PMM1010 - Advanced Auto Voltage Selector
AUTO VOLTAGE SELECTION RELAY
Price from USD 1420.00
Key features
- Ultra-fast switching time (< 7ms)
- Detects source voltage failures
- Detects phase angle imbalance
- Detects reverse phase sequence
- Detects supply under-voltage
- Single or double shot re-close with selectable auto reset mode
- 110V, 220V, 415V 50Hz or 60Hz versions
- Failsafe operation (contact normally connected to primary source (source 1))
- Compact design and mechanically stable
- Din Rail, Wall and panel mount mounting options
- Optional CPU and RS485 communication module (Modbus RTU)
Overview
DESCRIPTION
PMM1010 is an internal, high-speed metering auto voltage selection relay designed to allow automatic changeover from a primary 3-phase supply to a secondary 3-phase supply if any fault in the primary supply is detected. An alarm contact and front panel LEDs indicators are provided to ease fault diagnosis.
The device also, has an optional CPU board which provides the client with RS485 connection to remotely monitor the status of primary and secondary supply as well as alarm and fault log.
The CPU board provides an independent internal source of signals which can be integrated in the metering system, therefore, providing the client with an accurate switching time for invoicing calculation purposes.
TARGET APPLICATION
PMM1010 monitors the three-phase voltage supply and operates immediately if the supply is interrupted or becomes unbalanced due to failure of the primary or secondary voltage sources.
The recovery of the primary supply to a healthy condition will cause the relay to change back to the primary supply (if automatic mode for source 1 priority is selected).
The automatic recovery mode can be set by connecting priority terminals together. In case of manual mode, the user needs to press the reset button on the front panel to reset the connection to the primary source.
Front panel LEDs will indicate the status of sources and device operation and thus allowing fault recognition. The LEDs will be activated due to the following conditions:
- Supply sources line status
- Output health and active source indicators
- Phase rotation sequence indicator
- Automatic reset selection
- CPU status
- RS485 Communication status
Also, a typical application as a voltage selection relay is the automatic connection of metering equipment to an alternative supply if the primary or preferred supply fails, or any similar application.
Specifications
| Ratings | |
|---|---|
| Voltage Ratings | 110/125V AC |
| Burdens | Less than 0.1 amp per phase at rated voltage |
| Frequency | 50 or 60Hz |
| Operating Boundaries | 80% – 125% of lower rating |
| Contacts | Six pairs of isolated self-reset changeover contacts are provided for voltage selection switching |
| Make and Carry Continuously | 1250VA with maximum of 5A and 660V |
| Make and Carry for 3 Seconds | 7500VA with maxima of 30A and 660V |
| Break | 1250VA with maximum of 5A and 660V |
| Voltage Operating Ranges | |
| Dielectric IEC 255-5 | 2kV rms for 1 minute between all case terminals connected and the case earth terminal | 2kV rms for 1 minute between independent circuits including contact circuits | 1kV rms for 1 minute across normally open outgoing contact pairs |
| High Voltage Impulse IEC 255-5 | 5kV peak, 1.2/50ms, 0.5J between all terminals and case earth and between adjacent terminals |
| High Frequency Disturbance IEC 255-22-1 Class III | Static relays only: | 2.5kV peak between independent circuits | 2.5kv peak between circuits and case earth | 1MHz bursts decaying to 50% of circuit’s peak values after 3-6 cycles |
| Environmental Conditions | |
| Temperature IEC 68-2-1 IEC 68-2-2 | Storage and transit –25°C to +70°C | Operating –25°C to +55°C |
| Humidity | 56 days (at 93% RH and +40°C) |
| Enclosure Protection IEC 529 | IP50 (dust protected) | (individual relays) |
| Vibration IEC 255-21-1 Class 1 | 0.5g between 60Hz and 300Hz, | 0.07mm peak–peak between | 10Hz and 60Hz. |
| Mechanical Durability Loaded Contact Unloaded Contact | 10,000 operations minimum | 100,000 operations minimum |