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Jiangsu Acrel Electrical Manufacturing Co., LTD.
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tel:
+86 18761509710 -
email:
besty.chen@email.acrel.cn
AM4 Series 35kV Medium Voltage Protection Relay
● A complete set of protection, related to the application;
● 4 current input, 4 voltage input, 12DI, 5DO;
● Auxiliary power supply adapts with AC220V, DC220V, DC110V, AC110V;
● 1 RS485 serial communication, IEC60870-5-103 and Modbus-RTU;
● 1 RS232 for user update;
● 1 GPS for GPS timing;
● More than 200 sequence of event records, more than 400 system logs, and more than 10 seconds tripping context records;
● Powerful graphic programmable Logic.
General
AM series microcomputer protection measurement and control device set protection, measurement, control in one, suitable for 35kV and below the voltage level of the user terminal substation (station), can achieve the protection and measurement and control of the user substation. Application fields cover power, water conservancy, transportation, petroleum, chemical, coal, metallurgy and other industries.
Front Panel
LCD Display
Function
Installation
Dimension
Cut-out Dimension
Wiring
Typical Connection
| Rated Parameter | Power Supply | Power supply: AC/DC220V,Or AC/DC110V, or DC48V(Reference the wiring diagram) |
| Range: Power supply x (1±20%） | ||
| Maximum power consumption: ≤10W（DC） | ||
| Rated Voltage | Rated Voltage: AC100V | |
| Range: 1-120V | ||
| Accuracy: ±0.5% | ||
| Power Consumption: ≤0.5VA(Single phase) | ||
| Overload capacity: 1.2 times rated voltage for continous work; 2 times for 10 seconds | ||
| Rated Current | Rated current: AC 5A/1A(See the device wiring diagram) | |
| Range: 0.04In~15In | ||
| Power consumption: ≤0.5VA(Single phase) | ||
| Over capacity: 2 times rated current for continuous work; 40 times for 1 second | ||
| Frequency | Rated frequency: 50Hz or 60 Hz | |
| Range: 45~55Hz | ||
| Accuracy: ±0.1Hz | ||
| Digital Inut | Rated Voltage: AC/DC220V,AC/DC110V, DC48V(Similar to power supply) | |
| Voltage Range: Rated voltage x (1±20%） | ||
| Power Consumption: ≤1W(DC220V)(Single channel) | ||
| Digital Output | Mechanical life: ≥10000 times | |
| Switching capacity: ≥1000W, L/R=40ms | ||
| On current: continuous≥5A short time(200ms)≥30A | ||
| Interrupting capacity: ≥30W, L/R=40ms | ||
| Normal Working Conditions | Ambient temperature: -10℃~+55℃ | |
| Device storage, transport allows the ambient temperature is -25℃~+70℃ | ||
| Relative humidity: 5%~95% | ||
| Altitude: ≤4000m | ||
Q: How to set the CT and PT ratio of the protection device?
A: The protection device can set the CT and PT ratio through the fixed value menu. For example, the current transformer is 75/5 and the voltage transformer is 10/0.1, then the CT ratio is set to 15 and the PT ratio is set to 100.
Q: For AM4, if you want to place a circuit line protection and transformer protection, how to distinguish the model?
A: AM4 is suitable for circuit protection and transformer protection. No need to distinguish between models when placing orders
Q: When the voltage is three-phase three-wire system, does the current have to be connected with 2CT?
A: The voltage wiring mode and current wiring mode of the protection device can be set independently, and can be connected freely.
Q: How to confirm whether the anti-trip function is configured?
A: If the circuit breaker is equipped with anti-trip, the device does not must be equipped with anti-trip; if the circuit breaker does not have anti-trip, you need to configure the AM5-FT anti-trip module. (If DC48V is selected as the operating power supply, the anti-trip box is not optional, and the circuit breaker must be equipped with anti-trip function; if you choose AC anti-trip, please note that AC and DC general anti-tripping)
Q: How to purchase suitable protection devices?
A: Before ordering, it is recommended to consult related engineers, select the appropriate protection model, and then fill in the corresponding selection table, and place the order after confirmation by the engineers.
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