Please refer the attached document connection in 3P RCCB. You can follow the same document for connection in three-Phase without neutral. >> If you are using Acti9 range RCCB, You don't need to add the resistor with iID Acti9 RCCB. You can directly connect the 3 phase on 3 poles of RCCB...

Issue: After installing PowerChute Network Shutdown for an ESXi host, the PowerChute VM reports “PowerChute Services are disabled due to invalid credentials. Please refer to the PowerChute User Guide for recovery procedures.” Product: PowerChute Network Shutdown versions 4.4.x, 5.0 Environment:...

Buchholz protection is normally provided on all transformers fitted with a conservator. The Buchholz relay is contained in a cast housing which is connected in the pipe to the conservator, as in figure shown. A typical Buchholz relay will have two sets of contacts. One is arranged to operate for...

Attached extract from IEC61439-2 describing the type of forms.

- PT100 is an RTD (Resistance Temperature Probe) made of Platinum metal which has a resistance value of 100 ohms at zero degrees celsius. - PTC (Positive Temperature Coefficient) and NTC (Negative Temperature Coefficient) are both types of Thermistor. NTC have resistance that decreases with...

Issue: Using VAM 4C as a stand alone over current relay without being connected to VAMP 321. Environment: VAMP I/O units Resolution: VAM 4C can not be used as a stand alone over current protection relay. VAM 4C is a Modbus slave that always requires a master.

For earth loop impedance, we can provide the method and the customer calculates it according to his need. Our colleagues of Schneider UK have made Zs calculations for Compact NS and NSX, see the attached file with 5 seconds and 0,4 seconds disconnection times, for a voltage of 230V to earth. We've...

The Altistart 48 connected in the motor supply line The motor connection depends on the supply voltage, which in this example is a star connection. The motor connection depends on the supply voltage, which in this example is a delta connection. The Altistart 48 connected in the motor delta winding...

issue: Customer wants to know the value of the symmetrical and asymmetrical breaking current of the circuit breaker and what do they mean. Environment: Circuit Breaker Resolution: - Symmetrical breaking current is the RMS value of AC component of short circuit current at the instant of separation...

Issue: Testing phase loss on a meter doesn't result in a null voltage reading. Environmnet: EasyLogic Series Power Meters PowerLogic Series Power Meters Resolution: The voltage seen is what we call "phantom voltage", its a known phenomenon with all high impedance power meters. These phantom...

Issue: Having two different values for RL ( Lead resistance from the CT to the relay); RL from the phase CT to the relay and RL from the neutral point CT to the relay Environment: Protection Function ANSI 64ref High impedance differential Sepam 80 Current Transformer requirement Resolution: In any...

Issue: What is an electrical "ground loop" and how does it affect my equipment? Environment: Ground loops can occur in any situation where multiple electrical devices are interconnected, especially when those devices are powered from different sources or located in different places with varying...

Issue: How do I remember the relationship of voltage, current and resistance in an electrical system? Environment: N/A Solution: Voltage (unit of measurement - volt) is like the water pressure in the pipe. When you turn on a faucet, the water pressure makes the water flow out. Similarly, voltage...

Apa alternatif replacement battery UPS SURT15KRMXLI jika APCRBC140 tidak ready stock? ======================================================================= Untuk alternatifnya bisa menggunakan battery pack type SURT192XLBP sebanyak 2 sets, karena didalam 1 set SURT192XLBP terdapat 2 sets battery...

Issue: What is Power Factor Correction (PFC) - Does it help conserve energy? Answer: Explanation 1: Power Factor Correction (PFC) doesn't directly reduce the overall electric consumption of a device or system, but it does play a role in optimizing the efficiency of electrical systems, which can...