Low voltage dynamic reactive power regulator (FTTK)

Parameters

◇Ambient temperature: -25°C to +55°C

◇Altitude: no more than 2000M

◇Atmospheric conditions: air humidity not exceeding 90%

◇Environmental conditions: media free of conductive dust

 

How to use

◇Main circuit: R, S, T: power supply connection terminal; U, V, W: connection to capacitor terminal

◇Control circuit: K+ terminal: positive side of the control voltage, K- terminal: negative side of the control voltage

◇Working power supply: L terminal: phase line (any one phase), N terminal: zero terminal, AC 220V access required on L, N line.

 

Security .

◇ The installation, maintenance and operation of this dynamic reactive power regulator is to be carried out by personnel with the relevant professional knowledge and skills.

◇ Determine if the power supply system is the same as the product ordered.

◇ Do not open the housing of the dynamic reactive power regulator at will to prevent electric shock.

 

Principle of operation .

FTTK series low-voltage dynamic reactive power regulator is a kind of "over-zero trigger" thyristor switch, the main circuit of the regulator adopts anti-parallel thyristor module, the control circuit board is composed of trigger, photoelectric isolation and logic control, the regulator combines heat sink, fan, temperature control, etc., with temperature control to start the fan, over-temperature protection function. FTTK adopts the principle of "over-zero trigger", no inrush current when putting in capacitors, dynamic response time≦20ms, it is a kind of power electronic switch for capacitor throwing.

 

Model naming rules:

 

 

Performance parameters:

 

Rated voltage	380av±10%,480vac±10%,525vac±10%,690vac±10%。
Operating voltage	100V - 260V AC
Rated frequency	50Hz-60Hz
Rated current	45A,55A,85A,95A,125A,165A
Control voltage	DC12C/10mA control voltage supplied by the controller itself
Dynamic response	≦20ms
Repeat cut	≦40ms
Pneumatic fan temperature	55±3°
Protection temperature	85±3°

 

 

Capacitor configuration table:

 

Serial number	Model	Capacitor capacity
Common complementary Δ external	FTTK-45G	≦16Kvar
	FTTK-55G	18-30Kvar
	FTTK-85G	31-50Kvar
	FTTK-95G	51-62.5Kvar
	FTTK-125G	65-75Kvar
	FTTK-165G	76-100Kvar
Split Y connection	FTTK-45G	≦3*5Kvar
	FTTK-55G	3*（5.5-10）Kvar
	FTTK-85G	3*（11-17）Kvar
	FTTK-95G	3*（18-20）Kvar

 

 

Shapes and dimensions:

 

Model	Mounting dimensions (mm)	Opening size (mm)
FTTK-45G/F	203±8*37	176*116
FTTK-55G/F
FTTK-85G/F
FTTK-95G/F
FTTK-125G/F		176*152
FTTK-165G/F	Reference technical parameters	176-237

 

 

 

Wiring diagram:

 

 

6.1FTTK-45/55/85/95

 

Dimensions of the layout for mounting the regulator:

 

 

 

6.2FTTK-125G

 

 

6.3FTTK-165G