TKDQ3 series automatic transfer switch-Taikai Electric Appliance-Dedicated to low-voltage equipment

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TKDQ3 series automatic transfer switch

The TKDQ3 series automatic transfer switch is mainly used in AC 50Hz, rated voltage 400V, rated current 16A to 3200A power distribution or motor networks for one main and one standby or mutually redundant power switching systems, as well as load switching between mains and generator sets. It can also be used for infrequent connection and disconnection of circuits for isolation. The product is widely used in power distribution and automation systems in important power supply locations such as fire protection, hospitals, banks, and high-rise buildings where power outages are not allowed.

Belonging Category:

Dual power supply transfer switch

Keywords:

TKDQ3 series automatic transfer switch

86-538-8520889

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Product Details

Scope of application

The TKDQ3 series automatic transfer switch is mainly used in AC 50Hz, Rated voltage 400V, Rated current 16A to 3200A power distribution or motor networks for one main and one standby or mutually redundant power switching systems, and load switching between the mains and the generator set. It can also be used for isolation of circuits that are not frequently switched on and off. The product is widely used in fire protection, hospitals, banks, high-rise buildings and other important power supply places that are not allowed to be powered off, as well as power distribution systems and automation systems.

Standards Compliance

IEC60947-1 GB/T 14048.1 Low-voltage switchgear and controlgear General rules

IEC60947-6-1 GB/T 14048.11 Low-voltage switchgear and controlgear Multifunctional electrical appliances Transfer switch electrical appliances

Stand working conditions and installation conditions

The ambient air temperature does not exceed +40℃, and the average value of 24h does not exceed +35℃, the lower limit of ambient air temperature is -5℃; Note: For use in ambient air temperature above +40℃ or below -5℃ working conditions, users should consult with our company;

The altitude of the installation location does not exceed 2000m;

When the highest temperature is +40℃, the relative humidity of the air does not exceed 50%, and higher relative humidity is allowed at lower temperatures, such as 90% at 20℃. Special measures should be taken for occasional condensation due to temperature changes;

In places where there is no explosive hazard in the air and no gases and conductive dust that can corrode metals and destroy insulation, and no rain and snow invasion;

Pollution level is level 3;

The maximum inclination of the Circuit-breaker installation is ±22.5°;

Installation category: The installation category of the main circuit of the Circuit-breaker is Y, and the installation category of the auxiliary circuit and control circuit not connected to the main circuit is Ⅱ;

The Circuit-breaker should be installed and used according to the requirements of the product Product Manual;

Performance and characteristics

Using double-row composite contacts, horizontal pull-type mechanism, micro-motor pre-energy storage and microelectronic control technology, basically achieving zero arc;

Using reliable mechanical interlock and electrical interlock, the executive components use independent load isolating switches, which are safe and reliable;

Using zero-crossing technology, in emergency situations, it can be forcibly zeroed (simultaneously cutting off both power supplies), meeting the needs of fire linkage;

The execution of the load isolating switch switching uses a single motor drive, the switching is reliable, stable, noiseless, and has small impact force;

The operator drive motor only passes current when executing the load isolating switch switching, and no working current is required for steady-state operation, significantly saving energy;

The executive load isolating switch has a mechanical interlock device to ensure that the common and standby power supplies work reliably without interfering with each other;

It has obvious on-off position indication, padlock and other functions, reliably realizing the isolation between the power supply and the load;

Good safety performance, high degree of automation, high reliability, service life of more than 8000 times;

Electromechanical integrated design, the switch conversion is accurate, flexible and smooth, using internationally advanced logic control technology, strong anti-interference ability, and no interference to the outside;

It has three stable working states (1-0-): main power supply on, standby power supply off; main power supply off, standby power supply on; both main and standby power supplies are off.

Easy installation, the control circuit uses plug-in terminal connection;

Four operating functions: emergency manual operation, electric remote control operation, emergency disconnection operation in automatic control state, automatic control operation.

Model and meaning

TKD
1

Q
2

3
3

250
4

C
5

3P
6

250A
7

R
8

Integrated
9

□
10

Serial number	Description	Model meaning
1	Enterprise code	TKD: Shandong Taikai Electrical Appliance Co., Ltd.
2	Product category	Q: Automatic transfer switch
3	Design SN	3
4	frame size	See the main Main technical parameters table
5	Controller code	C, D, E, F
6	Pole number	3P, 4P
7	Rated current	See the main Main technical parameters table
8	Controller function code	R: Self-starting and self-restoring, S: Self-starting but not self-restoring, F: Grid to generator
9	Product structure	Integrated, split
10	Optional functions	See the main Main technical parameters table

Controller function parameter table

Item\Model	C type	D type	E type	F type
Control working voltage	AC230V 50/60Hz
Auxiliary power supply voltage	DC 24V
Voltage measurement range	40~300V
Power consumption	≤ 10W
Working position	Three working positions (commonly used closing, standby closing, double separation)
Operation mode	Manual, Automatic	Manual, Automatic, Remote control		Manual, Automatic
Display method	LED indicator display	LCD screen display		LED indicator display
Switching method	Self-starting and self-restoring	Self-starting and self-restoring / Self-starting but not self-restoring
Undervoltage switching value	187V	160~200V adjustable		187V
Overvoltage switching value	263V	240~290V adjustable		263V
Power underfrequency/overfrequency detection	None		40Hz ~ 60Hz adjustable	None
Timed start function	None		Timed switching, timed start of the generator	None
Switching delay function	0	0~300s continuously adjustable		0
Return delay function	0	0~300s continuously adjustable		0
Phase loss detection	Three-phase detection (A, B, C)
Power over/undervoltage and phase error alarm output	None			One normally open dry contact for each of the normal and standby
Generator control	Yes (one set of relay dry contacts)			None
Fire alarm linkage control	Fire alarm cut-off (passive contact input, with one normally open passive signal feedback point)			Forced common, standby, double separation (passive input)
Switch fault alarm	None			Yes (with one set of relay dry contacts)
Isolation lock	The off position has an isolation function and can be locked with a padlock
RS485 communication function	(Default none) Optional			None
Mounting Method	Integrated (without display) / Separate (with display) optional

Controller Model and implication:

Type C: Three-phase sampling function, fire protection function

Type D: Three-phase sampling with fire protection function, communication function

Type E: Three-phase sampling with fire protection function, timed switching, timed generator start

Type F: Fire protection dedicated

Main technical performance parameters

●TKDQ3 -100~1600A series automatic transfer switch electrical and mechanical performance

Specifications	TKDQ3-100	TKDQ3-160	TKDQ3-250	TKDQ3-630	TKDQ3-800	TKDQ3-1000	TKDQ3-1250	TKDQ3-1600
Rated working current le(A)	16, 20, 25, 32, 40, 50, 63, 80, 100	125, 140, 160	200, 225, 250	315, 400, 500, 630	800	1000	1250	1600
Rated short-circuit making capacity Icm(kA) peak	8	17	17	26	55
Rated insulation voltage Ui(V)	690
Rated withstand impulse voltage Uimp (kV)	8
Rated limiting short-circuit current Iq(kA)	120
Switching time	1.7	2.3	3.1	2.1	2.6
Contact switching time	0.7	1	1.2	0.8	1
Category of use	AC-33iB (PC level)				AC-32B (PC level)

Wiring diagram

Appearance and installation dimensions

frame size	Dimensions (mm)									Installation dimensions (mm)
Inm	A	A1	B	B1	C	E	J	K	L	N	P	R	V	ΦX	Y	Y1	Y2	t
TKDQ3-100	330	244	142	123	165	125	228	85	6.5	83	30	14	21	6.5	41.5	91.5	43	2.5
TKDQ3-160	374	301	175	140	200	166	285	102	7	94	36	20	31	8.5	55.5	125.5	92.5	3.5
TKDQ3-250	436	373	175	178	250	198	350	108	6.5	105	50	24	37	11	72	157	116	3.5
TKDQ3-630	502	433	260	260	295	244	416	180	9	101	65	40	47.5	12	83	193	140	5
TKDQ3-800	1050	636	365	355	373	320	612	220	11	83.5	120	60	71	13	109	241	105	8
TKDQ3-1000	1050	636	365	355	373	320	612	220	11	83.5	120	60	71	13	109	241	105	8
TKDQ3-1250	1050	636	375	366	373	320	612	220	11	83.5	120	60	71	13	109	241	106	8
TKDQ3-1600	1050	636	375	366	373	320	612	220	11	83.5	120	60	71	13	109	241	106	10