1. Resistance F component code: “B” -ZB1 and ZB2 - Kang copper plate resistor element; J (Y) -ZJ (Y) -iron chromium aluminum tooth (also known as large wave resistance element); D-ZD1- iron chromium aluminum small wave resistance element; H-ZH-stainless steel mesh resistor element. 2. Energization sustained rate TD%: TD 15% is “1"; 02TD 25% is “2"; 02TD 40% is “4"; 02TD 60% is “6" 023, control system code: T-cam controller control (asymmetric resistance) K-cam controller control (asymmetric resistance, rotor one-phase open start) Q-with PQR10 type is PQ D6402 lifting control box (7 Segment resistance six-stage switching) S- with PQS single-phase braking lifting control box (five-stage resistor four-stage switching) SF-with PQs single-phase braking lifting control box (six-stage resistor five-stage switching) Y-RQY type PQR9 type is PQD6401 translation control box Z-PQZ type grab control box (four-stage resistance three-stage switching) Exchange) Ze-PQZ type grab control box (five-stage resistor four-stage switching) F- QR2S secondary reverse brake lifting control box