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- Contact：万金龙
- Phone：0574-82354293
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 &TRB series three-phase power monitors are suitable for protectors of all three-phase power supplies. It has strong versatility (h ~, TR (~), & H/H can be used), ultra-small size, and very beautiful appearance. It is a good companion for electrical appliances and motors that work normally and stably. It can be used as a replacement for various three-phase motors and other three-phase motors. Phase equipment (such as refrigeration compressors, water pumps, fans, air compressors, elevators, injection molding machines), and provides relay protection for three-phase voltage phase loss, reverse phase and unbalanced three-phase voltage of the input power supply. This protector only samples the power side of the three-phase power supply! Output relay protection.
1. Protection Features
.&Dynamic phase loss and static phase loss protection: refers to the occurrence of phase failure in any phase when the protected equipment is in operating or non-operating state. The form of the indicator light is: the red light is on, and priority is given
.& Wrong phase protection: a protective measure to prevent the wrong phase sequence of the three-phase AC power supply. Instant action. The form of the indicator light is: yellow light on
.& Voltage imbalance protection: refers to a voltage imbalance rate protection where three-phase voltage imbalance will affect the safe operation of the equipment. When the voltage imbalance rate is higher than %. The form of the indicator light is: the red light is on for lack of phase, with priority
.& Delay protection: When a fault occurs, the monitor delays action after ~ seconds, and the relay is released
.& Anti-lightning strike, anti-wave Surge function: built-in lightning protection and anti-surge protection circuit to protect your electrical equipment to the maximum extent
2. Performance characteristics
The monitor’s protection function is not affected by the current size of the line or load, and the impact current , the influence of unbalanced current and load properties. Able to work in full performance and in all climates for a long time. The power consumption is not greater than
. When used for motor protection, there are no requirements for the motor wiring method
. This product complies with GB/T., GB.:
. The radio interference characteristics of this product comply with GB. Measurement methods and allowable values
3. Working characteristics
. If the three-phase wiring is correct, the green light on the monitor will be on, and the relay will close. If the phase sequence is connected incorrectly, the yellow light on the monitor will be on. Just exchange any two of the three phases. phase, the monitor can identify the phase sequence and work normally. When the yellow light turns on after the protected equipment is working normally and the relay does not close, it should be regarded as a misconnection of the external line phase sequence. The monitor has an anti-misconnection protection function
.. &. When three phases are missing, The red light is on, the green light is not on, and the relay release voltage is restored when the voltage is normal. The green light is on, and the relay is closed. When connected to the three-phase AC voltage, , is a normally open contact, and is a normally closed contact. Directly use wires to connect
When the three-phase voltage is unbalanced >%, the red light is on, the relay releases the voltage and recovers to &t%, the green light is on, and the relay is closed
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| Company Name： |
Cixi Feinade Electrical Appliance Group |
Company type： |
个体经营 (制造商) |
| location： |
Zhejiang/Ningbo City |
Company Size： |
500-999人 |
| Registered capital： |
300M人民币 |
Registration year： |
1992 |
| Data certification： |
 |
| Security deposit： |
Already paid 0.00 元 |
| Operation model： |
制造商 |
| Business Scope： |
Motor protector, power protector |
| major business： |
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