The requirements of ground source hot water well submersible pump motor

Ground source  hot water well submersible pump motor shall comply with the provisions of GB/T2818-2014. The design and construction of the motor, it must be with hot water pump operating conditions (such as frequency and frequency conversion, 380 v and 6000 v, etc.) and maintenance requirements. Motor shall be the new type of high efficiency and energy saving motor (not the first, second and third batch out) the directory products, motor adopts three-phase 50 hz, rated voltage 380 v ac motor.

Hot water well submersible pump motor drag equipment nameplate output of not less than 115% of the required output. For rated voltage is 400 v, 50 hz frequency motor, when the frequency is rated, and the power supply voltage and rating of the deviation of not more than plus or minus 10%, the motor should be able to output rated power, voltage when rated, and the power frequency and rating the deviation of not more than plus or minus 5%, the motor should be able to output power rating. Cold starting of the motor allows 2 times, each time interval for 5 minutes. Hot starting allow one time, starting time, such as no more than 2 ~ 3 seconds, can start many times.

Ground source heat pump well matching motor is suitable for all voltage starting, to ensure that the motor under the under voltage automatic starting, allowing high voltage motor automatic starting voltage is 65% ~ 70% of the rated voltage, low voltage from the starting voltage is 55% ~ 60% of the rated voltage. To quickly switch motor should be able to afford the power loss in the process of electricity without being damaged, and assume that the motor is full load running in front of the switch. The damage of the motor torque is not less than 180% of the full load torque. Multiple motor starting current is not more than six times the rated current. Under the rated voltage, maximum torque to the guarantee of the ratio of the rated torque value is 1.6 times.

Well ground source  hot water well submersible pump motor cable and wiring requirements: requires electrical outlet for line 6 (three-phase line from in single-phase motor is divided into 2 to 6 lines drawn into two three-phase joint, there are two outlet hole to the outside of motor, by 2 three cable connect to inoue, to reduce the diameter of cables and connectors, prevent wall scratch). The cable can meet the requirements of motor power.

Ground source heat pump well matching motor should be confined water filling type, protection grade by 8, factory over 150 M Ω insulation resistance.

Heat pump is fitted motivation should be by the bidder according to complete sets of experience with mature and the performance of the product, and in accordance with the current effective version of the rotating machine - norm and performance standards. Bidder shall ensure that the whole equipment meet the requirements of technical specification book.