AK06 | TRIOLCORP

Triol AK06
Variable speed drive for electric submersible pumps

General Description

Purpose:
Triol AK06 VSD is intended to control and protect electric submersible pumping units (ESPU) with nominal power from 16 to 1450 kW. The Triol AK06 provides open-loop scalar control (V/f control) for induction or synchronous motors and sensorless control for brushless DC motors.

Main Features:

Various operation modes simplify well automation Manual mode:
Allows the user to operate the drive directly from the control panel.

Automatic operation modes:

Pressure regulation: maintains preset annular, suction, wellhead or line pressure (using submersible telemetric unit)
Current regulation: maintains a preset output current

Soft start and braking:
Soft starting the motor reduces the inrush current and extends the ESPU life.

Submersible motor protection The Triol AK06 stops the motor under the following conditions:

Interruption in oil extraction (underload protection);
Supply network disturbances;
Current overload;
Low ESP insulation resistance;
High pipeline pressure (by a signal from a contact pressure gauge); and
ESP overheating (using a submersible telemetric unit).

Easy operation and service The menu of the UMKA-03 controller can be adapted to the user’s preferences. The construction of the Triol AK06 is designed to ease the operation and repair onsite under different climatic conditions.

Extends ESPU life The embedded output sine filter delivers pure sinusoidal voltage and current to the motor, which reduces motor derating and reduces transformer overheating in the case that one is used one between the drive and the motor.

Operates under severe climate conditions The Triol AK06 offers a protection level of IP43 and an operating temperature range from minus 60°C to plus 50 °C. The device has an effective climate control system with both heating and cooling capabilities, depending on the temperature inside the different sections of the drive.

Reduces power consumption using intellectual operating modes
The use of intellectual algorithms (ASPED) allows saving about 6% of consumed power. This is achieved by choosing the optimal output voltage at a fixed output frequency while obtaining the maximum oil exctraction yield.

Specifications

Triol AK06 technical specifications

Nominal output current	100…3200 A
Supply voltage	3 x 380 V (- 50%, + 25%), 50/60 Hz (± 1%) 3 x 480 V (- 15%, + 10%), 50/60 Hz (± 1%) 3 x 690 V (- 15%, + 10%), 50/60 Hz (± 1%)
Nominal output voltage	3 x 0…380 V (± 2%) 3 x 0…480 V (± 2%) 3 x 0…690 V (± 2%)
Output frequency	0…80 Hz (± 0.1%) for induction and synchronous motors 0...500 Hz (± 0.1%) for brushless DC motors
Overload current	125% of nominal current for 300 seconds
Efficiency	> 95%
Operating mode	Continuous
Insulation resistance	> 20 MOhm
Control system	UMKA-03 controller
Controller memory size	8 MB (870000 records) 2 GB with SD memory card
Interface	RS 232; RS 485; CAN; USB
Data exchange protocol	Modbus RTU; CANopen
Operating temperature	- 60 °C … + 50 °C
Protection level according to IEC 60529	IP43

Triol AK06 model range

Model	Nominal output current, A	Active output power, kW	Full output power, kVA	Dimentions, mm
Triol АК06-100	100	55	64	950х1900х890
Triol АК06-160	160	90	106	950х1900х890
Triol АК06-250	250	132	176	950х1900х890
Triol АК06-320	320	160	182	950х1900х890
Triol АК06-400	400	200	263	950х1900х890
Triol АК06-630	630	315	414	1300х1900х1050
Triol АК06-800	800	400	526	1300х1900х1050
Triol АК06-1К0	1000	500	658	1850х1990х1080
Triol АК06-1К2	1200	600	789	2040х2000х1080
Triol АК06-1К4	1400	700	921	2040х2000х1080
Triol АК06-1К6	1600	800	1053	2040х2000х1080
Triol АК06-2К0	2000	1000	1316	1850х1990х1080 (2 Cabinets)
Triol АК06-2К5	2500	1250	1644	2040х2000х1080 (2 Cabinets)
Triol АК06-3К2	3200	1600	2106	2040х2000х1080 (2 Cabinets)

Functionality

The Triol AK06 offers the following functions:

Soft start and stop of the motor with preset acceleration and braking rate (Hz/s);
“Manual”, “Automatic” or “Automatic with preset time” modes determine whether the motor starts automatically after a fault occurs or awaits the operator’s command;
"Catch on the fly" mode starts ESP when the forced counter-rotation is induced by the load on the pump (turbine rotation). The Triol AK06 smoothly reduces the shaft's rotation speed and then reverses it to the forward direction without the current overload. In oil extraction, this mode allows immediately starting the motor, rather than waiting for the oil to drain back into the pipe and for the turbine rotation to eventually stop gearing;
“Current optimization” mode changes the output voltage to get the minimum full load current at fixed output frequency;
Start and stop according to a preset time configuration;
Local and distant operating parameter control;
Change output frequency according to a preset time configuration;
Operating the motor in field weakening region by raising the output frequency above nominal;
Starting ESP after supply is delivered after a preset time;
Maintaining a preset technological parameter (pressure, ESM current, vibration, liquid level, ESM load);
Starting ESP in “swinging” mode; “kick start swinging” mode can be used to unblock ESP in the case of mechanical jamming;
“Soft start with synchronization” holds a frequency for a preset time upon starting and then continues to start operation;
Starting ESP in the “unjamming” mode delivers maximum torque at low frequency;
Continuous monitoring of ESP isolation resistance and turning the motor off when isolation drops under a certain preset value;

The Triol AK06 protects ESPs from the following:

High current;
Underload;
Overload;
Low “cable – ESP chassis” insulation resistance;
High ESP temperature (with submersible telemetry);
Low base oil pressure (using submersible telemetry);
High vibration level (using submersible telemetry); and
High pipeline pressure (using contact pressure gauge).

Images

Triol AK06-400. Front view

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