Some main functions of the remote control cabinet transformer:
Variable Transformer Controller (OLTC Kit) with the following modes:
+ Variable hysteresis control.
Automatic / manual control (Auto / Man).
+ SCADA / REMOTE control.
Fan control system:
Control of fan run / stop by group.
Automatic / manual control.
Monitoring Function:
+ Oil temperature monitoring, transformer coil.
+ Monitor the transformer hose.
+ Monitoring output transformer voltage.
OLTC Working Conditions.
+ Working status of fan system, …
+ ALARM / TRIP signals, …
Main functions:
Controlled OLTC steps and cooling fan in the operating room in two manual and automatic modes.
Observe transformer operating parameters.
Operation of two transformers in parallel.
Signal to the operating center.
Signal and alarm in the case of transformer failure by digital.
* Manufacturing standards:
– TCVN 4255: 2008, IEC 60529: 2001: standard on the protection level of cabinets.
– TCVN 799-1: 2009, IEC 60439-1: 2004: standard switch cabinet and control.
– IEC 144: protection level of low voltage switchgear and control cabinets.
– IEC 61850: SCADA system connection protocol.
Table specifications and specifications:
* Parameters:
| Specifications | AVR1 | AVR2 |
| Automatic voltage regulation relay | REG-DA | TAPCON |
| DC power supply | 220VDC/110VDC | 220VDC/110VDC |
| AC power supply | 220VAC | 220VAC |
| Input variable CT input | -/1A (5A) | -/1A (5A) |
| Rated frequency | 50Hz | 50Hz |
| Protection level | 4X | 4X |
| Size:
– Wide – High – Deep |
700 2200 800 |
700 2200 800 |
