 1A)
<1VA/phase (rated 5A) |
<0.5VA/phase (rated 1A) |
Normal < 15W
Trip < 20W |
3.7 Main property index
1) Realtime performance
| Content |
Switch Action Resolution |
Serial Communication |
| Parameter |
<2ms |
Band rate 2400-19200 |
2) Power supply
| Type |
Voltage |
Waveform |
Frequency
Frequency |
Power consumption |
Ripple |
Waveform distortion |
| DC (110V/220VDC) |
80%~115%Un |
DC |
|
<20W |
<5% |
|
| AC (220VAC) |
80%~115%Un |
AC |
50/60Hz |
<20W |
|
<5% |
3) Accuracy of measurement
| Content |
Condition |
Accuracy |
| Current |
0.05A~20In |
< ±5% |
4 Structure and installation
5.Definition schematic diagram of terminals for device backplane
6.Company Profile
3 Technical parameters
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