How to select type according to the characteristics of electric dynamometer

The electric dynamometer has the following characteristics:
Energy saving: convert the mechanical energy generated by the prime mover into electrical energy and feed it back to the internal power grid for use by other equipment.
Loading mode: provide two-way consistent loading capacity, and still provide sufficient loading capacity when the speed reaches 0r/min; The load characteristic is constant torque characteristic from zero speed to rated speed, and constant power optimization characteristic from rated speed to maximum speed. To adapt to the dynamic mechanical test of different steering.
Transient loading characteristics: the main response time of the electric dynamometer is ms level.
Traction capacity: the electric dynamometer can be easily converted into the motor traction mode, absorb energy from the power grid, and serve as the power machinery to reverse the prime mover.
Good reliability and long service life: adopt mature and reliable technology, select famous brand products at home and abroad, reduce the frequency of failure of the used products to the minimum, and prolong the use of the products.
Emergency protection features: provide multiple protection functions such as cylinder phase, overvoltage, overcurrent, overspeed, etc. to protect the dynamometer and test products in case of failure.
Good maintainability: users can carry out daily maintenance (also when replacing the host and sensor) to reduce maintenance costs.
How to select the type of electric dynamometer?

Selection of low-speed electric dynamometer:

型号 Type	额定功率（Kw） Rated power	额定转矩 (Nm) Rated torque	额定转速（r/min） Rated speed	最高转速（r/min） Max. speed	额定电压（V） Rated Voitage	基本频率（Hz） Fundamental frequency
YDL5.5	5.5	30	1500	6000	380	50
YDL7.5	7.5	50	1500	6000	380	50
YDL11	11	70	1500	6000	380	50
YDL22	22	140	1500	6000	380	50
YDL 37	37	240	1500	6000	380	50
YDL55	55	350	1500	4500	380	50
YDL 75	75	470	1500	3000	380	50
YDL 90	90	550	1500	3000	380	50
YDL110	110	700	1500	3000	380	50
YDL 132	132	850	1500	3000	380	50
YDL 160	160	1000	1500	3000	380	50
YDL220	220	1400	1500	3000	380	50
YDL315	315	2000	1500	3000	380	50
YDL400	400	2500	1500	3000	380	50
YDL500	500	3200	1500	3000	690	50
YDL630	630	4000	1500	2500	690	50
YDL800	800	5100	1500	2500	690	50

Selection of high-speed electric dynamometer:

型号 Type	额定功率（Kw） Rated power	额定转矩 (Nm) Rated torque	额定转速（r/min） Rated speed	最高转速（r/min） Max. speed	额定电压（V） Rated Voitage	基本频率（Hz） Fundamental frequency
YDLG5.5	5.5	15	3000	10000	380	100
YDLG7.5	7.5	25	3000	10000	380	100
YDLG11	11	35	3000	10000	380	100
YDLG22	22	70	3000	10000	380	100
YDLG 37	37	120	3000	10000	380	100
YDLG55	55	180	3000	10000	380	100
YDLG75	75	240	3000	7500	380	100
YDLG90	90	300	3000	7500	380	100
YDLG110	110	350	3000	7500	380	100
YDLG132	132	400	3000	7500	380	100
YDLG160	160	500	3000	7500	380	100
YDLG220	220	700	3000	6000	380	100
YDLG315	315	1000	3000	6000	380	100
YDLG400	400	1200	3000	6000	380	100